Common Weakness Enumeration
CWE-134
AllowedUse of Externally-Controlled Format String
Abstraction: Base · Status: Draft
The product uses a function that accepts a format string as an argument, but the format string originates from an external source.
513 vulnerabilities reference this CWE, most recent first.
CVE-2020-3118 (GCVE-0-2020-3118)
Vulnerability from cvelistv5 – Published: 2020-02-05 17:40 – Updated: 2025-10-21 23:35
VLAI
EPSS
VEX
Title
Cisco IOS XR Software Cisco Discovery Protocol Format String Vulnerability
Summary
A vulnerability in the Cisco Discovery Protocol implementation for Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to execute arbitrary code or cause a reload on an affected device. The vulnerability is due to improper validation of string input from certain fields in Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected device. A successful exploit could allow the attacker to cause a stack overflow, which could allow the attacker to execute arbitrary code with administrative privileges on an affected device. Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).
Severity
8.8 (High)
SSVC
Exploitation: active
Automatable: no
Technical Impact: total
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://packetstormsecurity.com/files/156203/Cisco… | x_refsource_MISC |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco IOS XR Software |
Affected:
unspecified , < 6.6.3
(custom)
|
Date Public
2020-02-05 00:00
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CVE-2020-1992 (GCVE-0-2020-1992)
Vulnerability from cvelistv5 – Published: 2020-04-08 18:41 – Updated: 2024-09-17 03:44
VLAI
EPSS
VEX
Title
PAN-OS on PA-7000 Series: Varrcvr daemon network-based denial of service or privilege escalation
Summary
A format string vulnerability in the Varrcvr daemon of PAN-OS on PA-7000 Series devices with a Log Forwarding Card (LFC) allows remote attackers to crash the daemon creating a denial of service condition or potentially execute code with root privileges. This issue affects Palo Alto Networks PAN-OS 9.0 versions before 9.0.7; PAN-OS 9.1 versions before 9.1.2 on PA-7000 Series devices with an LFC installed and configured. This issue requires WildFire services to be configured and enabled. This issue does not affect PAN-OS 8.1 and earlier releases. This issue does not affect any other PA Series firewalls.
Severity
8.1 (High)
CWE
- CWE-134 - Use of Externally-Controlled Format String
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.paloaltonetworks.com/CVE-2020-1992 | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Palo Alto Networks | PAN-OS |
Affected:
9.0 , < 9.0.7
(custom)
Affected: 9.1 , < 9.1.2 (custom) |
|
| Palo Alto Networks | PAN-OS |
Unaffected:
8.1.*
Unaffected: 8.0.* Unaffected: 7.1.* |
Date Public
2020-04-08 00:00
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CVE-2020-1979 (GCVE-0-2020-1979)
Vulnerability from cvelistv5 – Published: 2020-03-11 18:58 – Updated: 2024-09-17 00:10
VLAI
EPSS
VEX
Title
PAN-OS: A format string vulnerability in PAN-OS log daemon (logd) on Panorama allows local privilege escalation
Summary
A format string vulnerability in the PAN-OS log daemon (logd) on Panorama allows a network based attacker with knowledge of registered firewall devices and access to Panorama management interfaces to execute arbitrary code, bypassing the restricted shell and escalating privileges. This issue affects only PAN-OS 8.1 versions earlier than PAN-OS 8.1.13 on Panorama. This issue does not affect PAN-OS 7.1, PAN-OS 9.0, or later PAN-OS versions.
Severity
8.1 (High)
CWE
- CWE-134 - Use of Externally-Controlled Format String
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.paloaltonetworks.com/CVE-2020-1979 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Palo Alto Networks | PAN-OS |
Affected:
8.1 , < 8.1.13
(custom)
Unaffected: 9.0.0 , < 9.0* (custom) Unaffected: 7.1.0 , < 7.1* (custom) Unaffected: 9.1.0 , < 9.1* (custom) |
Date Public
2020-03-11 00:00
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CVE-2019-13318 (GCVE-0-2019-13318)
Vulnerability from cvelistv5 – Published: 2019-10-04 17:37 – Updated: 2024-08-04 23:49
VLAI
EPSS
VEX
Summary
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Foxit Reader 9.5.0.20723. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the processing of the util.printf Javascript method. The application processes the %p parameter in the format string, allowing heap addresses to be returned to the script. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process. Was ZDI-CAN-8544.
Severity
5.5 (Medium)
CWE
- CWE-134 - Use of Externally-Controlled Format String
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.foxitsoftware.com/support/security-bu… | x_refsource_MISC |
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
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CVE-2019-6840 (GCVE-0-2019-6840)
Vulnerability from cvelistv5 – Published: 2019-09-17 19:19 – Updated: 2024-08-04 20:31
VLAI
EPSS
VEX
Summary
A Format String: CWE-134 vulnerability exists in U.motion Server (MEG6501-0001 - U.motion KNX server, MEG6501-0002 - U.motion KNX Server Plus, MEG6260-0410 - U.motion KNX Server Plus, Touch 10, MEG6260-0415 - U.motion KNX Server Plus, Touch 15), which could allow an attacker to send a crafted message to the target server, thereby causing arbitrary commands to be executed.
Severity
No CVSS data available.
CWE
- CWE-134 - Format String: CWE-134
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.schneider-electric.com/ww/en/download… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Schneider Electric SE | U.motion Server |
Affected:
MEG6501-0001 - U.motion KNX server
Affected: MEG6501-0002 - U.motion KNX Server Plus Affected: MEG6260-0410 - U.motion KNX Server Plus Affected: Touch 10 Affected: MEG6260-0415 - U.motion KNX Server Plus Affected: Touch 15 |
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CVE-2017-12702 (GCVE-0-2017-12702)
Vulnerability from cvelistv5 – Published: 2017-08-30 18:00 – Updated: 2024-08-05 18:43
VLAI
EPSS
VEX
Summary
An Externally Controlled Format String issue was discovered in Advantech WebAccess versions prior to V8.2_20170817. String format specifiers based on user provided input are not properly validated, which could allow an attacker to execute arbitrary code.
Severity
No CVSS data available.
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://ics-cert.us-cert.gov/advisories/ICSA-17-241-02 | x_refsource_MISC |
| http://www.securityfocus.com/bid/100526 | vdb-entryx_refsource_BID |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Advantech WebAccess |
Affected:
Advantech WebAccess
|
Date Public
2017-08-30 00:00
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CVE-2017-7519 (GCVE-0-2017-7519)
Vulnerability from cvelistv5 – Published: 2018-07-27 14:00 – Updated: 2024-08-05 16:04
VLAI
EPSS
VEX
Summary
In Ceph, a format string flaw was found in the way libradosstriper parses input from user. A user could crash an application or service using the libradosstriper library.
Severity
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| http://www.securityfocus.com/bid/99075 | vdb-entryx_refsource_BID |
| https://www.debian.org/security/2018/dsa-4339 | vendor-advisoryx_refsource_DEBIAN |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… | x_refsource_CONFIRM |
Date Public
2017-06-09 00:00
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CVE-2017-3859 (GCVE-0-2017-3859)
Vulnerability from cvelistv5 – Published: 2017-03-22 19:00 – Updated: 2024-08-05 14:39
VLAI
EPSS
VEX
Summary
A vulnerability in the DHCP code for the Zero Touch Provisioning feature of Cisco ASR 920 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to a format string vulnerability when processing a crafted DHCP packet for Zero Touch Provisioning. An attacker could exploit this vulnerability by sending a specially crafted DHCP packet to an affected device. An exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition. This vulnerability affects Cisco ASR 920 Series Aggregation Services Routers that are running an affected release of Cisco IOS XE Software (3.13 through 3.18) and are listening on the DHCP server port. By default, the devices do not listen on the DHCP server port. Cisco Bug IDs: CSCuy56385.
Severity
No CVSS data available.
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| http://www.securitytracker.com/id/1038104 | vdb-entryx_refsource_SECTRACK |
| http://www.securityfocus.com/bid/97008 | vdb-entryx_refsource_BID |
| https://tools.cisco.com/security/center/content/C… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Cisco IOS XE Software for Cisco ASR 920 Series Routers |
Affected:
Cisco IOS XE Software for Cisco ASR 920 Series Routers
|
Date Public
2017-03-22 00:00
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CVE-2017-0898 (GCVE-0-2017-0898)
Vulnerability from cvelistv5 – Published: 2017-09-15 19:00 – Updated: 2024-09-17 01:36
VLAI
EPSS
VEX
Summary
Ruby before 2.4.2, 2.3.5, and 2.2.8 is vulnerable to a malicious format string which contains a precious specifier (*) with a huge minus value. Such situation can lead to a buffer overrun, resulting in a heap memory corruption or an information disclosure from the heap.
Severity
No CVSS data available.
CWE
- CWE-134 - Format String Vulnerability (CWE-134)
Assigner
References
13 references
| URL | Tags |
|---|---|
| https://usn.ubuntu.com/3685-1/ | vendor-advisoryx_refsource_UBUNTU |
| https://hackerone.com/reports/212241 | x_refsource_MISC |
| https://access.redhat.com/errata/RHSA-2018:0585 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2018:0378 | vendor-advisoryx_refsource_REDHAT |
| https://www.debian.org/security/2017/dsa-4031 | vendor-advisoryx_refsource_DEBIAN |
| http://www.securityfocus.com/bid/100862 | vdb-entryx_refsource_BID |
| http://www.securitytracker.com/id/1039363 | vdb-entryx_refsource_SECTRACK |
| https://access.redhat.com/errata/RHSA-2017:3485 | vendor-advisoryx_refsource_REDHAT |
| https://lists.debian.org/debian-lts-announce/2018… | mailing-listx_refsource_MLIST |
| https://access.redhat.com/errata/RHSA-2018:0583 | vendor-advisoryx_refsource_REDHAT |
| https://github.com/mruby/mruby/issues/3722 | x_refsource_MISC |
| https://www.ruby-lang.org/en/news/2017/09/14/spri… | x_refsource_MISC |
| https://security.gentoo.org/glsa/201710-18 | vendor-advisoryx_refsource_GENTOO |
Impacted products
Date Public
2017-09-15 00:00
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CVE-2015-10088 (GCVE-0-2015-10088)
Vulnerability from cvelistv5 – Published: 2023-03-05 05:00 – Updated: 2024-08-06 08:58
VLAI
EPSS
VEX
Title
ayttm proxy.c http_connect format string
Summary
A vulnerability, which was classified as critical, was found in ayttm up to 0.5.0.89. This affects the function http_connect in the library libproxy/proxy.c. The manipulation leads to format string. It is possible to initiate the attack remotely. The complexity of an attack is rather high. The exploitability is told to be difficult. The patch is named 40e04680018614a7d2b68566b261b061a0597046. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-222267.
Severity
5 (Medium)
5 (Medium)
CWE
- CWE-134 - Format String
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.222267 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.222267 | signaturepermissions-required |
| https://sourceforge.net/p/ayttm/mailman/message/3… | related |
| https://github.com/ayttm/ayttm/commit/40e04680018… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | ayttm |
Affected:
0.5.0.0
Affected: 0.5.0.1 Affected: 0.5.0.2 Affected: 0.5.0.3 Affected: 0.5.0.4 Affected: 0.5.0.5 Affected: 0.5.0.6 Affected: 0.5.0.7 Affected: 0.5.0.8 Affected: 0.5.0.9 Affected: 0.5.0.10 Affected: 0.5.0.11 Affected: 0.5.0.12 Affected: 0.5.0.13 Affected: 0.5.0.14 Affected: 0.5.0.15 Affected: 0.5.0.16 Affected: 0.5.0.17 Affected: 0.5.0.18 Affected: 0.5.0.19 Affected: 0.5.0.20 Affected: 0.5.0.21 Affected: 0.5.0.22 Affected: 0.5.0.23 Affected: 0.5.0.24 Affected: 0.5.0.25 Affected: 0.5.0.26 Affected: 0.5.0.27 Affected: 0.5.0.28 Affected: 0.5.0.29 Affected: 0.5.0.30 Affected: 0.5.0.31 Affected: 0.5.0.32 Affected: 0.5.0.33 Affected: 0.5.0.34 Affected: 0.5.0.35 Affected: 0.5.0.36 Affected: 0.5.0.37 Affected: 0.5.0.38 Affected: 0.5.0.39 Affected: 0.5.0.40 Affected: 0.5.0.41 Affected: 0.5.0.42 Affected: 0.5.0.43 Affected: 0.5.0.44 Affected: 0.5.0.45 Affected: 0.5.0.46 Affected: 0.5.0.47 Affected: 0.5.0.48 Affected: 0.5.0.49 Affected: 0.5.0.50 Affected: 0.5.0.51 Affected: 0.5.0.52 Affected: 0.5.0.53 Affected: 0.5.0.54 Affected: 0.5.0.55 Affected: 0.5.0.56 Affected: 0.5.0.57 Affected: 0.5.0.58 Affected: 0.5.0.59 Affected: 0.5.0.60 Affected: 0.5.0.61 Affected: 0.5.0.62 Affected: 0.5.0.63 Affected: 0.5.0.64 Affected: 0.5.0.65 Affected: 0.5.0.66 Affected: 0.5.0.67 Affected: 0.5.0.68 Affected: 0.5.0.69 Affected: 0.5.0.70 Affected: 0.5.0.71 Affected: 0.5.0.72 Affected: 0.5.0.73 Affected: 0.5.0.74 Affected: 0.5.0.75 Affected: 0.5.0.76 Affected: 0.5.0.77 Affected: 0.5.0.78 Affected: 0.5.0.79 Affected: 0.5.0.80 Affected: 0.5.0.81 Affected: 0.5.0.82 Affected: 0.5.0.83 Affected: 0.5.0.84 Affected: 0.5.0.85 Affected: 0.5.0.86 Affected: 0.5.0.87 Affected: 0.5.0.88 Affected: 0.5.0.89 |
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Mitigation
Requirements
Choose a language that is not subject to this flaw.
Mitigation
Implementation
Ensure that all format string functions are passed a static string which cannot be controlled by the user, and that the proper number of arguments are always sent to that function as well. If at all possible, use functions that do not support the %n operator in format strings. [REF-116] [REF-117]
Mitigation
Build and Compilation
Run compilers and linkers with high warning levels, since they may detect incorrect usage.
CAPEC-135: Format String Injection
An adversary includes formatting characters in a string input field on the target application. Most applications assume that users will provide static text and may respond unpredictably to the presence of formatting character. For example, in certain functions of the C programming languages such as printf, the formatting character %s will print the contents of a memory location expecting this location to identify a string and the formatting character %n prints the number of DWORD written in the memory. An adversary can use this to read or write to memory locations or files, or simply to manipulate the value of the resulting text in unexpected ways. Reading or writing memory may result in program crashes and writing memory could result in the execution of arbitrary code if the adversary can write to the program stack.
CAPEC-67: String Format Overflow in syslog()
This attack targets applications and software that uses the syslog() function insecurely. If an application does not explicitely use a format string parameter in a call to syslog(), user input can be placed in the format string parameter leading to a format string injection attack. Adversaries can then inject malicious format string commands into the function call leading to a buffer overflow. There are many reported software vulnerabilities with the root cause being a misuse of the syslog() function.