CVE-2020-8492

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Summary

CVECVE-2020-8492
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-01-30 19:15:00 UTC
Updated2023-11-07 03:26:00 UTC
DescriptionPython 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.

Risk And Classification

Problem Types: CWE-400

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 12.04 All All All
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 19.10 All All All
Operating System Canonical Ubuntu Linux 20.04 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Fedoraproject Fedora 31 All All All
Operating System Fedoraproject Fedora 32 All All All
Operating System Opensuse Leap 15.1 All All All
Operating System Opensuse Leap 15.1 All All All
Application Python Python All All All All
Application Python Python All All All All
Application Python Python All All All All
Application Python Python All All All All
Application Python Python All All All All

References

ReferenceSourceLinkTags
[SECURITY] [DLA 2280-1] python3.5 security update MLIST lists.debian.org
Pony Mail! lists.apache.org
[SECURITY] Fedora 32 Update: python36-3.6.11-1.fc32 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 31 Update: python36-3.6.11-1.fc31 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
Pony Mail! MLIST lists.apache.org
USN-4333-1: Python vulnerabilities | Ubuntu security notices UBUNTU usn.ubuntu.com
[SECURITY] [DLA 3432-1] python2.7 security update MLIST lists.debian.org
[SECURITY] Fedora 31 Update: python38-3.8.3-1.fc31 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
Python: Denial of Service (GLSA 202005-09) — Gentoo security GENTOO security.gentoo.org
[SECURITY] Fedora 31 Update: python38-3.8.3-1.fc31 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
USN-4333-2: Python vulnerabilities | Ubuntu security notices UBUNTU usn.ubuntu.com
urllib basic auth regex denial of service — Python Security 0.0 documentation MISC python-security.readthedocs.io Exploit, Third Party Advisory
Pony Mail! MLIST lists.apache.org
[SECURITY] Fedora 32 Update: python3-3.8.3-1.fc32 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
Pony Mail! lists.apache.org
[SECURITY] Fedora 31 Update: python36-3.6.11-1.fc31 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
bpo-39503: Fix urllib basic auth regex by vstinner · Pull Request #18284 · python/cpython · GitHub MISC github.com Patch, Third Party Advisory
CVE-2020-8492 Python Vulnerability in NetApp Products | NetApp Product Security CONFIRM security.netapp.com Third Party Advisory
[SECURITY] Fedora 32 Update: python3-3.8.3-1.fc32 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
Issue 39503: [security][CVE-2020-8492] Denial of service in urllib.request.AbstractBasicAuthHandler - Python tracker MISC bugs.python.org Issue Tracking, Vendor Advisory
[SECURITY] Fedora 32 Update: python36-3.6.11-1.fc32 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[security-announce] openSUSE-SU-2020:0274-1: moderate: Security update f SUSE lists.opensuse.org Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159654 Oracle Enterprise Linux Security Update for python38:3.8 (ELSA-2020-4641)
  • 181802 Debian Security Update for python2.7 (DLA 3432-1)
  • 198293 Ubuntu Security Notification for Python2.7, Python3.7, Python3.8 Vulnerabilities (USN-4754-3)
  • 198611 Ubuntu Security Notification for Python Vulnerabilities (USN-5200-1)
  • 296073 Oracle Solaris 11.4 Support Repository Update (SRU) 24.75.2 Missing (CPUJUL2020)
  • 356280 Amazon Linux Security Advisory for python38 : ALASPYTHON3.8-2023-006
  • 356582 Amazon Linux Security Advisory for python38 : ALAS2PYTHON3.8-2023-006
  • 376090 IBM Cognos Analytics Multiple Vulnerabilities (6491661)
  • 377257 Alibaba Cloud Linux Security Update for python3 (ALINUX2-SA-2020:0137)
  • 377387 Alibaba Cloud Linux Security Update for python3 (ALINUX3-SA-2021:0080)
  • 500591 Alpine Linux Security Update for python3
  • 504341 Alpine Linux Security Update for python3
  • 690114 Free Berkeley Software Distribution (FreeBSD) Security Update for tauthon (c7855866-c511-11eb-ae1d-b42e991fc52e)
  • 690464 Free Berkeley Software Distribution (FreeBSD) Security Update for python (2cb21232-fb32-11ea-a929-a4bf014bf5f7)
  • 750463 OpenSUSE Security Update for python3 (openSUSE-SU-2020:2333-1)
  • 750464 OpenSUSE Security Update for python3 (openSUSE-SU-2020:2332-1)
  • 752957 SUSE Enterprise Linux Security Update for python3 (SUSE-SU-2022:4281-1)
  • 770068 Red Hat OpenShift Container Platform 4.6 Security Update (RHSA-2021:0436)
  • 940166 AlmaLinux Security Update for python3 (ALSA-2020:4433)
  • 940211 AlmaLinux Security Update for python38:3.8 (ALSA-2020:4641)
  • 960347 Rocky Linux Security Update for python38:3.8 (RLSA-2020:4641)
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