Home/CVE/The PTR_MANGLE implementation in the GNU C Library (aka glibc or libc6) 2.4, 2.17, and earlier, and Embedded GLIBC (EGLI
CVE

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 (EGLI

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.

MEDIUM · CVSS 5.1 EPSS 0.0756
Schedule remediation
  • EPSS percentile: top 8% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
Sigma rules0 YARA rules0

Weakness Classification

Affected Products & Versions

3
gnu glibc<= 2.17
gnu glibcall versions
gnu eglibcall versions

Scoring & Timeline

5.1
MEDIUM · CVSS v2 (legacy) · cve@mitre.org
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:H/Au:N/C:P/I:P/A:P
Published to NVD04 Oct 2013 · 05:55 PM

Vendor Advisories

4
suse-csafsuse-ru-2015_0794-1
suse-csafSUSE-SU-2015:0253-1
suse-csafSUSE-SU-2015:0439-1
suse-csafSUSE-SU-2015:0551-1
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