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.
References (6)
Core 6
Core References
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/202208-24
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210827-0005/
Issue Tracking, Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=28011
Broken Link
https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=5adda61f62b77384718b4c0d8336ade8f2b4b35c
Not Applicable
https://sourceware.org/glibc/wiki/Security%20Exceptions
Scores
CVSS v3
9.1
EPSS
0.0268
EPSS Percentile
83.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-190
CWE-704
Status
published
Products (7)
debian/debian_linux
10.0
gnu/glibc
< 2.31
netapp/active_iq_unified_manager
netapp/e-series_santricity_os_controller
11.0 - 11.70.1
netapp/hci_management_node
netapp/ontap_select_deploy_administration_utility
netapp/solidfire
Published
Jul 22, 2021
Tracked Since
Feb 18, 2026