Bug 2543690 - CVE-2026-84782 chunkah: openssl: Information disclosure via DTLS handshake retransmission [fedora-all]
Summary: CVE-2026-84782 chunkah: openssl: Information disclosure via DTLS handshake re...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: chunkah
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Jonathan Lebon
QA Contact:
URL:
Whiteboard: {"flaws": ["57c69a43-7943-4481-9b6e-c...
Depends On:
Blocks: CVE-2026-84782
TreeView+ depends on / blocked
 
Reported: 2026-09-29 21:43 UTC by Marco Benatto
Modified: 2026-09-29 21:43 UTC (History)
1 user (show)

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


Attachments (Terms of Use)

Description Marco Benatto 2026-09-29 21:43:25 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.


Note You need to log in before you can comment on or make changes to this bug.