Integer Overflow or Wraparound Affecting glibc package, versions <2.31-13
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Test your applications- Snyk ID SNYK-DEBIAN11-GLIBC-1315335
- published 1 Jul 2021
- disclosed 22 Jul 2021
Introduced: 1 Jul 2021
CVE-2021-35942 Open this link in a new tabHow to fix?
Upgrade Debian:11 glibc to version 2.31-13 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Debian.
See How to fix? for Debian:11 relevant fixed versions and status.
The wordexp function in the GNU C Library (aka glibc) through 2.33 may crash or read arbitrary memory in parse_param (in posix/wordexp.c) when called with an untrusted, crafted pattern, potentially resulting in a denial of service or disclosure of information. This occurs because atoi was used but strtoul should have been used to ensure correct calculations.
References
- https://security-tracker.debian.org/tracker/CVE-2021-35942
- https://security.netapp.com/advisory/ntap-20210827-0005/
- https://sourceware.org/bugzilla/show_bug.cgi?id=28011
- https://sourceware.org/git/?p=glibc.git;a=commit;h=5adda61f62b77384718b4c0d8336ade8f2b4b35c
- https://sourceware.org/glibc/wiki/Security%20Exceptions
- https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html
- https://security.gentoo.org/glsa/202208-24
- https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=5adda61f62b77384718b4c0d8336ade8f2b4b35c