Vulnerability Report: GO-2022-1039
standard library- CVE-2022-41715
- Affects: regexp/syntax
- Published: Oct 06, 2022
- Modified: May 20, 2024
Programs which compile regular expressions from untrusted sources may be vulnerable to memory exhaustion or denial of service. The parsed regexp representation is linear in the size of the input, but in some cases the constant factor can be as high as 40,000, making relatively small regexps consume much larger amounts of memory. After fix, each regexp being parsed is limited to a 256 MB memory footprint. Regular expressions whose representation would use more space than that are rejected. Normal use of regular expressions is unaffected.
Affected Packages
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PathGo VersionsSymbols
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before go1.18.7, from go1.19.0-0 before go1.19.2
Aliases
References
- https://go.dev/issue/55949
- https://go.dev/cl/439356
- https://groups.google.com/g/golang-announce/c/xtuG5faxtaU
- https://vuln.go.dev/ID/GO-2022-1039.json
Credits
- Adam Korczynski (ADA Logics), OSS-Fuzz
Feedback
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