Local denial of service via timeout overflow
Published Apr 18, 2025 · Updated Apr 22, 2025
Integer overflow in Redox OS relibc 0.8.0 allows local users to interrupt service through a crafted setsockopt timeout. In src/platform/redox/socket.rs, setsockopt multiplies an untrusted timeval.tv_usec value by 1,000 without overflow checking before storing it as tv_nsec. The attack requires low-privileged local execution and a sufficiently large microsecond value; published evidence identifies denial of service but not whether the result is a crash or hang.
Summary
What happened
Integer overflow in Redox OS relibc 0.8.0 allows local users to interrupt service through a crafted setsockopt timeout. In src/platform/redox/socket.rs, setsockopt multiplies an untrusted timeval.tv_usec value by 1,000 without overflow checking before storing it as tv_nsec. The attack requires low-privileged local execution and a sufficiently large microsecond value; published evidence identifies denial of service but not whether the result is a crash or hang.
The record
- CVE
- CVE-2024-57493
- Published
- Apr 18, 2025
- Updated
- Apr 22, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-404, T1499
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 18, 2025CVE publishedPublication date reported by the CVE source.
- Apr 22, 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?
What conditions does exploitation require?
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
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
- CVE-2024-57493 setsockopt PoCproof of concept · unverified
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Technologies
Your stack
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Your stack
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