fkie_cve-2021-27291
Vulnerability from fkie_nvd
Published
2021-03-17 13:15
Modified
2024-11-21 05:57
Severity ?
Summary
In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| pygments | pygments | * | |
| debian | debian_linux | 9.0 | |
| debian | debian_linux | 10.0 | |
| fedoraproject | fedora | 32 | |
| fedoraproject | fedora | 33 |
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"descriptions": [
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"lang": "en",
"value": "In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service."
},
{
"lang": "es",
"value": "En pygments versi\u00f3n 1.1+, corregido en 2.7.4, los lexers usados para analizar unos lenguajes de programaci\u00f3n dependen en gran medida en expresiones regulares.\u0026#xa0;Algunas de las expresiones regulares presentan una complejidad exponencial o c\u00fabica en el peor de los casos y son vulnerables a ReDoS.\u0026#xa0;Al dise\u00f1ar una entrada maliciosa, un atacante puede causar una denegaci\u00f3n de servicio"
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"lastModified": "2024-11-21T05:57:45.667",
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}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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