ghsa-g3rq-g295-4j3m
Vulnerability from github
Published
2021-03-19 21:28
Modified
2024-09-24 20:40
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
6.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
6.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Summary
Regular Expression Denial of Service (ReDoS) in Jinja2
Details
This affects the package jinja2 from 0.0.0 and before 2.11.3. The ReDOS vulnerability of the regex is mainly due to the sub-pattern [a-zA-Z0-9.-]+.[a-zA-Z0-9.-]+ This issue can be mitigated by Markdown to format user content instead of the urlize filter, or by implementing request timeouts and limiting process memory.
{ "affected": [ { "ecosystem_specific": { "affected_functions": [ "jinja2.utils.urlize" ] }, "package": { "ecosystem": "PyPI", "name": "Jinja2" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "2.11.3" } ], "type": "ECOSYSTEM" } ] } ], "aliases": [ "CVE-2020-28493" ], "database_specific": { "cwe_ids": [ "CWE-400" ], "github_reviewed": true, "github_reviewed_at": "2021-03-13T01:08:09Z", "nvd_published_at": "2021-02-01T20:15:00Z", "severity": "MODERATE" }, "details": "This affects the package jinja2 from 0.0.0 and before 2.11.3. The ReDOS vulnerability of the regex is mainly due to the sub-pattern [a-zA-Z0-9._-]+.[a-zA-Z0-9._-]+ This issue can be mitigated by Markdown to format user content instead of the urlize filter, or by implementing request timeouts and limiting process memory.", "id": "GHSA-g3rq-g295-4j3m", "modified": "2024-09-24T20:40:19Z", "published": "2021-03-19T21:28:05Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-28493" }, { "type": "WEB", "url": "https://github.com/pallets/jinja/pull/1343" }, { "type": "WEB", "url": "https://github.com/pallets/jinja/commit/15ef8f09b659f9100610583938005a7a10472d4d" }, { "type": "ADVISORY", "url": "https://github.com/advisories/GHSA-g3rq-g295-4j3m" }, { "type": "PACKAGE", "url": "https://github.com/pallets/jinja" }, { "type": "WEB", "url": "https://github.com/pallets/jinja/blob/ab81fd9c277900c85da0c322a2ff9d68a235b2e6/src/jinja2/utils.py%23L20" }, { "type": "WEB", "url": "https://github.com/pypa/advisory-database/tree/main/vulns/jinja2/PYSEC-2021-66.yaml" }, { "type": "WEB", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PVAKCOO7VBVUBM3Q6CBBTPBFNP5NDXF4" }, { "type": "WEB", "url": "https://security.gentoo.org/glsa/202107-19" }, { "type": "WEB", "url": "https://snyk.io/vuln/SNYK-PYTHON-JINJA2-1012994" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "type": "CVSS_V3" }, { "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N", "type": "CVSS_V4" } ], "summary": "Regular Expression Denial of Service (ReDoS) in Jinja2" }
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- 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.