NULL Pointer Dereference Affecting gnutls package, versions *
Threat Intelligence
EPSS
0.21% (60th
percentile)
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Test your applications- Snyk ID SNYK-CENTOS8-GNUTLS-2404207
- published 17 Feb 2022
- disclosed 22 Dec 2021
Introduced: 22 Dec 2021
CVE-2021-4209 Open this link in a new tabHow to fix?
There is no fixed version for Centos:8 gnutls.
NVD Description
Note: Versions mentioned in the description apply only to the upstream gnutls package and not the gnutls package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
A NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances.
References
- https://access.redhat.com/security/cve/CVE-2021-4209
- https://bugzilla.redhat.com/show_bug.cgi?id=2044156
- https://gitlab.com/gnutls/gnutls/-/commit/3db352734472d851318944db13be73da61300568
- https://gitlab.com/gnutls/gnutls/-/issues/1306
- https://gitlab.com/gnutls/gnutls/-/merge_requests/1503
- https://security.netapp.com/advisory/ntap-20220915-0005/
CVSS Scores
version 3.1