Application crash via serialized-data over-read
Published Jan 12, 2023 · Updated Apr 7, 2025
Out-of-bounds read in Bloom before 3.3.1 allows local users to crash a consuming application via crafted serialized data. The inherited bitset ReadFrom loop uses the filter's bit length instead of its word count, so trailing input reads beyond the allocated word slice. Exploitation requires an application to deserialize attacker-controlled Bloom data, and the demonstrated consequence is a runtime panic that terminates the affected process.
Summary
What happened
Out-of-bounds read in Bloom before 3.3.1 allows local users to crash a consuming application via crafted serialized data. The inherited bitset ReadFrom loop uses the filter's bit length instead of its word count, so trailing input reads beyond the allocated word slice. Exploitation requires an application to deserialize attacker-controlled Bloom data, and the demonstrated consequence is a runtime panic that terminates the affected process.
The record
- CVE
- CVE-2023-0247
- Published
- Jan 12, 2023
- Updated
- Apr 7, 2025
- Vendor
- Bits-and-Blooms
- Product
- Bloom
- Classifications
- CWE-427, T1499.004
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 12, 2023CVE publishedPublication date reported by the CVE source.
- Apr 7, 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=unspecified <3.3.1
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.
Weakness, pattern, technique
Public exploit references
- huntr.dev proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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