Application crash via out-of-bounds sample-size read
Published Sep 21, 2021 · Updated Aug 4, 2024
Heap-based buffer overflow in GPAC 0.8.0 allows attackers to crash MP4Box during sample-size lookup in a crafted media file. In stbl_GetSampleSize, the sampleCount check does not ensure that GF_SampleSizeBox.sizes contains the indexed element before sizes[SampleNumber - 1] is read. Exploitation requires a user or automated workflow to invoke MP4Box on attacker-supplied content; the demonstrated consequence is a process abort and service interruption.
Summary
What happened
Heap-based buffer overflow in GPAC 0.8.0 allows attackers to crash MP4Box during sample-size lookup in a crafted media file. In stbl_GetSampleSize, the sampleCount check does not ensure that GF_SampleSizeBox.sizes contains the indexed element before sizes[SampleNumber - 1] is read. Exploitation requires a user or automated workflow to invoke MP4Box on attacker-supplied content; the demonstrated consequence is a process abort and service interruption.
The record
- CVE
- CVE-2020-23269
- Published
- Sep 21, 2021
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 21, 2021CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- GPAC issue 1482 proof-of-concept media fileproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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