Bug 2568288 - CVE-2026-121956 freerdp2: freerdp: Denial of Service via crafted Kerberos authentication request [fedora-all]
Summary: CVE-2026-121956 freerdp2: freerdp: Denial of Service via crafted Kerberos aut...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: freerdp2
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Neal Gompa
QA Contact:
URL:
Whiteboard: {"flaws": ["f8f5fda6-95f0-430a-b86b-e...
Depends On:
Blocks: CVE-2026-121956
TreeView+ depends on / blocked
 
Reported: 2026-11-06 15:12 UTC by Srikanth Balasubramanian
Modified: 2026-11-06 15:12 UTC (History)
4 users (show)

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


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Description Srikanth Balasubramanian 2026-11-06 15:12:32 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.

FreeRDP before 3.32.2 contains a double free in the WinPR Kerberos SSPI retrieveSomeTgt function, which installs the krb5 default realm into a target principal that has an empty realm without taking ownership of it. Unauthenticated remote clients can send a crafted NLA/CredSSP u2u TGT request whose server-name component contains '@' to corrupt the heap and crash the server process.


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