Bug 2543703 - CVE-2026-84782 mesa: openssl: Information disclosure via DTLS handshake retransmission [fedora-all]
Summary: CVE-2026-84782 mesa: openssl: Information disclosure via DTLS handshake retra...
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Fedora
Classification: Fedora
Component: mesa
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Adam Jackson
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["57c69a43-7943-4481-9b6e-c...
Depends On:
Blocks: CVE-2026-84782
TreeView+ depends on / blocked
 
Reported: 2026-09-29 21:45 UTC by Marco Benatto
Modified: 2026-09-30 12:02 UTC (History)
15 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2026-09-30 12:02:50 UTC
Type: ---
Embargoed:


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Description Marco Benatto 2026-09-29 21:45:20 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 José Expósito 2026-09-30 12:02:50 UTC
This bug report looks like a false positive. Mesa does not link to OpenSSL, as shown by these 2 commands returning empty results:

$ rpm -ql mesa mesa-* | xargs -I{} sh -c 'ldd "{}" 2>/dev/null' | grep -i 'ssl\|crypto'
$ rpm -qR mesa mesa-* 2>/dev/null | grep -i 'ssl\|crypto'

Therefore, this report is closed as not a bug.


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