Memory corruption via undersized Base64 output buffer
Published Mar 12, 2022 · Updated Aug 3, 2024
Heap-based buffer overflow in GPAC 2.0 allows attackers to corrupt memory when MP4Box processes a crafted media file. MP4Box's color-profile dump path allocates twice the opaque profile size, but gf_base64_encode can emit additional bytes and writes beyond that heap buffer. The flaw requires a user or automated workflow to invoke MP4Box's -diso processing on attacker-controlled media; the demonstrated result is an out-of-bounds write and process abort.
Summary
What happened
Heap-based buffer overflow in GPAC 2.0 allows attackers to corrupt memory when MP4Box processes a crafted media file. MP4Box's color-profile dump path allocates twice the opaque profile size, but gf_base64_encode can emit additional bytes and writes beyond that heap buffer. The flaw requires a user or automated workflow to invoke MP4Box's -diso processing on attacker-controlled media; the demonstrated result is an out-of-bounds write and process abort.
The record
- CVE
- CVE-2022-26967
- Published
- Mar 12, 2022
- Updated
- Aug 3, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 12, 2022CVE publishedPublication date reported by the CVE source.
- Aug 3, 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.
Public exploit references
- Proof-of-concept media file for gf_base64_encode overflowproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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