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CVE-2022-48434

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Date: March 28, 2023

libavcodec/pthread_frame.c in FFmpeg before 5.1.2, as used in VLC and other products, leaves stale hwaccel state in worker threads, which allows attackers to trigger a use-after-free and execute arbitrary code in some circumstances (e.g., hardware re-initialization upon a mid-video SPS change when Direct3D11 is used).

Language: C

Severity Score

Related Resources (12)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PQHNSWXFUN3VJ3AO2AEJUK3BURSGM5G2/
https://nvd.nist.gov/vuln/detail/CVE-2022-48434
https://security-tracker.debian.org/tracker/CVE-2022-48434
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KOMB6WRUC55VWV25IKJTV22KARBUGWGQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KOMB6WRUC55VWV25IKJTV22KARBUGWGQ/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PQHNSWXFUN3VJ3AO2AEJUK3BURSGM5G2/
https://wrv.github.io/h26forge.pdf
https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/cc867f2c09d2b69cee8a0eccd62aff002cbbfe11
https://people.canonical.com/~ubuntu-security/cve/CVE-2022-48434
https://news.ycombinator.com/item?id=35356201
https://security.gentoo.org/glsa/202312-14
https://www.mend.io/vulnerability-database/CVE-2022-48434

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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