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PRIOn knowledge basePRION:CVE-2021-33503HistoryJun 29, 2021 - 11:15 a.m.
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2021-06-2911:15:00
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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
github.com/advisories/GHSA-q2q7-5pp4-w6pg
github.com/urllib3/urllib3/commit/2d4a3fee6de2fa45eb82169361918f759269b4ec
lists.fedoraproject.org/archives/list/[email protected]/message/6SCV7ZNAHS3E6PBFLJGENCDRDRWRZZ6W/
lists.fedoraproject.org/archives/list/[email protected]/message/FMUGWEAUYGGHTPPXT6YBD53WYXQGVV73/
security.gentoo.org/glsa/202107-36
www.oracle.com/security-alerts/cpuoct2021.html
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