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The vfprintf function in stdio-common/vfprintf.c in libc...

Moderate severity Unreviewed Published May 14, 2022 to the GitHub Advisory Database • Updated Feb 2, 2023

Package

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Affected versions

Unknown

Patched versions

Unknown

Description

The vfprintf function in stdio-common/vfprintf.c in libc in GNU C Library (aka glibc) 2.14 and other versions does not properly calculate a buffer length, which allows context-dependent attackers to bypass the FORTIFY_SOURCE format-string protection mechanism and cause a denial of service (segmentation fault and crash) via a format string with a large number of format specifiers that triggers "desynchronization within the buffer size handling," a different vulnerability than CVE-2012-3404.

References

Published by the National Vulnerability Database Feb 10, 2014
Published to the GitHub Advisory Database May 14, 2022
Last updated Feb 2, 2023

Severity

Moderate

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(71st percentile)

Weaknesses

No CWEs

CVE ID

CVE-2012-3405

GHSA ID

GHSA-fwxh-prpx-6qg8

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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