Improper input validation in GNU Eglibc
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 execution flow by leveraging a buffer-overflow vulnerability in an application and using the known zero value pointer guard to calculate a pointer address.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.114 (95.6th percentile) — read the EPSS interpretation.
Affected products
- Gnu Eglibc
- Gnu Glibc — versions 2.0, 2.0.1, 2.0.2
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (mailing-list, x_refsource_FULLDISC)
- cve@mitre.org (vendor-advisory, x_refsource_MANDRIVA)
- cve@mitre.org (mailing-list, x_refsource_MLIST, Exploit, Patch)
- cve@mitre.org (vdb-entry, x_refsource_BID)
- cve@mitre.org (vendor-advisory, x_refsource_GENTOO)
- cve@mitre.org (vendor-advisory, x_refsource_MANDRIVA)
- cve@mitre.org (Exploit, Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2013-4788?
- CVE-2013-4788 is a vulnerability in GNU Eglibc, classified under Improper Input Validation. Published 2013-10-04.
- Is CVE-2013-4788 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.