Crash via zero-width image array access
Published Sep 5, 2023 · Updated Aug 2, 2024
Improper array-index validation in ZPLGFA 1.1.1 allows attackers to crash a consuming process via a zero-width image. ConvertToGraphicField allocates a zero-length line from the derived width and then reads line[0], causing Go's bounds check to panic. Exploitation requires a consuming application to process an attacker-controlled image, and the CVE record disputes whether common use cases produce a security consequence.
Summary
What happened
Improper array-index validation in ZPLGFA 1.1.1 allows attackers to crash a consuming process via a zero-width image. ConvertToGraphicField allocates a zero-length line from the derived width and then reads line[0], causing Go's bounds check to panic. Exploitation requires a consuming application to process an attacker-controlled image, and the CVE record disputes whether common use cases produce a security consequence.
The record
- CVE
- CVE-2023-36307
- Published
- Sep 5, 2023
- Updated
- Aug 2, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-129, T1499.004
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 5, 2023CVE 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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What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
- Zero-width image crash demonstrationproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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