{"id":"CVE-2019-18348","details":"An issue was discovered in urllib2 in Python 2.x through 2.7.17 and urllib in Python 3.x through 3.8.0. CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \\r\\n (specifically in the host component of a URL) followed by an HTTP header. This is similar to the CVE-2019-9740 query string issue and the CVE-2019-9947 path string issue. (This is not exploitable when glibc has CVE-2016-10739 fixed.). This is fixed in: v2.7.18, v2.7.18rc1; v3.5.10, v3.5.10rc1; v3.6.11, v3.6.11rc1, v3.6.12; v3.7.8, v3.7.8rc1, v3.7.9; v3.8.3, v3.8.3rc1, v3.8.4, v3.8.4rc1, v3.8.5, v3.8.6, v3.8.6rc1.","aliases":["PSF-2019-7"],"modified":"2026-04-02T01:49:09.399681Z","published":"2019-10-23T17:15:12.973Z","related":["SUSE-SU-2020:0750-1","SUSE-SU-2020:0854-1","SUSE-SU-2020:1339-1","SUSE-SU-2020:1524-1","SUSE-SU-2020:3865-1","SUSE-SU-2020:3930-1","SUSE-SU-2021:0794-1","SUSE-SU-2022:4281-1","openSUSE-SU-2020:0696-1","openSUSE-SU-2020:2332-1","openSUSE-SU-2020:2333-1","openSUSE-SU-2024:11202-1","openSUSE-SU-2024:11284-1"],"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4X3HW5JRZ7GCPSR7UHJOLD7AWLTQCDVR/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A5NSAX4SC3V64PGZUPH7PRDLSON34Q5A/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JCPGLTTOBB3QEARDX4JOYURP6ELNNA2V/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M34WOYCDKTDE5KLUACE2YIEH7D37KHRX/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UESGYI5XDAHJBATEZN3MHNDUBDH47AS6/"},{"type":"REPORT","url":"https://bugs.python.org/issue30458#msg347282"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1727276"},{"type":"ARTICLE","url":"https://usn.ubuntu.com/4333-2/"},{"type":"ARTICLE","url":"https://www.oracle.com/security-alerts/cpuoct2020.html"},{"type":"ARTICLE","url":"http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00041.html"},{"type":"ARTICLE","url":"https://security.netapp.com/advisory/ntap-20191107-0004/"},{"type":"ARTICLE","url":"https://usn.ubuntu.com/4333-1/"},{"type":"ARTICLE","url":"https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"ff139a8a44d079a8261292044c82f128343fea09"},{"last_affected":"c2f86d86e6c8f5fd1ef602128b537a48f3f5c063"},{"introduced":"6046c5e0298c25515ea58abc8ab87f7413e3f743"},{"fixed":"426b022776672fdf3d71ddd98d89af341c88080f"},{"introduced":"5c4568a05a0a62b5947c55f68f9f2ecfb90a4f12"},{"fixed":"d56cd4006a1c5e07b0bf69fad9fc8e2fbf6aa855"},{"introduced":"1bf9cc509326bc42cd8cb1650eb9bf64550d817e"},{"fixed":"4b47a5b6ba66b02df9392feb97b8ead916f8c1fa"},{"introduced":"fa919fdf2583bdfead1df00e842f24f30b2a34bf"},{"fixed":"6f8c8320e9eac9bc7a7f653b43506e75916ce8e8"}],"database_specific":{"versions":[{"introduced":"2.0"},{"last_affected":"2.7.17"},{"introduced":"3.0"},{"fixed":"3.5.10"},{"introduced":"3.6.0"},{"fixed":"3.6.11"},{"introduced":"3.7.0"},{"fixed":"3.7.8"},{"introduced":"3.8.0"},{"fixed":"3.8.3"}]}}],"versions":["2.0","2.1","2.2","2.3","2.4","2.5","2.6","3.0","3.1","3.2","3.3","3.4","3.9","legacy-trunk","v2.0","v2.0.1","v2.0.1c1","v2.1","v2.1.1","v2.1.1c1","v2.1.2","v2.1.2c1","v2.1.3","v2.1a1","v2.1a2","v2.1b1","v2.1b2","v2.1c1","v2.1c2","v2.2","v2.2.1","v2.2.1c1","v2.2.1c2","v2.2.2","v2.2.2b1","v2.2.3","v2.2.3c1","v2.2a3","v2.3.1","v2.3.2","v2.3.2c1","v2.3.3","v2.3.3c1","v2.3.4","v2.3.4c1","v2.3.5","v2.3.5c1","v2.3.6","v2.3.6c1","v2.3.7","v2.3.7c1","v2.3c1","v2.3c2","v2.4","v2.4.1","v2.4.1c1","v2.4.1c2","v2.4.2","v2.4.2c1","v2.4.3","v2.4.3c1","v2.4.4","v2.4.4c1","v2.4.5","v2.4.5c1","v2.4.6","v2.4.6c1","v2.4a1","v2.4a2","v2.4a3","v2.4b1","v2.4b2","v2.4c1","v2.5","v2.5.1","v2.5.1c1","v2.5.2","v2.5.2c1","v2.5.3","v2.5.3c1","v2.5.4","v2.5.5","v2.5.5c1","v2.5.5c2","v2.5.6","v2.5.6c1","v2.5a0","v2.5a1","v2.5a2","v2.5b1","v2.5b2","v2.5b3","v2.5c1","v2.5c2","v2.6","v2.6.1","v2.6.2","v2.6.2c1","v2.6.3","v2.6.3rc1","v2.6.4","v2.6.4rc1","v2.6.4rc2","v2.6.5","v2.6.5rc1","v2.6.5rc2","v2.6.6","v2.6.6rc1","v2.6.6rc2","v2.6.7","v2.6.8","v2.6.8rc1","v2.6.8rc2","v2.6.9","v2.6.9rc1","v2.6a1","v2.6a2","v2.6a3","v2.6b1","v2.6b2","v2.6b3","v2.6rc1","v2.6rc2","v2.7","v2.7.1","v2.7.10","v2.7.10rc1","v2.7.11","v2.7.11rc1","v2.7.12","v2.7.12rc1","v2.7.13","v2.7.13rc1","v2.7.14","v2.7.14rc1","v2.7.15","v2.7.15rc1","v2.7.16","v2.7.16rc1","v2.7.17","v2.7.17rc1","v2.7.1rc1","v2.7.2","v2.7.2rc1","v2.7.3","v2.7.3rc1","v2.7.3rc2","v2.7.4","v2.7.4rc1","v2.7.5","v2.7.6","v2.7.6rc1","v2.7.7","v2.7.7rc1","v2.7.8","v2.7.9","v2.7.9rc1","v2.7a1","v2.7a2","v2.7a3","v2.7a4","v2.7b1","v2.7b2","v2.7rc1","v2.7rc2","v3.0","v3.0.1","v3.0a1","v3.0a2","v3.0a3","v3.0a4","v3.0a5","v3.0b1","v3.0b2","v3.0b3","v3.0rc1","v3.0rc2","v3.0rc3","v3.1","v3.1.1","v3.1.1rc1","v3.1.2","v3.1.2rc1","v3.1.3","v3.1.3rc1","v3.1.4","v3.1.4rc1","v3.1.5","v3.1.5rc1","v3.1.5rc2","v3.10.0","v3.10.0a1","v3.10.0a2","v3.10.0a3","v3.10.0a4","v3.10.0a5","v3.10.0a6","v3.10.0a7","v3.10.0b1","v3.10.0b2","v3.10.0b3","v3.10.0b4","v3.10.0rc1","v3.10.0rc2","v3.10.1","v3.10.10","v3.10.11","v3.10.12","v3.10.13","v3.10.14","v3.10.15","v3.10.16","v3.10.17","v3.10.18","v3.10.19","v3.10.2","v3.10.20","v3.10.3","v3.10.4","v3.10.5","v3.10.6","v3.10.7","v3.10.8","v3.10.9","v3.11.0","v3.11.0a1","v3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