Memory disclosure via unterminated box string
Published Apr 21, 2021 · Updated Aug 4, 2024
Out-of-bounds read in GPAC before 1.0.1 allows context-dependent attackers to disclose process memory through a crafted media file. The abst_box_read parser fills a temporary heap buffer from Adobe bootstrap-box strings and passes unterminated data to strdup, which reads beyond the allocation. Processing the supplied file with MP4Box is required, and the demonstrated run aborts after the invalid read.
Summary
What happened
Out-of-bounds read in GPAC before 1.0.1 allows context-dependent attackers to disclose process memory through a crafted media file. The abst_box_read parser fills a temporary heap buffer from Adobe bootstrap-box strings and passes unterminated data to strdup, which reads beyond the allocation. Processing the supplied file with MP4Box is required, and the demonstrated run aborts after the invalid read.
The record
- CVE
- CVE-2020-23931
- Published
- Apr 21, 2021
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-125
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 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 conditions does exploitation require?
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.
Weakness, pattern, technique
Public exploit references
- abst_box_read line 109 proof-of-concept fileproof of concept · demonstrated
- abst_box_read line 155 proof-of-concept fileproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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