CVE-2020-8492

Published: 30 January 2020

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.

Priority

Low

CVSS 3 base score: 6.5

Status

Package Release Status
python2.7
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 20.10 (Groovy Gorilla) Needs triage

Ubuntu 20.04 LTS (Focal Fossa) Needs triage

Ubuntu 18.04 LTS (Bionic Beaver)
Released (2.7.17-1~18.04ubuntu1)
Ubuntu 16.04 LTS (Xenial Xerus)
Released (2.7.12-1ubuntu0~16.04.11)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (2.7.6-8ubuntu0.6+esm5)
Ubuntu 12.04 ESM (Precise Pangolin)
Released (2.7.3-0ubuntu3.17)
python3.4
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr)
Released (3.4.3-1ubuntu1~14.04.7+esm6)
Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

python3.5
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 LTS (Xenial Xerus)
Released (3.5.2-2ubuntu0~16.04.10)
Ubuntu 14.04 ESM (Trusty Tahr) Needs triage

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

python3.6
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (3.6.9-1~18.04ubuntu1)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

Patches:
Upstream: https://github.com/python/cpython/commit/69cdeeb93e0830004a495ed854022425b93b3f3e
python3.7
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Needs triage

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

Patches:
Upstream: https://github.com/python/cpython/commit/b57a73694e26e8b2391731b5ee0b1be59437388e
python3.8
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 20.10 (Groovy Gorilla)
Released (3.8.2-1ubuntu1.1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (3.8.2-1ubuntu1.1)
Ubuntu 18.04 LTS (Bionic Beaver) Needs triage

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

Patches:
Upstream: https://github.com/python/cpython/commit/ea9e240aa02372440be8024acb110371f69c9d41