Common Weakness Enumeration
CWE-362
Allowed-with-ReviewConcurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Abstraction: Class · Status: Draft
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
2899 vulnerabilities reference this CWE, most recent first.
CVE-2019-3016 (GCVE-0-2019-3016)
Vulnerability from cvelistv5 – Published: 2020-01-31 19:50 – Updated: 2024-09-30 15:47
VLAI
EPSS
VEX
Summary
In a Linux KVM guest that has PV TLB enabled, a process in the guest kernel may be able to read memory locations from another process in the same guest. This problem is limit to the host running linux kernel 4.10 with a guest running linux kernel 4.16 or later. The problem mainly affects AMD processors but Intel CPUs cannot be ruled out.
Severity
6.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
13 references
| URL | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2020/01/30/4 | mailing-listx_refsource_MLIST |
| https://lore.kernel.org/lkml/1580407316-11391-1-g… | x_refsource_CONFIRM |
| https://bugzilla.redhat.com/show_bug.cgi?id=1792167 | x_refsource_CONFIRM |
| https://git.kernel.org/linus/8c6de56a42e0c657955e… | x_refsource_CONFIRM |
| https://git.kernel.org/linus/1eff70a9abd46f175def… | x_refsource_CONFIRM |
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| https://git.kernel.org/linus/b043138246a41064527c… | x_refsource_CONFIRM |
| https://git.kernel.org/linus/a6bd811f1209fe1c64c9… | x_refsource_CONFIRM |
| https://security.netapp.com/advisory/ntap-2020031… | x_refsource_CONFIRM |
| https://usn.ubuntu.com/4300-1/ | vendor-advisoryx_refsource_UBUNTU |
| https://usn.ubuntu.com/4301-1/ | vendor-advisoryx_refsource_UBUNTU |
| http://packetstormsecurity.com/files/157233/Kerne… | x_refsource_MISC |
| https://www.debian.org/security/2020/dsa-4699 | vendor-advisoryx_refsource_DEBIAN |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel |
Affected:
4.10 to 5.6
|
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CVE-2018-17244 (GCVE-0-2018-17244)
Vulnerability from cvelistv5 – Published: 2018-12-20 22:00 – Updated: 2024-08-05 10:47
VLAI
EPSS
VEX
Summary
Elasticsearch Security versions 6.4.0 to 6.4.2 contain an error in the way request headers are applied to requests when using the Active Directory, LDAP, Native, or File realms. A request may receive headers intended for another request if the same username is being authenticated concurrently; when used with run as, this can result in the request running as the incorrect user. This could allow a user to access information that they should not have access to.
Severity
No CVSS data available.
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://discuss.elastic.co/t/elastic-stack-6-4-3-… | x_refsource_MISC |
| https://www.elastic.co/community/security | x_refsource_CONFIRM |
| http://www.securityfocus.com/bid/106318 | vdb-entryx_refsource_BID |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Elastic | Elasticsearch |
Affected:
6.4.0 to 6.4.2
|
Date Public
2018-12-20 00:00
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CVE-2018-16867 (GCVE-0-2018-16867)
Vulnerability from cvelistv5 – Published: 2018-12-12 13:00 – Updated: 2024-08-05 10:32
VLAI
EPSS
VEX
Summary
A flaw was found in qemu Media Transfer Protocol (MTP) before version 3.1.0. A path traversal in the in usb_mtp_write_data function in hw/usb/dev-mtp.c due to an improper filename sanitization. When the guest device is mounted in read-write mode, this allows to read/write arbitrary files which may lead do DoS scenario OR possibly lead to code execution on the host.
Severity
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
| http://www.securityfocus.com/bid/106195 | vdb-entryx_refsource_BID |
| https://www.openwall.com/lists/oss-security/2018/… | mailing-listx_refsource_MLIST |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://usn.ubuntu.com/3923-1/ | vendor-advisoryx_refsource_UBUNTU |
Date Public
2018-12-03 00:00
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CVE-2018-10850 (GCVE-0-2018-10850)
Vulnerability from cvelistv5 – Published: 2018-06-13 20:00 – Updated: 2024-08-05 07:46
VLAI
EPSS
VEX
Summary
389-ds-base before versions 1.4.0.10, 1.3.8.3 is vulnerable to a race condition in the way 389-ds-base handles persistent search, resulting in a crash if the server is under load. An anonymous attacker could use this flaw to trigger a denial of service.
Severity
5.9 (Medium)
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2018:2757 | vendor-advisoryx_refsource_REDHAT |
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| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| [UNKNOWN] | 389-ds-base |
Affected:
389-ds-base 1.4.0.10
Affected: 389-ds-base 1.3.8.3 |
Date Public
2018-06-06 00:00
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CVE-2018-3759 (GCVE-0-2018-3759)
Vulnerability from cvelistv5 – Published: 2018-06-13 15:00 – Updated: 2024-09-16 20:26
VLAI
EPSS
VEX
Summary
private_address_check ruby gem before 0.5.0 is vulnerable to a time-of-check time-of-use (TOCTOU) race condition due to the address the socket uses not being checked. DNS entries with a TTL of 0 can trigger this case where the initial resolution is a public address but the subsequent resolution is a private address.
Severity
No CVSS data available.
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') (CWE-362)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/jtdowney/private_address_check… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| HackerOne | private_address_check ruby gem |
Affected:
0.5.0
|
Date Public
2018-05-03 00:00
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CVE-2018-1049 (GCVE-0-2018-1049)
Vulnerability from cvelistv5 – Published: 2018-02-16 21:00 – Updated: 2024-09-16 16:47
VLAI
EPSS
VEX
Summary
In systemd prior to 234 a race condition exists between .mount and .automount units such that automount requests from kernel may not be serviced by systemd resulting in kernel holding the mountpoint and any processes that try to use said mount will hang. A race condition like this may lead to denial of service, until mount points are unmounted.
Severity
No CVSS data available.
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| http://www.securitytracker.com/id/1041520 | vdb-entryx_refsource_SECTRACK |
| https://lists.debian.org/debian-lts-announce/2018… | mailing-listx_refsource_MLIST |
| https://access.redhat.com/errata/RHSA-2018:0260 | vendor-advisoryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=1534701 | x_refsource_CONFIRM |
| https://usn.ubuntu.com/3558-1/ | vendor-advisoryx_refsource_UBUNTU |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat, Inc. | systemd |
Affected:
prior to 234
|
Date Public
2018-02-16 00:00
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CVE-2018-0480 (GCVE-0-2018-0480)
Vulnerability from cvelistv5 – Published: 2018-10-05 14:00 – Updated: 2024-11-26 14:37
VLAI
EPSS
VEX
Title
Cisco IOS XE Software Errdisable Denial of Service Vulnerability
Summary
A vulnerability in the errdisable per VLAN feature of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause the device to crash, leading to a denial of service (DoS) condition. The vulnerability is due to a race condition that occurs when the VLAN and port enter an errdisabled state, resulting in an incorrect state in the software. An attacker could exploit this vulnerability by sending frames that trigger the errdisable condition. A successful exploit could allow the attacker to cause the affected device to crash, leading to a DoS condition.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
| http://www.securityfocus.com/bid/105400 | vdb-entryx_refsource_BID |
| http://www.securitytracker.com/id/1041737 | vdb-entryx_refsource_SECTRACK |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco IOS XE Software |
Affected:
n/a
|
Date Public
2018-09-26 00:00
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CVE-2017-15129 (GCVE-0-2017-15129)
Vulnerability from cvelistv5 – Published: 2018-01-09 19:00 – Updated: 2024-08-05 19:50
VLAI
EPSS
VEX
Summary
A use-after-free vulnerability was found in network namespaces code affecting the Linux kernel before 4.14.11. The function get_net_ns_by_id() in net/core/net_namespace.c does not check for the net::count value after it has found a peer network in netns_ids idr, which could lead to double free and memory corruption. This vulnerability could allow an unprivileged local user to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is thought to be unlikely.
Severity
No CVSS data available.
CWE
Assigner
References
19 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Linux kernel v4.0-rc1 through v4.15-rc5 |
Affected:
Linux kernel v4.0-rc1 through v4.15-rc5
|
Date Public
2018-01-09 00:00
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CVE-2017-7543 (GCVE-0-2017-7543)
Vulnerability from cvelistv5 – Published: 2018-07-26 14:00 – Updated: 2024-08-05 16:04
VLAI
EPSS
VEX
Summary
A race-condition flaw was discovered in openstack-neutron before 7.2.0-12.1, 8.x before 8.3.0-11.1, 9.x before 9.3.1-2.1, and 10.x before 10.0.2-1.1, where, following a minor overcloud update, neutron security groups were disabled. Specifically, the following were reset to 0: net.bridge.bridge-nf-call-ip6tables and net.bridge.bridge-nf-call-iptables. The race was only triggered by an update, at which point an attacker could access exposed tenant VMs and network resources.
Severity
5.3 (Medium)
CWE
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
| https://access.redhat.com/errata/RHSA-2017:2447 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2017:2451 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2017:2450 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2017:2448 | vendor-advisoryx_refsource_REDHAT |
| http://www.securityfocus.com/bid/100237 | vdb-entryx_refsource_BID |
| https://access.redhat.com/errata/RHSA-2017:2452 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2017:2449 | vendor-advisoryx_refsource_REDHAT |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | openstack-neutron |
Affected:
openstack-neutron-10.0.2-1.1
Affected: openstack-neutron-8.3.0-11.1 Affected: openstack-neutron-9.3.1-2.1 Affected: openstack-neutron-7.2.0-12.1 |
Date Public
2017-07-21 00:00
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CVE-2017-2619 (GCVE-0-2017-2619)
Vulnerability from cvelistv5 – Published: 2018-03-12 15:00 – Updated: 2024-09-17 00:45
VLAI
EPSS
VEX
Summary
Samba before versions 4.6.1, 4.5.7 and 4.4.11 are vulnerable to a malicious client using a symlink race to allow access to areas of the server file system not exported under the share definition.
Severity
No CVSS data available.
CWE
Assigner
References
11 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2017:2778 | vendor-advisoryx_refsource_REDHAT |
| https://www.debian.org/security/2017/dsa-3816 | vendor-advisoryx_refsource_DEBIAN |
| http://www.securityfocus.com/bid/97033 | vdb-entryx_refsource_BID |
| https://www.exploit-db.com/exploits/41740/ | exploitx_refsource_EXPLOIT-DB |
| http://www.securitytracker.com/id/1038117 | vdb-entryx_refsource_SECTRACK |
| https://access.redhat.com/errata/RHSA-2017:2338 | vendor-advisoryx_refsource_REDHAT |
| https://www.samba.org/samba/security/CVE-2017-2619.html | x_refsource_CONFIRM |
| https://bugzilla.redhat.com/show_bug.cgi?id=1429472 | x_refsource_CONFIRM |
| https://access.redhat.com/errata/RHSA-2017:1265 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2017:2789 | vendor-advisoryx_refsource_REDHAT |
| https://h20566.www2.hpe.com/hpsc/doc/public/displ… | x_refsource_CONFIRM |
Impacted products
Date Public
2017-03-27 00:00
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Mitigation
Architecture and Design
In languages that support it, use synchronization primitives. Only wrap these around critical code to minimize the impact on performance.
Mitigation
Architecture and Design
Use thread-safe capabilities such as the data access abstraction in Spring.
Mitigation
Architecture and Design
- Minimize the usage of shared resources in order to remove as much complexity as possible from the control flow and to reduce the likelihood of unexpected conditions occurring.
- Additionally, this will minimize the amount of synchronization necessary and may even help to reduce the likelihood of a denial of service where an attacker may be able to repeatedly trigger a critical section (CWE-400).
Mitigation
Implementation
When using multithreading and operating on shared variables, only use thread-safe functions.
Mitigation
Implementation
Use atomic operations on shared variables. Be wary of innocent-looking constructs such as "x++". This may appear atomic at the code layer, but it is actually non-atomic at the instruction layer, since it involves a read, followed by a computation, followed by a write.
Mitigation
Implementation
Use a mutex if available, but be sure to avoid related weaknesses such as CWE-412.
Mitigation
Implementation
Avoid double-checked locking (CWE-609) and other implementation errors that arise when trying to avoid the overhead of synchronization.
Mitigation
Implementation
Disable interrupts or signals over critical parts of the code, but also make sure that the code does not go into a large or infinite loop.
Mitigation
Implementation
Use the volatile type modifier for critical variables to avoid unexpected compiler optimization or reordering. This does not necessarily solve the synchronization problem, but it can help.
Mitigation MIT-17
Architecture and Design
Operation
Strategy: Environment Hardening
Run your code using the lowest privileges that are required to accomplish the necessary tasks [REF-76]. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations.
CAPEC-26: Leveraging Race Conditions
The adversary targets a race condition occurring when multiple processes access and manipulate the same resource concurrently, and the outcome of the execution depends on the particular order in which the access takes place. The adversary can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance, a race condition can occur while accessing a file: the adversary can trick the system by replacing the original file with their version and cause the system to read the malicious file.
CAPEC-29: Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions
This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. A typical example is file access. The adversary can leverage a file access race condition by "running the race", meaning that they would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the adversary could replace or modify the file, causing the application to behave unexpectedly.