Bug 2569305 - CVE-2026-71199 krb5: Alteration of authentication indicators in CAMMAC container [fedora-all]
Summary: CVE-2026-71199 krb5: Alteration of authentication indicators in CAMMAC contai...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: krb5
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Julien Rische
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["812a6156-e353-4c58-a2eb-c...
Depends On:
Blocks: CVE-2026-71199
TreeView+ depends on / blocked
 
Reported: 2026-11-10 08:30 UTC by Vladimir Vasilev
Modified: 2026-11-10 08:30 UTC (History)
7 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


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Description Vladimir Vasilev 2026-11-10 08:30:05 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

In MIT krb5 release 1.14 and later (since authentication indicator support was added), an authenticated attacker can bypass authentication indicator requirements using an unkeyed checksum in the CAMMAC authdata container.


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