CVE-2012-3406 — Glibc vulnerability

9 documents8 sources
Severity
6.8MEDIUMNVD
CNA5.0OSV5.0
EPSS
0.9%
top 24.79%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
GNU GlibcCanonical Ubuntu LinuxRedhat Enterprise Linux+1 more
Timeline
PublishedFeb 10
Latest updateMay 14

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 vul…

CVSS vector

AV:N/AC:M/C:P/I:P/A:PExploitability: 8.6 | Impact: 6.4

Affected Packages3 packages

▶Debiangnu/glibc< 2.19-14+3
▶NVDgnu/glibc2.12, 2.5+1

Also affects: Ubuntu Linux 10.04, 11.04, 11.10, 12.04, 8.04, Enterprise Linux 5, 6.0

🔴Vulnerability Details

3
GHSA
GHSA-8mj9-m673-h2gf: The vfprintf function in stdio-common/vfprintf↗2022-05-14
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CVEList
CVE-2012-3406: The vfprintf function in stdio-common/vfprintf↗2014-02-10
▶
OSV
CVE-2012-3406: The vfprintf function in stdio-common/vfprintf↗2014-02-10
▶

📋Vendor Advisories

3
Ubuntu
GNU C Library vulnerabilities↗2012-10-02
▶
Red Hat
glibc: printf() unbound alloca() usage in case of positional parameters + many format specs↗2012-07-11
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Debian
CVE-2012-3406: glibc - The vfprintf function in stdio-common/vfprintf.c in GNU C Library (aka glibc) 2....↗2012
▶

💬Community

2
Bugzilla
CVE-2012-3405 CVE-2012-3406 glibc various flaws [fedora-all]↗2012-07-18
▶
Bugzilla
CVE-2012-3406 glibc: printf() unbound alloca() usage in case of positional parameters + many format specs↗2012-05-31
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CVE-2012-3406 — GNU Glibc vulnerability | cvebase