CVE-2013-4788

Public Exploit

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.

Category

5.1
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 7.56% Top 10%
Vendor Advisory mandriva.com Vendor Advisory gentoo.org Vendor Advisory mandriva.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://seclists.org/fulldisclosure/2015/Sep/23 mailing list
http://www.mandriva.com/security/advisories?name=MDVSA-2013:284 vendor advisory
http://www.openwall.com/lists/oss-security/2013/07/15/9 patch mailing list exploit
http://www.securityfocus.com/bid/61183 vdb entry
https://security.gentoo.org/glsa/201503-04 vendor advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2013:283 vendor advisory
http://hmarco.org/bugs/CVE-2013-4788.html patch exploit

Frequently Asked Questions

What is the severity of CVE-2013-4788?
CVE-2013-4788 has been scored as a medium severity vulnerability.
How to fix CVE-2013-4788?
To fix CVE-2013-4788, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2013-4788 being actively exploited in the wild?
It is possible that CVE-2013-4788 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~8% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.