Memory corruption via unchecked NDLZ4 block dimensions
Published Apr 2, 2024 · Updated Aug 1, 2024
Heap-based buffer overflow in C-Blosc2 2.13.0 through 2.13.2 allows remote attackers to corrupt memory via crafted NDLZ4 data. ndlz4_decompress reads two attacker-controlled block dimensions as unsigned values and uses their product to size an output memset without rejecting negative encodings. Exploitation requires a consuming application to decompress attacker-controlled NDLZ4 input and can crash the process or corrupt its memory.
Summary
What happened
Heap-based buffer overflow in C-Blosc2 2.13.0 through 2.13.2 allows remote attackers to corrupt memory via crafted NDLZ4 data. ndlz4_decompress reads two attacker-controlled block dimensions as unsigned values and uses their product to size an output memset without rejecting negative encodings. Exploitation requires a consuming application to decompress attacker-controlled NDLZ4 input and can crash the process or corrupt its memory.
The record
- CVE
- CVE-2024-3204
- Published
- Apr 2, 2024
- Updated
- Aug 1, 2024
- Vendor
- Blosc
- Product
- C-Blosc2
- Classifications
- CWE-122, CAPEC-92
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 2, 2024CVE publishedPublication date reported by the CVE source.
- Aug 1, 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=2.13.0
- Affected versionversion=2.13.1
- Affected versionversion=2.13.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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