CVE-2020-8492

Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking.
References
Link Resource
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00003.html Third Party Advisory
https://bugs.python.org/issue39503 Issue Tracking Vendor Advisory
https://github.com/python/cpython/pull/18284 Patch Third Party Advisory
https://lists.apache.org/thread.html/rdb31a608dd6758c6093fd645aea3fbf022dd25b37109b6aaea5bc0b5%40%3Ccommits.cassandra.apache.org%3E
https://lists.apache.org/thread.html/rfec113c733162b39633fd86a2d0f34bf42ac35f711b3ec1835c774da%40%3Ccommits.cassandra.apache.org%3E
https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WOKDEXLYW5UQ4S7PA7E37IITOC7C56J/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A5NSAX4SC3V64PGZUPH7PRDLSON34Q5A/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APGWEMYZIY5VHLCSZ3HD67PA5Z2UQFGH/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UESGYI5XDAHJBATEZN3MHNDUBDH47AS6/
https://python-security.readthedocs.io/vuln/urllib-basic-auth-regex.html Exploit Third Party Advisory
https://security.gentoo.org/glsa/202005-09 Third Party Advisory
https://security.netapp.com/advisory/ntap-20200221-0001/ Third Party Advisory
https://usn.ubuntu.com/4333-1/ Third Party Advisory
https://usn.ubuntu.com/4333-2/ Third Party Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:python:python:*:*:*:*:*:*:*:*
cpe:2.3:a:python:python:*:*:*:*:*:*:*:*
cpe:2.3:a:python:python:*:*:*:*:*:*:*:*
cpe:2.3:a:python:python:*:*:*:*:*:*:*:*
cpe:2.3:a:python:python:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*

Configuration 4 (hide)

OR cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*

Configuration 5 (hide)

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

History

07 Nov 2023, 03:26

Type Values Removed Values Added
References
  • {'url': 'https://lists.apache.org/thread.html/rfec113c733162b39633fd86a2d0f34bf42ac35f711b3ec1835c774da@%3Ccommits.cassandra.apache.org%3E', 'name': '[cassandra-commits] 20210816 [jira] [Updated] (CASSANDRA-16857) Security vulnerability CVE-2020-8492', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'MLIST'}
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/APGWEMYZIY5VHLCSZ3HD67PA5Z2UQFGH/', 'name': 'FEDORA-2020-98e0f0f11b', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A5NSAX4SC3V64PGZUPH7PRDLSON34Q5A/', 'name': 'FEDORA-2020-ea5bdbcc90', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UESGYI5XDAHJBATEZN3MHNDUBDH47AS6/', 'name': 'FEDORA-2020-8bdd3fd7a4', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • {'url': 'https://lists.apache.org/thread.html/rdb31a608dd6758c6093fd645aea3fbf022dd25b37109b6aaea5bc0b5@%3Ccommits.cassandra.apache.org%3E', 'name': '[cassandra-commits] 20210816 [jira] [Created] (CASSANDRA-16857) Security vulnerability CVE-2020-8492', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'MLIST'}
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7WOKDEXLYW5UQ4S7PA7E37IITOC7C56J/', 'name': 'FEDORA-2020-6a88dad4a0', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A5NSAX4SC3V64PGZUPH7PRDLSON34Q5A/ -
  • () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/APGWEMYZIY5VHLCSZ3HD67PA5Z2UQFGH/ -
  • () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7WOKDEXLYW5UQ4S7PA7E37IITOC7C56J/ -
  • () https://lists.apache.org/thread.html/rfec113c733162b39633fd86a2d0f34bf42ac35f711b3ec1835c774da%40%3Ccommits.cassandra.apache.org%3E -
  • () https://lists.apache.org/thread.html/rdb31a608dd6758c6093fd645aea3fbf022dd25b37109b6aaea5bc0b5%40%3Ccommits.cassandra.apache.org%3E -
  • () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UESGYI5XDAHJBATEZN3MHNDUBDH47AS6/ -

24 May 2023, 21:15

Type Values Removed Values Added
References
  • (MLIST) https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html -

16 Sep 2021, 15:46

Type Values Removed Values Added
CPE cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
References
  • (MLIST) https://lists.apache.org/thread.html/rfec113c733162b39633fd86a2d0f34bf42ac35f711b3ec1835c774da@%3Ccommits.cassandra.apache.org%3E - Mailing List, Third Party Advisory
References (GENTOO) https://security.gentoo.org/glsa/202005-09 - (GENTOO) https://security.gentoo.org/glsa/202005-09 - Third Party Advisory
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7WOKDEXLYW5UQ4S7PA7E37IITOC7C56J/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7WOKDEXLYW5UQ4S7PA7E37IITOC7C56J/ - Mailing List, Third Party Advisory
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UESGYI5XDAHJBATEZN3MHNDUBDH47AS6/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UESGYI5XDAHJBATEZN3MHNDUBDH47AS6/ - Mailing List, Third Party Advisory
References (MLIST) https://lists.apache.org/thread.html/rdb31a608dd6758c6093fd645aea3fbf022dd25b37109b6aaea5bc0b5@%3Ccommits.cassandra.apache.org%3E - (MLIST) https://lists.apache.org/thread.html/rdb31a608dd6758c6093fd645aea3fbf022dd25b37109b6aaea5bc0b5@%3Ccommits.cassandra.apache.org%3E - Mailing List, Third Party Advisory
References (MLIST) https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html - (MLIST) https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html - Mailing List, Third Party Advisory
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/APGWEMYZIY5VHLCSZ3HD67PA5Z2UQFGH/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/APGWEMYZIY5VHLCSZ3HD67PA5Z2UQFGH/ - Mailing List, Third Party Advisory
References (UBUNTU) https://usn.ubuntu.com/4333-1/ - (UBUNTU) https://usn.ubuntu.com/4333-1/ - Third Party Advisory
References (UBUNTU) https://usn.ubuntu.com/4333-2/ - (UBUNTU) https://usn.ubuntu.com/4333-2/ - Third Party Advisory
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A5NSAX4SC3V64PGZUPH7PRDLSON34Q5A/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A5NSAX4SC3V64PGZUPH7PRDLSON34Q5A/ - Mailing List, Third Party Advisory

16 Aug 2021, 16:15

Type Values Removed Values Added
References
  • (MLIST) https://lists.apache.org/thread.html/rdb31a608dd6758c6093fd645aea3fbf022dd25b37109b6aaea5bc0b5@%3Ccommits.cassandra.apache.org%3E -

Information

Published : 2020-01-30 19:15

Updated : 2023-12-10 13:13


NVD link : CVE-2020-8492

Mitre link : CVE-2020-8492

CVE.ORG link : CVE-2020-8492


JSON object : View

Products Affected

python

  • python

opensuse

  • leap

debian

  • debian_linux

canonical

  • ubuntu_linux

fedoraproject

  • fedora
CWE
CWE-400

Uncontrolled Resource Consumption