CVE-2013-4788
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…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 11.4%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 2.0
- 5.1 MEDIUMAV:N/AC:H/Au:N/C:P/I:P/A:P
- EPSS
- 11.43% probability · 96th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- gnu/glibc · gnu/eglibc
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.