Application crash via deep-image integer overflows
Published Apr 14, 2020 · Updated Aug 4, 2024
Out-of-bounds write in OpenEXR before 2.4.1 allows attackers to crash an application by supplying a malformed deep EXR image. The handleDeepFrameBuffer and readSampleCountForLineBlock routines use overflow-prone integer arithmetic when deriving buffer sizes and offsets, leaving a pointer outside allocated storage for a later write. Exploitation requires an application to process an attacker-supplied deep image; the published assessment bounds the demonstrated consequence to application unavailability.
Summary
What happened
Out-of-bounds write in OpenEXR before 2.4.1 allows attackers to crash an application by supplying a malformed deep EXR image. The handleDeepFrameBuffer and readSampleCountForLineBlock routines use overflow-prone integer arithmetic when deriving buffer sizes and offsets, leaving a pointer outside allocated storage for a later write. Exploitation requires an application to process an attacker-supplied deep image; the published assessment bounds the demonstrated consequence to application unavailability.
The record
- CVE
- CVE-2020-11759
- Published
- Apr 14, 2020
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-190, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 14, 2020CVE 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
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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