Application crash via out-of-bounds PNG chunk read
Published Oct 1, 2024 · Updated Mar 13, 2025
Heap-buffer over-read in cute_png 1.05 allows local users to crash a consuming application by opening a crafted PNG file. In cp_find(), a four-byte memcmp for a PNG chunk marker runs when fewer than four bytes remain, reading past the heap allocation. The application must invoke cp_load_png on attacker-controlled input; the published reproduction demonstrates an AddressSanitizer abort, not code execution.
Summary
What happened
Heap-buffer over-read in cute_png 1.05 allows local users to crash a consuming application by opening a crafted PNG file. In cp_find(), a four-byte memcmp for a PNG chunk marker runs when fewer than four bytes remain, reading past the heap allocation. The application must invoke cp_load_png on attacker-controlled input; the published reproduction demonstrates an AddressSanitizer abort, not code execution.
The record
- CVE
- CVE-2024-46264
- Published
- Oct 1, 2024
- Updated
- Mar 13, 2025
- Vendor
- Randy Gaul
- Product
- cute_png
- Classifications
- CWE-787, CWE-122, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 1, 2024CVE publishedPublication date reported by the CVE source.
- Mar 13, 2025Record 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=1.05
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.
Weakness, pattern, technique
Public exploit references
- sample8.png cp_find proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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