RLSA-2026:19357
- Source
- https://errata.rockylinux.org/RLSA-2026:19357
- Import Source
- https://storage.googleapis.com/resf-osv-data/RLSA-2026:19357.json
- JSON Data
- https://api.osv.dev/v1/vulns/RLSA-2026:19357
- Upstream
- Published
- 2026-05-28T15:43:06.024531Z
- Modified
- 2026-05-28T16:00:29.156730158Z
- Severity
-
- 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- Important: krb5 security update
- Details
-
Kerberos is a network authentication system, which can improve the security of your network by eliminating the insecure practice of sending passwords over the network in unencrypted form. It allows clients and servers to authenticate to each other with the help of a trusted third party, the Kerberos key distribution center (KDC).
Security Fix(es):
krb5: MIT Kerberos 5 (krb5): Denial of Service via integer underflow and out-of-bounds read (CVE-2026-40356)
krb5: MIT Kerberos 5: Denial of Service via NULL pointer dereference in NegoEx mechanism (CVE-2026-40355)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
- References
- Credits
-
-
- Rocky Enterprise Software Foundation
-
- Red Hat
-
Affected packages
Rocky Linux:9 / krb5
Package
- Name
- krb5
- Purl
- pkg:rpm/rocky-linux/krb5?distro=rocky-linux-9&epoch=0