CVE-2021-35942
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.68%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 2.68% probability · 85th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190, CWE-704
- Affected
- gnu/glibc · netapp/active iq unified manager · netapp/e-series santricity os controller · netapp/hci management node · netapp/ontap select deploy administration utility · netapp/solidfire · debian/debian linux
- Source
- cve@mitre.org
References
- https://lists.debian.org/debian-lts-announce/2022/10/msg00021.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202208-24Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210827-0005/Third Party Advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=28011Issue Tracking, Third Party Advisory
- https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=5adda61f62b77384718b4c0d8336ade8f2b4b35cBroken Link
- https://sourceware.org/glibc/wiki/Security%20ExceptionsNot Applicable
- https://lists.debian.org/debian-lts-announce/2022/10/msg00021.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202208-24Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210827-0005/Third Party Advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=28011Issue Tracking, Third Party Advisory
- https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=5adda61f62b77384718b4c0d8336ade8f2b4b35cBroken Link
- https://sourceware.org/glibc/wiki/Security%20ExceptionsNot Applicable
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.