Remote service crash via unbounded request logging
Published Dec 30, 2023 · Updated Nov 20, 2024
Out-of-bounds read in ehttp 1.0.6 before 17405b9 allows remote attackers to crash an HTTP server with a malformed request. Request::parse_request passes attacker-controlled request bytes to the debug logger as an unbounded %s value, so _log reads beyond the 4,096-byte buffer during vprintf. Network access to an ehttp service is sufficient, and the public reproducer demonstrates process termination under AddressSanitizer.
Summary
What happened
Out-of-bounds read in ehttp 1.0.6 before 17405b9 allows remote attackers to crash an HTTP server with a malformed request. Request::parse_request passes attacker-controlled request bytes to the debug logger as an unbounded %s value, so _log reads beyond the 4,096-byte buffer during vprintf. Network access to an ehttp service is sufficient, and the public reproducer demonstrates process termination under AddressSanitizer.
The record
- CVE
- CVE-2023-52267
- Published
- Dec 30, 2023
- Updated
- Nov 20, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-125, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 30, 2023CVE publishedPublication date reported by the CVE source.
- Nov 20, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
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Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
- Issue #38 proof-of-concept scriptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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