Stack-based buffer overflow in lib/sh/eaccess.c in GNU Bash before 4.2...

Vulnerability Description

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.

References

• http://www.openwall.com/lists/oss-security/2012/07/11/22
• http://www.mandriva.com/security/advisories?name=MDVSA-2012:128
• https://exchange.xforce.ibmcloud.com/vulnerabilities/77551
• https://hermes.opensuse.org/messages/15227834
• http://secunia.com/advisories/51086
• http://www.openwall.com/lists/oss-security/2012/07/11/11
• http://www.securityfocus.com/bid/54937
• http://security.gentoo.org/glsa/glsa-201210-05.xml
• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=681278
• ftp://ftp.gnu.org/pub/gnu/bash/bash-4.2-patches/bash42-033
• http://www.openwall.com/lists/oss-security/2012/07/12/4