Bug 2510582 - CVE-2026-66039 qt6-qtwebengine: FFmpeg: Arbitrary code execution via crafted CAF file [epel-all]
Summary: CVE-2026-66039 qt6-qtwebengine: FFmpeg: Arbitrary code execution via crafted ...
Keywords:
Status: NEW
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: qt6-qtwebengine
Version: epel10
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Troy Dawson
QA Contact:
URL:
Whiteboard: {"flaws": ["5c18141e-7d72-48bf-b327-f...
Depends On:
Blocks: CVE-2026-66039
TreeView+ depends on / blocked
 
Reported: 2026-08-03 10:08 UTC by Marian Rehak
Modified: 2026-08-03 10:08 UTC (History)
3 users (show)

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


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Description Marian Rehak 2026-08-03 10:08:22 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.

FFmpeg through 8.1.2, fixed in commit aafb5c6, contains a signed integer overflow vulnerability in the MACE6 audio decoder that allows attackers to corrupt heap memory by supplying a crafted CAF file with a malicious bytes_per_packet value. Attackers can craft a CAF file with oversized bytes_per_packet and frames_per_packet values in the desc chunk to trigger an integer overflow in mace_decode_frame() during output sample count computation, resulting in an undersized buffer allocation and heap out-of-bounds write that could enable code execution.


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