CVE-2021-35942
criticalThe 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 u…
Vendor / product: Gnu — glibc
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
9.1
9.1 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2021-07-22 18:15
Modified: 2026-10-14 12:17
NVD status: Modified
Last synced 2 days ago
Verified against the source API 2026-10-27 07:06 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
gnu / glibc <2.31
netapp / active_iq_unified_manager all versions
netapp / e-series_santricity_os_controller ≥11.0 ≤11.70.1
netapp / hci_management_node all versions
netapp / ontap_select_deploy_administration_utility all versions
netapp / solidfire all versions
debian / debian_linux 10.0
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html cve@mitre.org
- https://security.gentoo.org/glsa/202208-24 cve@mitre.org
- https://security.netapp.com/advisory/ntap-20210827-0005/ cve@mitre.org
- https://sourceware.org/bugzilla/show_bug.cgi?id=28011 cve@mitre.org
- https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=5adda61f62b77384718b4c0d8336ade8f2b... cve@mitre.org
- https://sourceware.org/glibc/wiki/Security%20Exceptions cve@mitre.org
- https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html af854a3a-2127-422b-91ae-364da2661108
- https://security.gentoo.org/glsa/202208-24 af854a3a-2127-422b-91ae-364da2661108
- https://security.netapp.com/advisory/ntap-20210827-0005/ af854a3a-2127-422b-91ae-364da2661108
- https://sourceware.org/bugzilla/show_bug.cgi?id=28011 af854a3a-2127-422b-91ae-364da2661108
- https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=5adda61f62b77384718b4c0d8336ade8f2b... af854a3a-2127-422b-91ae-364da2661108
- https://sourceware.org/glibc/wiki/Security%20Exceptions af854a3a-2127-422b-91ae-364da2661108
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
- https://cert-portal.siemens.com/productcert/html/ssa-831302.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:06 UTC · record ↗