Vulnerability Details CVE-2012-3405
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.008
EPSS Ranking 72.4%
CVSS Severity
CVSS v2 Score 5.0
References
- http://rhn.redhat.com/errata/RHSA-2012-1098.html
- http://rhn.redhat.com/errata/RHSA-2012-1200.html
- http://www.openwall.com/lists/oss-security/2012/07/11/17
- http://www.ubuntu.com/usn/USN-1589-1
- https://bugzilla.redhat.com/show_bug.cgi?id=833704
- https://security.gentoo.org/glsa/201503-04
- https://sourceware.org/bugzilla/show_bug.cgi?id=13446
- http://rhn.redhat.com/errata/RHSA-2012-1098.html
- http://rhn.redhat.com/errata/RHSA-2012-1200.html
- http://www.openwall.com/lists/oss-security/2012/07/11/17
- http://www.ubuntu.com/usn/USN-1589-1
- https://bugzilla.redhat.com/show_bug.cgi?id=833704
- https://security.gentoo.org/glsa/201503-04
- https://sourceware.org/bugzilla/show_bug.cgi?id=13446
Products affected by CVE-2012-3405
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cpe:2.3:a:gnu:glibc:2.14
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cpe:2.3:a:redhat:enterprise_virtualization:3.0
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cpe:2.3:o:canonical:ubuntu_linux:10.04
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cpe:2.3:o:canonical:ubuntu_linux:11.04
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cpe:2.3:o:canonical:ubuntu_linux:11.10
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cpe:2.3:o:canonical:ubuntu_linux:12.04
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cpe:2.3:o:canonical:ubuntu_linux:8.04
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cpe:2.3:o:redhat:enterprise_linux:6.0