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Vulnerability Summary for CVE-2012-3410

Original release date: 08/27/2012
Last revised: 04/18/2013


Stack-based buffer overflow in lib/sh/eaccess.c in GNU Bash before 4.2 patch 33 might allow local users to bypass intended restricted shell access via a long filename in /dev/fd, which is not properly handled when expanding the /dev/fd prefix.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.6 (MEDIUM) (AV:L/AC:L/Au:N/C:P/I:P/A:P) (legend)
Impact Subscore: 6.4
Exploitability Subscore: 3.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

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External Source: MLIST
Name: [oss-security] 20120711 CVE Request: Overflow fix in bash 4.2 patch 33
External Source: MLIST
Name: [oss-security] 20120712 Re: CVE Request: Overflow fix in bash 4.2 patch 33
External Source: MLIST
Name: [oss-security] 20120712 Re: CVE Request: Overflow fix in bash 4.2 patch 33
External Source: MANDRIVA
Name: MDVSA-2012:128
External Source: SUSE
Name: openSUSE-SU-2012:0898
External Source: MISC
Name: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=681278
Type: Patch Information
External Source: CONFIRM
Name: ftp://ftp.gnu.org/pub/gnu/bash/bash-4.2-patches/bash42-033
Type: Patch Information
External Source: GENTOO
Name: GLSA-201210-05
External Source: XF
Name: bash-devfd-bo(77551)
External Source: BID
Name: 54937
External Source: SECUNIA
Name: 51086

Vulnerable software and versions

+ Configuration 1
+ OR
* cpe:/a:gnu:bash:4.2

* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

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