CVE-2012-3406 - CVE House
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Status published Medium CVE-2012-3406

The vfprintf function in stdio-common/vfprintf.c in GNU C Library (aka...

Vulnerability Description

The vfprintf function in stdio-common/vfprintf.c in GNU C Library (aka glibc) 2.5, 2.12, and probably other versions does not "properly restrict the use of" the alloca function when allocating the SPECS array, which allows context-dependent attackers to bypass the FORTIFY_SOURCE format-string protection mechanism and cause a denial of service (crash) or possibly execute arbitrary code via a crafted format string using positional parameters and a large number of format specifiers, a different vulnerability than CVE-2012-3404 and CVE-2012-3405.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

glibc, enterprise virtualization, ubuntu linux, enterprise linux
Vulnerable Versions:
2.5, 2.12, 3.0, 8.04, 10.04, 11.04, 11.10, 12.04, 5, 6.0

Timeline

Official Publish: February 10th, 2014
Last Modified: August 6th, 2024
Added to House: July 19th, 2026

CVSS Vectors

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.