CVE-2022-41715
Memory exhaustion when compiling regular expressions in regexp/syntax
- State
- Published
- Severity
- Not scored
- Published
- Oct 14, 2022
- Updated
- Feb 13, 2025
- Reserved
- Sep 28, 2022
Description
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.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
regexp/syntaxGo standard library |
|
References
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