CVE - CVE-2012-3406

CVE-ID
CVE-2012-3406	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:GLSA-201503-04 URL:https://security.gentoo.org/glsa/201503-04 MISC:RHSA-2012:1097 URL:http://rhn.redhat.com/errata/RHSA-2012-1097.html MISC:RHSA-2012:1098 URL:http://rhn.redhat.com/errata/RHSA-2012-1098.html MISC:RHSA-2012:1185 URL:http://rhn.redhat.com/errata/RHSA-2012-1185.html MISC:RHSA-2012:1200 URL:http://rhn.redhat.com/errata/RHSA-2012-1200.html MISC:USN-1589-1 URL:http://www.ubuntu.com/usn/USN-1589-1 MISC:[oss-security] 20120711 Re: CVE request: glibc formatted printing vulnerabilities URL:http://www.openwall.com/lists/oss-security/2012/07/11/17 MISC:https://bugzilla.redhat.com/attachment.cgi?id=594722 URL:https://bugzilla.redhat.com/attachment.cgi?id=594722 MISC:https://bugzilla.redhat.com/show_bug.cgi?id=826943 URL:https://bugzilla.redhat.com/show_bug.cgi?id=826943
Assigning CNA
Red Hat, Inc.
Date Record Created
20120614	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20120614)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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