Certain run-time memory protection mechanisms in the GNU C Library...

Vulnerability Description

Certain run-time memory protection mechanisms in the GNU C Library (aka glibc or libc6) print argv[0] and backtrace information, which might allow context-dependent attackers to obtain sensitive information from process memory by executing an incorrect program, as demonstrated by a setuid program that contains a stack-based buffer overflow error, related to the __fortify_fail function in debug/fortify_fail.c, and the __stack_chk_fail (aka stack protection) and __chk_fail (aka FORTIFY_SOURCE) implementations.

References

• http://www.openwall.com/lists/oss-security/2010/09/02/3
• http://www.openwall.com/lists/oss-security/2010/09/02/5
• http://seclists.org/fulldisclosure/2010/Apr/399
• http://www.openwall.com/lists/oss-security/2010/09/02/2
• http://www.openwall.com/lists/oss-security/2010/08/31/7
• http://www.openwall.com/lists/oss-security/2010/09/02/4
• http://www.openwall.com/lists/oss-security/2010/08/31/6
• http://www.openwall.com/lists/oss-security/2010/08/25/8