Out-of-bounds Write Affecting gnutls package, versions <0:3.6.14-8.el8_3
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Test your applications- Snyk ID SNYK-CENTOS8-GNUTLS-2093165
- published 26 Jul 2021
- disclosed 16 Mar 2021
Introduced: 16 Mar 2021
CVE-2021-20305 Open this link in a new tabHow to fix?
Upgrade Centos:8
gnutls
to version 0:3.6.14-8.el8_3 or higher.
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 flaw was found in Nettle in versions before 3.7.2, where several Nettle signature verification functions (GOST DSA, EDDSA & ECDSA) result in the Elliptic Curve Cryptography point (ECC) multiply function being called with out-of-range scalers, possibly resulting in incorrect results. This flaw allows an attacker to force an invalid signature, causing an assertion failure or possible validation. The highest threat to this vulnerability is to confidentiality, integrity, as well as system availability.
References
- https://access.redhat.com/security/cve/CVE-2021-20305
- https://www.debian.org/security/2021/dsa-4933
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQKWVVMAIDAJ7YAA3VVO32BHLDOH2E63/
- https://security.gentoo.org/glsa/202105-31
- https://bugzilla.redhat.com/show_bug.cgi?id=1942533
- https://lists.debian.org/debian-lts-announce/2021/09/msg00008.html
- https://access.redhat.com/errata/RHSA-2021:1206
- https://security.netapp.com/advisory/ntap-20211022-0002/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQKWVVMAIDAJ7YAA3VVO32BHLDOH2E63/