National Cyber-Alert System
Vulnerability Summary for CVE-2007-3508
Original release date:07/03/2007
Last revised:09/05/2008
Source:
US-CERT/NIST
Overview
** DISPUTED ** 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.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
10.0
Exploitability Subscore:
3.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Provides administrator access, Allows complete confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; Allows disruption of service
- Official Statement from Red Hat (07/05/2007)
-
After careful analysis by Red Hat and several Glibc developers, it has been determined that this bug is not exploitable.
For more information please see Red Hat Bugzilla bug #247208
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=247208
- Official Statement from Mandriva (09/17/2007)
-
Based on the analysis of Red Hat and several Glibc developers, Mandriva does not believe this to be exploitable.
References to Advisories, Solutions, and Tools
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External Source: XF
Name: glibc-envvars-privilege-escalation(35240)
External Source: MLIST
Name: [libc-hacker] [PATCH] Fix LD_HWCAP_MASK handling
External Source: SECTRACK
Name: 1018334
External Source: BID
Name: 24758
External Source: VUPEN
Name: ADV-2007-2418
Type: Advisory
External Source: MISC
Name: http://sources.gentoo.org/viewcvs.py/gentoo/src/patchsets/glibc/2.5/1600_all_glibc-hwcap-mask-secure.patch?rev=1.1&view=markup
External Source: GENTOO
Name: GLSA-200707-04
External Source: SECUNIA
Name: 25864
Type: Advisory
External Source: CONFIRM
Name: http://bugs.gentoo.org/show_bug.cgi?id=183844