CVE-2022-36087
In OAuthLib versions 3.1.1 until 3.2.1, an attacker providing malicious redirect uri can cause denial of service.
Does this matter?
Lower severity and a low EPSS score (1.66%). Track it; it rarely justifies an emergency change on its own.
Description
OAuthLib is an implementation of the OAuth request-signing logic for Python 3.6+. In OAuthLib versions 3.1.1 until 3.2.1, an attacker providing malicious redirect uri can cause denial of service. An attacker can also leverage usage of `uri_validate` functions depending where it is used. OAuthLib applications using OAuth2.0 provider support or use directly `uri_validate` are affected by this issue. Version 3.2.1 contains a patch. There are no known workarounds.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 1.66% probability · 75th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20, CWE-601
- Affected
- oauthlib project/oauthlib · fedoraproject/fedora
- Source
- security-advisories@github.com
References
- https://github.com/oauthlib/oauthlib/blob/2b8a44855a51ad5a5b0c348a08c2564a2e197ea2/oauthlib/uri_validate.pyExploit, Third Party Advisory
- https://github.com/oauthlib/oauthlib/blob/d4bafd9f1d0eba3766e933b1ac598cbbf37b8914/oauthlib/oauth2/rfc6749/grant_types/base.py#L232Exploit, Third Party Advisory
- https://github.com/oauthlib/oauthlib/commit/2e40b412c844ecc4673c3fa3f72181f228bdbacdPatch, Third Party Advisory
- https://github.com/oauthlib/oauthlib/releases/tag/v3.2.1Third Party Advisory
- https://github.com/oauthlib/oauthlib/security/advisories/GHSA-3pgj-pg6c-r5p7Exploit, Mitigation, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LXOPIA6M57CFQPUT6HHSNXCTV6QA3UDI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NBCQJR3ZF7FVNTJYRVPVSQEQRAYZIUHU/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QRYLYHE5HWF6R2CRLJFUK4PILR47WXOE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X2CQZM5CKOUM4GW2GTAPQEQFPITQ6F7S/
- https://github.com/oauthlib/oauthlib/blob/2b8a44855a51ad5a5b0c348a08c2564a2e197ea2/oauthlib/uri_validate.pyExploit, Third Party Advisory
- https://github.com/oauthlib/oauthlib/blob/d4bafd9f1d0eba3766e933b1ac598cbbf37b8914/oauthlib/oauth2/rfc6749/grant_types/base.py#L232Exploit, Third Party Advisory
- https://github.com/oauthlib/oauthlib/commit/2e40b412c844ecc4673c3fa3f72181f228bdbacdPatch, Third Party Advisory
- https://github.com/oauthlib/oauthlib/releases/tag/v3.2.1Third Party Advisory
- https://github.com/oauthlib/oauthlib/security/advisories/GHSA-3pgj-pg6c-r5p7Exploit, Mitigation, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LXOPIA6M57CFQPUT6HHSNXCTV6QA3UDI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NBCQJR3ZF7FVNTJYRVPVSQEQRAYZIUHU/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QRYLYHE5HWF6R2CRLJFUK4PILR47WXOE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X2CQZM5CKOUM4GW2GTAPQEQFPITQ6F7S/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.