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>> GNU C Library (glibc) "process_envvars()" Function Local Integer Overflow Vulnerability
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Title : GNU C Library (glibc) "process_envvars()" Function Local Integer Overflow Vulnerability
VUPEN ID : VUPEN/ADV-2007-2418
CVE ID : CVE-2007-3508
Rated as : Moderate Risk 
Remotely Exploitable : No
Locally Exploitable : Yes
Release Date : 2007-07-03
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A vulnerability has been identified in GNU C Library (glibc), which could be exploited by malicious users to obtain elevated privileges. This issue is caused by an integer overflow error in the "process_envvars()" [elf/rtld.c] function when processing a specially crafted "LD_HWCAP_MASK" (mask for hardware capabilities) environment variable, which could be exploited by local attackers to execute arbitrary code with elevated privileges via a setuid application linked against an affected library.
Affected Products
GNU C Library (glibc) version 2.6 and prior
Solution
VUPEN Security is not aware of any vendor-supplied patch.
References
http://www.vupen.com/english/advisories/2007/2418
Credits
Vulnerability reported by Tavis Ormandy (Gentoo Linux Security Team).
ChangeLog
2007-07-03 : Initial release
Vulnerability Management
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