https://github.com/cisco/openh264/security/advisories/GHSA-m99q-5j7x-7m9x
reports:
Description
-----------
A vulnerability in the decoding functions of OpenH264 codec library could
allow a remote, unauthenticated attacker to trigger a heap overflow.
This vulnerability is due to a race condition between a Sequence Parameter
Set (SPS) memory allocation and a subsequent non Instantaneous Decoder
Refresh (non-IDR) Network Abstraction Layer (NAL) unit memory usage.
An attacker could exploit this vulnerability by crafting a malicious
bitstream and tricking a victim user into processing an arbitrary video
containing the malicious bistream. An exploit could allow the attacker to
cause an unexpected crash in the victim's user decoding client and, possibly,
perform arbitrary commands on the victim's host by abusing the heap overflow.
Conditions
----------
This vulnerability affects OpenH264 2.5.0 and earlier releases.
Both Scalable Video Coding (SVC) mode and Advanced Video Coding (AVC) mode
are affected by this vulnerability
Fixed Software
--------------
OpenH264 software releases 2.6.0 and later contained the fix for this
vulnerability.
For more information
--------------------
If you have any questions or comments about this advisory:
- Open an issue in https://github.com/cisco/openh264
- Email Cisco Open Source Security (oss-secur...@cisco.com) and
Cisco PSIRT (ps...@cisco.com)
Credits:
Research: Octavian Guzu and Andrew Calvano of Meta
Fix ideation: Philipp Hancke and Shyam Sadhwani of Meta
Fix implementation: Benzheng Zhang (@BenzhengZhang)
Release engineering: Benzheng Zhang (@BenzhengZhang)
--
-Alan Coopersmith- alan.coopersm...@oracle.com
Oracle Solaris Engineering - https://blogs.oracle.com/solaris
