Integer overflow in the process_envvars function in elf/rtld.c in glibc...

Vulnerability Description

Integer overflow in the process_envvars function in elf/rtld.c in glibc before 2.5-rc4 might allow local users to execute arbitrary code via a large LD_HWCAP_MASK environment variable value. NOTE: the glibc maintainers state that they do not believe that this issue is exploitable for code execution

References

• http://www.securityfocus.com/bid/24758
• http://bugs.gentoo.org/show_bug.cgi?id=183844
• http://www.sourceware.org/ml/libc-hacker/2007-07/msg00001.html
• http://www.vupen.com/english/advisories/2007/2418
• https://exchange.xforce.ibmcloud.com/vulnerabilities/35240
• http://osvdb.org/37901
• http://www.securitytracker.com/id?1018334
• http://secunia.com/advisories/25864
• http://security.gentoo.org/glsa/glsa-200707-04.xml
• http://sources.gentoo.org/viewcvs.py/gentoo/src/patchsets/glibc/2.5/1600_all_glibc-hwcap-mask-secure.patch?rev=1.1&view=markup