{"id":"PSF-2018-3","summary":"difflib and poplib catastrophic backtracking","details":"python before versions 2.7.15, 3.4.9, 3.5.6rc1, 3.6.5rc1 and 3.7.0 is vulnerable to catastrophic backtracking in pop3lib's apop() method. An attacker could use this flaw to cause denial of service.","aliases":["CVE-2018-1060"],"modified":"2026-05-18T05:46:05.213079271Z","published":"2018-06-18T14:00:00Z","database_specific":{"cwe_ids":[]},"references":[{"type":"REPORT","url":"https://bugs.python.org/issue32981"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"fixed":"0902a2d6b2d1d9dbde36aeaaccf1788ceaa97143"},{"fixed":"0e6c8ee2358a2e23117501826c008842acb835ac"},{"fixed":"937ac1fe069a4dc8471dff205f553d82e724015b"},{"fixed":"942cc04ae44825ea120e3a19a80c9b348b8194d0"},{"fixed":"c9516754067d71fd7429a25ccfcb2141fc583523"},{"fixed":"e052d40cea15f582b50947f7d906b39744dc62a2"}]}],"versions":["v3.7.0b2","v3.5.5","v3.4.8","v3.5.5rc1","v3.4.8rc1","v3.7.0b1","v3.7.0a2","v3.4.7","v3.5.4","v3.5.4rc1","v3.4.7rc1","v3.6.2rc1","v3.4.6","v3.5.3","v3.5.3rc1","v3.4.6rc1","v3.6.0rc1","v2.7.13rc1","v3.6.0b4","v3.6.0b3","v3.6.0b1","v3.6.0a3","v3.4.5","v3.5.2","v3.4.5rc1","v3.5.2rc1","v2.7.12rc1","v3.5.1rc1","v2.7.11rc1","v3.5.0rc3","v3.5.0rc2","v3.5.0rc1","v3.5.0b4","v3.5.0b3","v3.5.0b1","v2.7.10rc1","v3.5.0a4","v3.5.0a3","v3.5.0a2","v3.4.3","v3.5.0a1","v3.4.3rc1","v2.7.9rc1","v3.4.2rc1","v2.7.8","v3.4.1","v3.4.1rc1","v3.4.0","v3.4.0rc3","v3.4.0rc2","v3.4.0rc1","v3.4.0b3","v3.4.0b2","v3.4.0b1","v2.7.6rc1","v3.4.0a4","v3.4.0a3","v3.4.0a2","v3.4.0a1","v2.7.5","v2.7.4rc1","v3.3.0rc3","v3.3.0rc2","v3.3.0rc1","v3.3.0b2","v3.3.0b1","v3.3.0a4","v3.3.0a3","v3.3.0a2","v2.7.3rc1","v2.7.2rc1","v2.7","v3.2rc3","v3.2rc2","v3.2rc1","v3.2b2","v3.2b1","v2.7.1","v2.7.1rc1","v3.2a4","v3.2a3","v3.2a2","v3.2a1","v2.7rc2","v2.7rc1","v2.7b2","v2.7b1","v2.7a4","v2.7a3","v2.7a2","v2.7a1","v3.1","v3.1rc2","v3.1rc1","v3.1b1","v3.1a2","v3.1a1","v3.0rc3","v3.0rc2","v2.6","v2.6rc2","v3.0rc1","v2.6rc1","v3.0b3","v2.6b3","v2.6b2","v3.0b2","v2.6b1","v3.0b1","v2.6a3","v3.0a5","v2.6a2","v3.0a4","v3.0a3","v2.6a1","v3.0a2","v3.0a1","v2.5b3","v2.5b2","v2.5b1","v2.5a2","v2.5a1","v2.5a0","v2.4","v2.4c1","v2.4b2","v2.4b1","v2.4a3","v2.4a2","v2.4a1","v2.3c2","v2.3c1","v2.2a3","v2.1","v2.1c2","v2.1c1","v2.1b2","v2.1b1","v2.1a2","v2.1a1","v2.0","v2.0c1","v2.0b2","v2.0b1","v1.6a2","v1.6a1","v1.5.2","v1.5.2c1","v1.5.2b2","v1.5.2b1","v1.5.2a2","v1.5.2a1","v1.5.1","v1.5","v1.5b2","v1.5b1","v1.5a4","v1.5a3","v1.5a2","v1.5a1","v1.4","v1.4b3","v1.4b2","v1.4b1","v1.3","v1.3b1","v1.2","v1.2b4","v1.2b3","v1.2b2","v1.2b1","v1.1.1","v1.1","v1.0.2","v1.0.1","v0.9.9","v0.9.8"],"database_specific":{"source":"https://github.com/psf/advisory-database/blob/main/advisories/python/PSF-2018-3.json"}}],"schema_version":"1.7.5"}