Common Weakness Enumeration
CWE-401
AllowedMissing Release of Memory after Effective Lifetime
Abstraction: Variant · Status: Draft
The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
2002 vulnerabilities reference this CWE, most recent first.
CVE-2021-3492 (GCVE-0-2021-3492)
Vulnerability from cvelistv5 – Published: 2021-04-17 04:20 – Updated: 2024-09-17 03:54
VLAI
EPSS
VEX
Title
Ubuntu linux kernel shiftfs file system double free vulnerability
Summary
Shiftfs, an out-of-tree stacking file system included in Ubuntu Linux kernels, did not properly handle faults occurring during copy_from_user() correctly. These could lead to either a double-free situation or memory not being freed at all. An attacker could use this to cause a denial of service (kernel memory exhaustion) or gain privileges via executing arbitrary code. AKA ZDI-CAN-13562.
Severity
8.8 (High)
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://www.openwall.com/lists/oss-security/2021/… | x_refsource_MISC |
| https://git.launchpad.net/~ubuntu-kernel/ubuntu/+… | x_refsource_MISC |
| https://git.launchpad.net/~ubuntu-kernel/ubuntu/+… | x_refsource_MISC |
| https://ubuntu.com/security/notices/USN-4917-1 | x_refsource_MISC |
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
| http://packetstormsecurity.com/files/162614/Kerne… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Ubuntu | Linux kernel |
Affected:
5.8 kernel , < 5.8.0-50.56
(custom)
Affected: 5.4 kernel , < 5.4.0-72.80 (custom) |
Date Public
2021-04-15 00:00
Credits
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CVE-2021-1598 (GCVE-0-2021-1598)
Vulnerability from cvelistv5 – Published: 2021-07-08 18:35 – Updated: 2024-11-07 22:06
VLAI
EPSS
VEX
Title
Cisco Video Surveillance 7000 Series IP Cameras Link Layer Discovery Protocol Memory Leak Vulnerabilities
Summary
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Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Video Surveillance 7000 Series IP Cameras |
Affected:
n/a
|
Date Public
2021-07-07 00:00
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CVE-2021-1597 (GCVE-0-2021-1597)
Vulnerability from cvelistv5 – Published: 2021-07-08 18:35 – Updated: 2024-11-07 22:06
VLAI
EPSS
VEX
Title
Cisco Video Surveillance 7000 Series IP Cameras Link Layer Discovery Protocol Memory Leak Vulnerabilities
Summary
Multiple vulnerabilities in the Link Layer Discovery Protocol (LLDP) implementation for Cisco Video Surveillance 7000 Series IP Cameras could allow an unauthenticated, adjacent attacker to cause a memory leak, which could lead to a denial of service (DoS) condition on an affected device. These vulnerabilities are due to incorrect processing of certain LLDP packets at ingress time. An attacker could exploit these vulnerabilities by sending crafted LLDP packets to an affected device. A successful exploit could allow the attacker to cause the affected device to continuously consume memory, which could cause the device to crash and reload, resulting in a DoS condition. Note: LLDP is a Layer 2 protocol. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Video Surveillance 7000 Series IP Cameras |
Affected:
n/a
|
Date Public
2021-07-07 00:00
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CVE-2021-1596 (GCVE-0-2021-1596)
Vulnerability from cvelistv5 – Published: 2021-07-08 18:35 – Updated: 2024-11-07 22:06
VLAI
EPSS
VEX
Title
Cisco Video Surveillance 7000 Series IP Cameras Link Layer Discovery Protocol Memory Leak Vulnerabilities
Summary
Multiple vulnerabilities in the Link Layer Discovery Protocol (LLDP) implementation for Cisco Video Surveillance 7000 Series IP Cameras could allow an unauthenticated, adjacent attacker to cause a memory leak, which could lead to a denial of service (DoS) condition on an affected device. These vulnerabilities are due to incorrect processing of certain LLDP packets at ingress time. An attacker could exploit these vulnerabilities by sending crafted LLDP packets to an affected device. A successful exploit could allow the attacker to cause the affected device to continuously consume memory, which could cause the device to crash and reload, resulting in a DoS condition. Note: LLDP is a Layer 2 protocol. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Video Surveillance 7000 Series IP Cameras |
Affected:
n/a
|
Date Public
2021-07-07 00:00
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CVE-2021-1595 (GCVE-0-2021-1595)
Vulnerability from cvelistv5 – Published: 2021-07-08 18:35 – Updated: 2024-11-07 22:07
VLAI
EPSS
VEX
Title
Cisco Video Surveillance 7000 Series IP Cameras Link Layer Discovery Protocol Memory Leak Vulnerabilities
Summary
Multiple vulnerabilities in the Link Layer Discovery Protocol (LLDP) implementation for Cisco Video Surveillance 7000 Series IP Cameras could allow an unauthenticated, adjacent attacker to cause a memory leak, which could lead to a denial of service (DoS) condition on an affected device. These vulnerabilities are due to incorrect processing of certain LLDP packets at ingress time. An attacker could exploit these vulnerabilities by sending crafted LLDP packets to an affected device. A successful exploit could allow the attacker to cause the affected device to continuously consume memory, which could cause the device to crash and reload, resulting in a DoS condition. Note: LLDP is a Layer 2 protocol. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Video Surveillance 7000 Series IP Cameras |
Affected:
n/a
|
Date Public
2021-07-07 00:00
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CVE-2021-1387 (GCVE-0-2021-1387)
Vulnerability from cvelistv5 – Published: 2021-02-24 19:30 – Updated: 2024-11-08 23:37
VLAI
EPSS
VEX
Title
Cisco NX-OS Software IPv6 Netstack Denial of Service Vulnerability
Summary
A vulnerability in the network stack of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability exists because the software improperly releases resources when it processes certain IPv6 packets that are destined to an affected device. An attacker could exploit this vulnerability by sending multiple crafted IPv6 packets to an affected device. A successful exploit could cause the network stack to run out of available buffers, impairing operations of control plane and management plane protocols and resulting in a DoS condition. Manual intervention would be required to restore normal operations on the affected device. For more information about the impact of this vulnerability, see the Details section of this advisory.
Severity
8.6 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco NX-OS Software |
Affected:
n/a
|
Date Public
2021-02-24 00:00
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CVE-2021-1353 (GCVE-0-2021-1353)
Vulnerability from cvelistv5 – Published: 2021-01-20 20:00 – Updated: 2024-11-12 20:21
VLAI
EPSS
VEX
Title
Cisco StarOS IPv4 Denial of Service Vulnerability
Summary
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Severity
5.8 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco ASR 5000 Series Software |
Affected:
n/a
|
Date Public
2021-01-20 00:00
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CVE-2021-1229 (GCVE-0-2021-1229)
Vulnerability from cvelistv5 – Published: 2021-02-24 19:30 – Updated: 2024-11-08 23:39
VLAI
EPSS
VEX
Title
Cisco NX-OS Software ICMP Version 6 Memory Leak Denial of Service Vulnerability
Summary
A vulnerability in ICMP Version 6 (ICMPv6) processing in Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a slow system memory leak, which over time could lead to a denial of service (DoS) condition. This vulnerability is due to improper error handling when an IPv6-configured interface receives a specific type of ICMPv6 packet. An attacker could exploit this vulnerability by sending a sustained rate of crafted ICMPv6 packets to a local IPv6 address on a targeted device. A successful exploit could allow the attacker to cause a system memory leak in the ICMPv6 process on the device. As a result, the ICMPv6 process could run out of system memory and stop processing traffic. The device could then drop all ICMPv6 packets, causing traffic instability on the device. Restoring device functionality would require a device reboot.
Severity
5.8 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco NX-OS Software |
Affected:
n/a
|
Date Public
2021-02-24 00:00
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CVE-2021-0293 (GCVE-0-2021-0293)
Vulnerability from cvelistv5 – Published: 2021-07-15 20:01 – Updated: 2024-09-16 22:40
VLAI
EPSS
VEX
Title
Junos OS: Out-of-memory condition and crashes can occur after executing a certain CLI command repeatedly
Summary
A vulnerability in Juniper Networks Junos OS caused by Missing Release of Memory after Effective Lifetime leads to a memory leak each time the CLI command 'show system connections extensive' is executed. The amount of memory leaked on each execution depends on the number of TCP connections from and to the system. Repeated execution will cause more memory to leak and eventually daemons that need to allocate additionally memory and ultimately the kernel to crash, which will result in traffic loss. Continued execution of this command will cause a sustained Denial of Service (DoS) condition. An administrator can use the following CLI command to monitor for increase in memory consumption of the netstat process, if it exists: user@junos> show system processes extensive | match "username|netstat" PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU COMMAND 21181 root 100 0 5458M 4913M CPU3 2 0:59 97.27% netstat The following log message might be observed if this issue happens: kernel: %KERN-3: pid 21181 (netstat), uid 0, was killed: out of swap space This issue affects Juniper Networks Junos OS 18.2 versions prior to 18.2R2-S8, 18.2R3-S7. 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S6, 18.4R3-S7; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R2-S6, 19.3R3-S1; 19.4 versions prior to 19.4R1-S4, 19.4R2-S3, 19.4R3-S1; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2-S1, 20.2R3; 20.3 versions prior to 20.3R1-S1, 20.3R2; This issue does not affect Juniper Networks Junos OS versions prior to 18.2R1.
Severity
5.5 (Medium)
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA11195 | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Unaffected:
unspecified , < 18.2R1
(custom)
Affected: 18.3 , < 18.3R3-S4 (custom) Affected: 18.4 , < 18.4R1-S8, 18.4R2-S6, 18.4R3-S7 (custom) Affected: 19.1 , < 19.1R1-S6, 19.1R2-S2, 19.1R3-S4 (custom) Affected: 19.2 , < 19.2R1-S6, 19.2R3-S2 (custom) Affected: 19.3 , < 19.3R2-S6, 19.3R3-S1 (custom) Affected: 19.4 , < 19.4R1-S4, 19.4R2-S3, 19.4R3-S1 (custom) Affected: 20.1 , < 20.1R2 (custom) Affected: 20.2 , < 20.2R2-S1, 20.2R3 (custom) Affected: 20.3 , < 20.3R1-S1, 20.3R2 (custom) Affected: 18.2 , < 18.2R2-S8, 18.2R3-S7 (custom) |
Date Public
2021-07-14 00:00
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CVE-2021-0272 (GCVE-0-2021-0272)
Vulnerability from cvelistv5 – Published: 2021-04-22 19:37 – Updated: 2024-09-17 02:26
VLAI
EPSS
VEX
Title
Junos OS: QFX10002-32Q, QFX10002-60C, QFX10002-72Q, QFX10008, QFX10016: In EVPN-VXLAN scenarios receipt of specific genuine packets by an adjacent attacker will cause a kernel memory leak in FPC.
Summary
A kernel memory leak in QFX10002-32Q, QFX10002-60C, QFX10002-72Q, QFX10008, QFX10016 devices Flexible PIC Concentrators (FPCs) on Juniper Networks Junos OS allows an attacker to send genuine packets destined to the device to cause a Denial of Service (DoS) to the device. On QFX10002-32Q, QFX10002-60C, QFX10002-72Q devices the device will crash and restart. On QFX10008, QFX10016 devices, depending on the number of FPCs involved in an attack, one more more FPCs may crash and traffic through the device may be degraded in other ways, until the attack traffic stops. A reboot is required to restore service and clear the kernel memory. Continued receipt and processing of these genuine packets will create a sustained Denial of Service (DoS) condition. On QFX10008, QFX10016 devices, an indicator of compromise may be the existence of DCPFE core files. You can also monitor PFE memory utilization for incremental growth: user@qfx-RE:0% cprod -A fpc0 -c "show heap 0" | grep -i ke 0 3788a1b0 3221225048 2417120656 804104392 24 Kernel user@qfx-RE:0% cprod -A fpc0 -c "show heap 0" | grep -i ke 0 3788a1b0 3221225048 2332332200 888892848 27 Kernel This issue affects: Juniper Networks Junos OS on QFX10002-32Q, QFX10002-60C, QFX10002-72Q, QFX10008, QFX10016: 16.1 versions 16.1R1 and above prior to 17.3 versions prior to 17.3R3-S9; 17.4 versions prior to 17.4R3-S2; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S5; 18.3 versions prior to 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S4; 19.1 versions prior to 19.1R3-S2; 19.2 versions prior to 19.2R3; 19.3 versions prior to 19.3R3; 19.4 versions prior to 19.4R3; 20.1 versions prior to 20.1R2. This issue does not affect releases prior to Junos OS 16.1R1. This issue does not affect EX Series devices. This issue does not affect Junos OS Evolved.
Severity
6.5 (Medium)
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
- Denial of Service (DoS)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://kb.juniper.net/JSA11163 | x_refsource_MISC |
| https://kb.juniper.net/KB32854 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Unaffected:
unspecified , < 16.1R1
(custom)
Affected: 17.3 , < 17.3R3-S9 (custom) Affected: 17.4 , < 17.4R3-S2 (custom) Affected: 18.1 , < 18.1R3-S11 (custom) Affected: 18.2 , < 18.2R3-S5 (custom) Affected: 18.3 , < 18.3R3-S3 (custom) Affected: 18.4 , < 18.4R2-S5, 18.4R3-S4 (custom) Affected: 19.1 , < 19.1R3-S2 (custom) Affected: 19.2 , < 19.2R3 (custom) Affected: 19.3 , < 19.3R3 (custom) Affected: 19.4 , < 19.4R3 (custom) Affected: 20.1 , < 20.1R2 (custom) Affected: 16.1R1 , < 16.1* (custom) |
Date Public
2021-04-14 00:00
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"value": "This issue occurs in composite next hop EVPN-VXLAN scenarios, chained-composite-next-hop (CHN) being configured is not a requirement but can still affect EVPN pure type 5 with VXLAN encapsulation deployments.\n\nSee https://kb.juniper.net/KB32854 for further configuration details.\n\n\n # configure access links:\n [interfaces \u003c\u003e unit 0 family ethernet-switching interface-mode trunk]\n [interfaces \u003c\u003e unit 0 family ethernet-switching vlan-members \u003c\u003e]\n ...\n # configure the core link\n [interfaces \u003c\u003e unit 0 family inet address \u003c\u003e]\n \n # configure loopback address\n [interfaces lo0 unit 0 family inet address \u003c\u003e]\n \n # configure IRB\n [interfaces irb unit 1 family inet address \u003c\u003e]\n \n # evpn\n [protocols evpn encapsulation vxlan]\n [protocols evpn extended-vni-list \u003c\u003e]\n [routing-options router-id \u003c\u003e]\n [routing-options autonomous-system 100]\n \n [protocols bgp group pe type internal]\n [protocols bgp group pe local-address \u003c\u003e]\n [protocols bgp group pe family evpn signaling]\n [protocols bgp group pe neighbor \u003c\u003e]\n \n [protocols ospf area 0.0.0.0 interface lo0 passive]\n [protocols ospf area 0.0.0.0 interface \u003c\u003e]\n \n [switch-options route-distinguisher \u003c\u003e]\n [switch-options vrf-target target:1:1]\n [switch-options vtep-source-interface lo0.0]\n \n [vlans \u003c\u003e vlan-id \u003c\u003e]\n [vlans \u003c\u003e vxlan vni \u003c\u003e]\n [vlans \u003c\u003e l3-interface irb.1]"
}
],
"datePublic": "2021-04-14T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "A kernel memory leak in QFX10002-32Q, QFX10002-60C, QFX10002-72Q, QFX10008, QFX10016 devices Flexible PIC Concentrators (FPCs) on Juniper Networks Junos OS allows an attacker to send genuine packets destined to the device to cause a Denial of Service (DoS) to the device. On QFX10002-32Q, QFX10002-60C, QFX10002-72Q devices the device will crash and restart. On QFX10008, QFX10016 devices, depending on the number of FPCs involved in an attack, one more more FPCs may crash and traffic through the device may be degraded in other ways, until the attack traffic stops. A reboot is required to restore service and clear the kernel memory. Continued receipt and processing of these genuine packets will create a sustained Denial of Service (DoS) condition. On QFX10008, QFX10016 devices, an indicator of compromise may be the existence of DCPFE core files. You can also monitor PFE memory utilization for incremental growth: user@qfx-RE:0% cprod -A fpc0 -c \"show heap 0\" | grep -i ke 0 3788a1b0 3221225048 2417120656 804104392 24 Kernel user@qfx-RE:0% cprod -A fpc0 -c \"show heap 0\" | grep -i ke 0 3788a1b0 3221225048 2332332200 888892848 27 Kernel This issue affects: Juniper Networks Junos OS on QFX10002-32Q, QFX10002-60C, QFX10002-72Q, QFX10008, QFX10016: 16.1 versions 16.1R1 and above prior to 17.3 versions prior to 17.3R3-S9; 17.4 versions prior to 17.4R3-S2; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S5; 18.3 versions prior to 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S4; 19.1 versions prior to 19.1R3-S2; 19.2 versions prior to 19.2R3; 19.3 versions prior to 19.3R3; 19.4 versions prior to 19.4R3; 20.1 versions prior to 20.1R2. This issue does not affect releases prior to Junos OS 16.1R1. This issue does not affect EX Series devices. This issue does not affect Junos OS Evolved."
}
],
"exploits": [
{
"lang": "en",
"value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
}
],
"metrics": [
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"attackVector": "ADJACENT_NETWORK",
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"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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"description": "CWE-401 Missing Release of Memory after Effective Lifetime",
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"type": "CWE"
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},
{
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"lang": "en",
"type": "text"
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}
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"providerMetadata": {
"dateUpdated": "2021-04-22T19:37:27.000Z",
"orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
"shortName": "juniper"
},
"references": [
{
"tags": [
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],
"url": "https://kb.juniper.net/JSA11163"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://kb.juniper.net/KB32854"
}
],
"solutions": [
{
"lang": "en",
"value": "The following software releases have been updated to resolve this specific issue: 17.3R3-S9, 17.4R3-S2, 18.1R3-S11, 18.2R3-S5, 18.3R3-S3, 18.4R2-S5, 18.4R3-S4, 19.1R3-S2, 19.2R3, 19.3R3, 19.4R3, 20.1R2, 20.2R1, and all subsequent releases."
}
],
"source": {
"advisory": "JSA11163",
"defect": [
"1486614"
],
"discovery": "INTERNAL"
},
"title": "Junos OS: QFX10002-32Q, QFX10002-60C, QFX10002-72Q, QFX10008, QFX10016: In EVPN-VXLAN scenarios receipt of specific genuine packets by an adjacent attacker will cause a kernel memory leak in FPC.",
"workarounds": [
{
"lang": "en",
"value": "There are no known workarounds for this issue."
}
],
"x_generator": {
"engine": "Vulnogram 0.0.9"
},
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "sirt@juniper.net",
"DATE_PUBLIC": "2021-04-14T16:00:00.000Z",
"ID": "CVE-2021-0272",
"STATE": "PUBLIC",
"TITLE": "Junos OS: QFX10002-32Q, QFX10002-60C, QFX10002-72Q, QFX10008, QFX10016: In EVPN-VXLAN scenarios receipt of specific genuine packets by an adjacent attacker will cause a kernel memory leak in FPC."
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
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{
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"version": {
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{
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"version_value": "17.4R3-S2"
},
{
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},
{
"platform": "QFX10002-32Q, QFX10002-60C, QFX10002-72Q, QFX10008, QFX10016",
"version_affected": "\u003c",
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"version_value": "18.2R3-S5"
},
{
"platform": "QFX10002-32Q, QFX10002-60C, QFX10002-72Q, QFX10008, QFX10016",
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{
"platform": "QFX10002-32Q, QFX10002-60C, QFX10002-72Q, QFX10008, QFX10016",
"version_affected": "\u003c",
"version_name": "18.4",
"version_value": "18.4R2-S5, 18.4R3-S4"
},
{
"platform": "QFX10002-32Q, QFX10002-60C, QFX10002-72Q, QFX10008, QFX10016",
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{
"platform": "QFX10002-32Q, QFX10002-60C, QFX10002-72Q, QFX10008, QFX10016",
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{
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{
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"version_affected": "\u003c",
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"version_value": "19.4R3"
},
{
"platform": "QFX10002-32Q, QFX10002-60C, QFX10002-72Q, QFX10008, QFX10016",
"version_affected": "\u003c",
"version_name": "20.1",
"version_value": "20.1R2"
},
{
"platform": "QFX10002-32Q, QFX10002-60C, QFX10002-72Q, QFX10008, QFX10016",
"version_affected": "\u003e=",
"version_name": "16.1",
"version_value": "16.1R1"
},
{
"platform": "QFX10002-32Q, QFX10002-60C, QFX10002-72Q, QFX10008, QFX10016",
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]
}
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},
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}
]
}
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"configuration": [
{
"lang": "en",
"value": "This issue occurs in composite next hop EVPN-VXLAN scenarios, chained-composite-next-hop (CHN) being configured is not a requirement but can still affect EVPN pure type 5 with VXLAN encapsulation deployments.\n\nSee https://kb.juniper.net/KB32854 for further configuration details.\n\n\n # configure access links:\n [interfaces \u003c\u003e unit 0 family ethernet-switching interface-mode trunk]\n [interfaces \u003c\u003e unit 0 family ethernet-switching vlan-members \u003c\u003e]\n ...\n # configure the core link\n [interfaces \u003c\u003e unit 0 family inet address \u003c\u003e]\n \n # configure loopback address\n [interfaces lo0 unit 0 family inet address \u003c\u003e]\n \n # configure IRB\n [interfaces irb unit 1 family inet address \u003c\u003e]\n \n # evpn\n [protocols evpn encapsulation vxlan]\n [protocols evpn extended-vni-list \u003c\u003e]\n [routing-options router-id \u003c\u003e]\n [routing-options autonomous-system 100]\n \n [protocols bgp group pe type internal]\n [protocols bgp group pe local-address \u003c\u003e]\n [protocols bgp group pe family evpn signaling]\n [protocols bgp group pe neighbor \u003c\u003e]\n \n [protocols ospf area 0.0.0.0 interface lo0 passive]\n [protocols ospf area 0.0.0.0 interface \u003c\u003e]\n \n [switch-options route-distinguisher \u003c\u003e]\n [switch-options vrf-target target:1:1]\n [switch-options vtep-source-interface lo0.0]\n \n [vlans \u003c\u003e vlan-id \u003c\u003e]\n [vlans \u003c\u003e vxlan vni \u003c\u003e]\n [vlans \u003c\u003e l3-interface irb.1]"
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "A kernel memory leak in QFX10002-32Q, QFX10002-60C, QFX10002-72Q, QFX10008, QFX10016 devices Flexible PIC Concentrators (FPCs) on Juniper Networks Junos OS allows an attacker to send genuine packets destined to the device to cause a Denial of Service (DoS) to the device. On QFX10002-32Q, QFX10002-60C, QFX10002-72Q devices the device will crash and restart. On QFX10008, QFX10016 devices, depending on the number of FPCs involved in an attack, one more more FPCs may crash and traffic through the device may be degraded in other ways, until the attack traffic stops. A reboot is required to restore service and clear the kernel memory. Continued receipt and processing of these genuine packets will create a sustained Denial of Service (DoS) condition. On QFX10008, QFX10016 devices, an indicator of compromise may be the existence of DCPFE core files. You can also monitor PFE memory utilization for incremental growth: user@qfx-RE:0% cprod -A fpc0 -c \"show heap 0\" | grep -i ke 0 3788a1b0 3221225048 2417120656 804104392 24 Kernel user@qfx-RE:0% cprod -A fpc0 -c \"show heap 0\" | grep -i ke 0 3788a1b0 3221225048 2332332200 888892848 27 Kernel This issue affects: Juniper Networks Junos OS on QFX10002-32Q, QFX10002-60C, QFX10002-72Q, QFX10008, QFX10016: 16.1 versions 16.1R1 and above prior to 17.3 versions prior to 17.3R3-S9; 17.4 versions prior to 17.4R3-S2; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S5; 18.3 versions prior to 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S4; 19.1 versions prior to 19.1R3-S2; 19.2 versions prior to 19.2R3; 19.3 versions prior to 19.3R3; 19.4 versions prior to 19.4R3; 20.1 versions prior to 20.1R2. This issue does not affect releases prior to Junos OS 16.1R1. This issue does not affect EX Series devices. This issue does not affect Junos OS Evolved."
}
]
},
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"userInteraction": "NONE",
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}
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}
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},
"references": {
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{
"name": "https://kb.juniper.net/JSA11163",
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},
{
"name": "https://kb.juniper.net/KB32854",
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}
]
},
"solution": [
{
"lang": "en",
"value": "The following software releases have been updated to resolve this specific issue: 17.3R3-S9, 17.4R3-S2, 18.1R3-S11, 18.2R3-S5, 18.3R3-S3, 18.4R2-S5, 18.4R3-S4, 19.1R3-S2, 19.2R3, 19.3R3, 19.4R3, 20.1R2, 20.2R1, and all subsequent releases."
}
],
"source": {
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},
"work_around": [
{
"lang": "en",
"value": "There are no known workarounds for this issue."
}
]
}
}
},
"cveMetadata": {
"assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
"assignerShortName": "juniper",
"cveId": "CVE-2021-0272",
"datePublished": "2021-04-22T19:37:27.674Z",
"dateReserved": "2020-10-27T00:00:00.000Z",
"dateUpdated": "2024-09-17T02:26:24.086Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
Mitigation MIT-41
Implementation
Strategy: Libraries or Frameworks
- Choose a language or tool that provides automatic memory management, or makes manual memory management less error-prone.
- For example, glibc in Linux provides protection against free of invalid pointers.
- When using Xcode to target OS X or iOS, enable automatic reference counting (ARC) [REF-391].
- To help correctly and consistently manage memory when programming in C++, consider using a smart pointer class such as std::auto_ptr (defined by ISO/IEC ISO/IEC 14882:2003), std::shared_ptr and std::unique_ptr (specified by an upcoming revision of the C++ standard, informally referred to as C++ 1x), or equivalent solutions such as Boost.
Mitigation
Architecture and Design
Use an abstraction library to abstract away risky APIs. Not a complete solution.
Mitigation
Architecture and Design
Build and Compilation
Consider using the Boehm-Demers-Weiser garbage collector (bdwgc), which can help avoid leaks.
No CAPEC attack patterns related to this CWE.