CVE-2012-3405

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Summary

CVECVE-2012-3405
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2014-02-10 18:15:10 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v2.0 5 from [email protected]

AV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS: 0.006660000 probability, percentile 0.713160000 (date 2026-05-04)

Problem Types: CWE-189 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 10.04 - lts All
Operating System Canonical Ubuntu Linux 11.04 All All All
Operating System Canonical Ubuntu Linux 11.10 All All All
Operating System Canonical Ubuntu Linux 12.04 - lts All
Operating System Canonical Ubuntu Linux 8.04 - lts All
Application Gnu Glibc 2.14 All All All
Operating System Redhat Enterprise Linux 6.0 All All All
Application Redhat Enterprise Virtualization 3.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com
oss-security - Re: CVE request: glibc formatted printing vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
USN-1589-1: GNU C Library vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
Gentoo Security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
13446 – (CVE-2012-3405) crash in vfprintf with more than 64 format args and format specifiers (CVE-2012-3405) af854a3a-2127-422b-91ae-364da2661108 sourceware.org
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com
833704 – (CVE-2012-3405) CVE-2012-3405 glibc: incorrect use of extend_alloca() in formatted printing can lead to FORTIFY_SOURCE format string protection bypass af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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