Bug 2543700 - CVE-2026-84782 lief: openssl: Information disclosure via DTLS handshake retransmission [fedora-all]
Summary: CVE-2026-84782 lief: openssl: Information disclosure via DTLS handshake retra...
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Fedora
Classification: Fedora
Component: lief
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Cristian Le
QA Contact:
URL:
Whiteboard: {"flaws": ["57c69a43-7943-4481-9b6e-c...
Depends On:
Blocks: CVE-2026-84782
TreeView+ depends on / blocked
 
Reported: 2026-09-29 21:44 UTC by Marco Benatto
Modified: 2026-10-07 10:30 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2026-10-07 10:30:18 UTC
Type: ---
Embargoed:


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Description Marco Benatto 2026-09-29 21:44:48 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.

The DTLS retransmission logic does not correctly handle a handshake message write that is suspended part-way through.
The retransmitted message can be read past the message buffer and the retransmission overwrites the internal state the suspended write needs to resume correctly.

Comment 1 Cristian Le 2026-10-07 10:30:18 UTC
Same comment as https://bugzilla.redhat.com/show_bug.cgi?id=2535889#c1


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