Off-by-one Error Affecting glibc-devel package, versions <2.31-150300.9.12.1
Threat Intelligence
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-SLES153-GLIBCDEVEL-2643663
- published 14 Apr 2022
- disclosed 4 Feb 2022
Introduced: 4 Feb 2022
CVE-2021-3999 Open this link in a new tabHow to fix?
Upgrade SLES:15.3 glibc-devel to version 2.31-150300.9.12.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream glibc-devel package and not the glibc-devel package as distributed by SLES.
See How to fix? for SLES:15.3 relevant fixed versions and status.
A flaw was found in glibc. An off-by-one buffer overflow and underflow in getcwd() may lead to memory corruption when the size of the buffer is exactly 1. A local attacker who can control the input buffer and size passed to getcwd() in a setuid program could use this flaw to potentially execute arbitrary code and escalate their privileges on the system.
References
- https://www.suse.com/security/cve/CVE-2021-3999.html
- https://bugzilla.suse.com/1194640
- https://bugzilla.suse.com/1196024
- https://bugzilla.suse.com/1196389
- https://bugzilla.suse.com/1199869
- https://bugzilla.suse.com/1200203
- https://www.openwall.com/lists/oss-security/2022/01/24/4
- https://access.redhat.com/security/cve/CVE-2021-3999
- https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=23e0e8f5f1fb5ed150253d986ecccdc90c2dcd5e
- https://sourceware.org/bugzilla/show_bug.cgi?id=28769
- https://security-tracker.debian.org/tracker/CVE-2021-3999
- https://bugzilla.redhat.com/show_bug.cgi?id=2024637
- https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html
- https://security.netapp.com/advisory/ntap-20221104-0001/
- https://access.redhat.com/errata/RHSA-2022:0896
- https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=23e0e8f5f1fb5ed150253d986ecccdc90c2dcd5e