Description
The PTR_MANGLE implementation in the GNU C Library (aka glibc or libc6) 2.4, 2.17, and earlier, and Embedded GLIBC (EGLIBC) does not initialize the random value for the pointer guard, which makes it easier for context-dependent attackers to control execution flow by leveraging a buffer-overflow vulnerability in an application and using the known zero value pointer guard to calculate a pointer address.
Metrics
CVSS 2.0 5.1/10
AV:N/AC:H/Au:N/C:P/I:P/A:PWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://hmarco.org/bugs/CVE-2013-4788.htmlExploit, Patch
- http://seclists.org/fulldisclosure/2015/Sep/23
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:283
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:284
- http://www.openwall.com/lists/oss-security/2013/07/15/9Exploit, Patch
- http://www.securityfocus.com/bid/61183
- https://security.gentoo.org/glsa/201503-04
- http://hmarco.org/bugs/CVE-2013-4788.htmlExploit, Patch
- http://seclists.org/fulldisclosure/2015/Sep/23
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:283
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:284
- http://www.openwall.com/lists/oss-security/2013/07/15/9Exploit, Patch
- http://www.securityfocus.com/bid/61183
- https://security.gentoo.org/glsa/201503-04
Timeline
- Published
- Oct 4, 2013
- Last modified
- Jun 16, 2026
- NVD status
- Modified