CVE-2012-3406

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.

CVSS v2.0 6.8 MEDIUM

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://rhn.redhat.com/errata/RHSA-2012-1097.html
http://www.ubuntu.com/usn/USN-1589-1
http://www.openwall.com/lists/oss-security/2012/07/11/17
https://bugzilla.redhat.com/show_bug.cgi?id=826943
https://bugzilla.redhat.com/attachment.cgi?id=594722
http://rhn.redhat.com/errata/RHSA-2012-1200.html
http://rhn.redhat.com/errata/RHSA-2012-1098.html
http://rhn.redhat.com/errata/RHSA-2012-1185.html
https://security.gentoo.org/glsa/201503-04

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux:5:::::::*
	cpe:2.3:o:redhat:enterprise_linux:6.0:::::::*
	cpe:2.3:a:redhat:enterprise_virtualization:3.0:::::::*
	cpe:2.3:a:gnu:glibc:2.5:::::::*
	cpe:2.3:a:gnu:glibc:2.12:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:8.04:-:lts:::::*
	cpe:2.3:o:canonical:ubuntu_linux:10.04:-:lts:::::*
	cpe:2.3:o:canonical:ubuntu_linux:11.04:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:11.10:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:12.04:-:lts:::::*

Information

Published : 2014-02-10 10:15

Updated : 2019-04-22 10:48

NVD link : CVE-2012-3406

Mitre link : CVE-2012-3406

JSON object : View

CWE

CWE-264

Permissions, Privileges, and Access Controls

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Products Affected

canonical

ubuntu_linux

redhat

enterprise_virtualization
enterprise_linux

gnu

glibc

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