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Vulnerability Details : 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.
Publish Date : 2014-02-10 Last Update Date : 2019-04-22
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceExecute CodeBypass a restriction or similar
CWE ID 264

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate
AV:N/AC:M/Au:N/C:P/I:P/A:P 2012-05-11 2012-07-11
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- Related OVAL Definitions

Title Definition Id Class Family
DEPRECATED: ELSA-2012-1097 -- glibc security and bug fix update (moderate) oval:org.mitre.oval:def:27845 unix
DEPRECATED: ELSA-2012-1098 -- glibc security and bug fix update (moderate) oval:org.mitre.oval:def:27827 unix
ELSA-2012:1097: glibc security and bug fix update (Moderate) oval:org.mitre.oval:def:22825 unix
ELSA-2012:1098: glibc security and bug fix update (Moderate) oval:org.mitre.oval:def:23014 unix
RHSA-2012:1097: glibc security and bug fix update (Moderate) oval:com.redhat.rhsa:def:20121097 unix
RHSA-2012:1097: glibc security and bug fix update (Moderate) oval:org.mitre.oval:def:21515 unix
RHSA-2012:1098: glibc security and bug fix update (Moderate) oval:org.mitre.oval:def:21252 unix
RHSA-2012:1098: glibc security and bug fix update (Moderate) oval:com.redhat.rhsa:def:20121098 unix
SUSE-SU-2013:1251-1 -- Security update for glibc oval:org.mitre.oval:def:25868 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2012-3406

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 8.04 - LTS Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 10.04 - LTS Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 11.04 Version Details Vulnerabilities
4 OS Canonical Ubuntu Linux 11.10 Version Details Vulnerabilities
5 OS Canonical Ubuntu Linux 12.04 - LTS Version Details Vulnerabilities
6 Application GNU Glibc 2.5 Version Details Vulnerabilities
7 Application GNU Glibc 2.12 Version Details Vulnerabilities
8 OS Redhat Enterprise Linux 5 Version Details Vulnerabilities
9 OS Redhat Enterprise Linux 6.0 Version Details Vulnerabilities
10 Application Redhat Enterprise Virtualization 3.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 5
GNU Glibc 2
Redhat Enterprise Linux 2
Redhat Enterprise Virtualization 1

- References For CVE-2012-3406 CONFIRM CONFIRM
REDHAT RHSA-2012:1098
REDHAT RHSA-2012:1185
REDHAT RHSA-2012:1200
MLIST [oss-security] 20120711 Re: CVE request: glibc formatted printing vulnerabilities
REDHAT RHSA-2012:1097
GENTOO GLSA-201503-04

- Metasploit Modules Related To CVE-2012-3406

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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