CVE - CVE-2021-33503

CVE-ID
CVE-2021-33503	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
An issue was discovered in urllib3 before 1.26.5. When provided with a URL containing many @ characters in the authority component, the authority regular expression exhibits catastrophic backtracking, causing a denial of service if a URL were passed as a parameter or redirected to via an HTTP redirect.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://github.com/advisories/GHSA-q2q7-5pp4-w6pg URL:https://github.com/advisories/GHSA-q2q7-5pp4-w6pg CONFIRM:https://github.com/urllib3/urllib3/commit/2d4a3fee6de2fa45eb82169361918f759269b4ec URL:https://github.com/urllib3/urllib3/commit/2d4a3fee6de2fa45eb82169361918f759269b4ec FEDORA:FEDORA-2021-9c5f3b8aae URL:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6SCV7ZNAHS3E6PBFLJGENCDRDRWRZZ6W/ FEDORA:FEDORA-2021-a6bde7ab18 URL:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FMUGWEAUYGGHTPPXT6YBD53WYXQGVV73/ GENTOO:GLSA-202107-36 URL:https://security.gentoo.org/glsa/202107-36 MISC:https://www.oracle.com/security-alerts/cpuoct2021.html URL:https://www.oracle.com/security-alerts/cpuoct2021.html
Assigning CNA
MITRE Corporation
Date Record Created
20210521	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20210521)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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