National Cyber-Alert System
Vulnerability Summary for CVE-2008-1685
Original release date:04/06/2008
Last revised:09/05/2008
Source:
US-CERT/NIST
Overview
gcc 4.2.0 through 4.3.0 in GNU Compiler Collection, when casts are not used, considers the sum of a pointer and an int to be greater than or equal to the pointer, which might remove length testing code that was intended as a protection mechanism against integer overflow and buffer overflow attacks.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
6.4
Exploitability Subscore:
8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type:Provides unauthorized access, Allows partial confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; Allows disruption of service
- Official Statement from Red Hat (07/24/2008)
-
The Red Hat Security Response Team is aware of this new gcc behavior and is currently working to determine what impact these changes will have on the source code processed by the compiler. These changes do not affect Red Hat Enterprise Linux 2, 3, 4, or 5.
References to Advisories, Solutions, and Tools
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US-CERT Vulnerability Note: VU#162289
Name: VU#162289
External Source: MISC
Name: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26763
