CVE search · CVE-2020-8492
CVE-2020-8492
medium 6.5
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.
Details
- Status
- Modified
- Published
- Last changed
- Source
- cve@mitre.org
- Weakness
- CWE-400
Severity
| Version | Score | Vector | Source |
|---|---|---|---|
| CVSS 3.1 | medium 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
nvd@nist.govPrimary |
| CVSS 3.1 | medium 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary |
| CVSS 2.0 | high 7.1 | AV:N/AC:M/Au:N/C:N/I:N/A:C |
nvd@nist.govPrimary |
Affected products
Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.
- python · python
- opensuse · leap
- canonical · ubuntu_linux
- fedoraproject · fedora
- debian · debian_linux
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00003.htmlThird Party Advisory
- https://bugs.python.org/issue39503Issue TrackingVendor Advisory
- https://github.com/python/cpython/pull/18284PatchThird 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.htmlMailing ListThird 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.htmlExploitThird Party Advisory
- https://security.gentoo.org/glsa/202005-09Third 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
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00003.htmlThird Party Advisory
- https://bugs.python.org/issue39503Issue TrackingVendor Advisory
- https://github.com/python/cpython/pull/18284PatchThird 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.htmlMailing ListThird 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.htmlExploitThird Party Advisory
- https://security.gentoo.org/glsa/202005-09Third 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
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html