REDHAT-BUG-1260581
First published: Mon Sep 07 2015(Updated: )
A weakness in the dynamic loader has been found, making glibc of versions prior 2.22.90 affected. LD_POINTER_GUARD in the environment is not sanitizaed allowing attacker to easily bypass the pointer guarding protection on set-user-ID and set-group-ID programs. Reproducing steps available at: <a href="http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html">http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html</a> CVE request: <a href="http://seclists.org/oss-sec/2015/q3/504">http://seclists.org/oss-sec/2015/q3/504</a>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNU C Library (glibc) | <2.22.90 |
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Reference Links
- http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html
- http://seclists.org/oss-sec/2015/q3/504
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1260583
- https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commit;h=a014cecd82b71b70a6a843e250e06b541ad524f7
- http://www.openwall.com/lists/oss-security/2015/09/05/8
- https://access.redhat.com/errata/RHSA-2017:1916
- https://bugzilla.redhat.com/show_bug.cgi?id=1260581
Frequently Asked Questions
What is the severity of REDHAT-BUG-1260581?
The severity of REDHAT-BUG-1260581 is considered high due to its potential exploitation by attackers.
How do I fix REDHAT-BUG-1260581?
To fix REDHAT-BUG-1260581, upgrade your glibc to version 2.22.90 or later.
What versions of glibc are affected by REDHAT-BUG-1260581?
REDHAT-BUG-1260581 affects glibc versions prior to 2.22.90.
Who discovered REDHAT-BUG-1260581?
REDHAT-BUG-1260581 was discovered internally and documented by security researchers.
What type of vulnerability is REDHAT-BUG-1260581?
REDHAT-BUG-1260581 is a weakness in the dynamic loader that can lead to bypassing pointer protection mechanisms.
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