Memory disclosure via wrapped DDS bounds check
Published Feb 24, 2022 · Updated Aug 2, 2024
Out-of-bounds read in Blender before 2.83.19, 2.93.8, and 3.1 allows attackers to read process memory via a crafted DDS image. The DDS Stream.cpp mem_read functions add the requested byte count to an unsigned stream position, allowing wraparound to bypass the end-of-buffer test. A victim must open or otherwise process the file in Blender; the reported consequence is disclosure from the Blender process, not data modification.
Summary
What happened
Out-of-bounds read in Blender before 2.83.19, 2.93.8, and 3.1 allows attackers to read process memory via a crafted DDS image. The DDS Stream.cpp mem_read functions add the requested byte count to an unsigned stream position, allowing wraparound to bypass the end-of-buffer test. A victim must open or otherwise process the file in Blender; the reported consequence is disclosure from the Blender process, not data modification.
The record
- CVE
- CVE-2022-0544
- Published
- Feb 24, 2022
- Updated
- Aug 2, 2024
- Vendor
- Blender Foundation
- Product
- Blender
- Classifications
- CWE-191, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 24, 2022CVE publishedPublication date reported by the CVE source.
- Aug 2, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=Blender versions prior to 2.83.19, 2.93.8 and 3.1
What conditions does exploitation require?
What is affected?
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
- T94661 malformed DDS reproducerproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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