CVE-2018-20406

Published: 23 December 2018

Modules/_pickle.c in Python before 3.7.1 has an integer overflow via a large LONG_BINPUT value that is mishandled during a "resize to twice the size" attempt. This issue might cause memory exhaustion, but is only relevant if the pickle format is used for serializing tens or hundreds of gigabytes of data. This issue is fixed in: v3.4.10, v3.4.10rc1; v3.5.10, v3.5.10rc1, v3.5.7, v3.5.7rc1, v3.5.8, v3.5.8rc1, v3.5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.7, v3.6.7rc1, v3.6.7rc2, v3.6.8, v3.6.8rc1, v3.6.9, v3.6.9rc1; v3.7.1, v3.7.1rc1, v3.7.1rc2, v3.7.2, v3.7.2rc1, v3.7.3, v3.7.3rc1, v3.7.4, v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1, v3.7.8, v3.7.8rc1, v3.7.9.

Priority

Low

CVSS 3 base score: 7.5

Status

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

Ubuntu 21.04 (Hirsute Hippo) Not vulnerable
(2.7.16-2)
Ubuntu 20.10 (Groovy Gorilla) Not vulnerable
(2.7.16-2)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(2.7.16-2)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(2.7.15~rc1-1ubuntu0.1)
Ubuntu 16.04 LTS (Xenial Xerus) Not vulnerable
(2.7.12-1ubuntu0~16.04.4)
Ubuntu 14.04 ESM (Trusty Tahr) Not vulnerable
(2.7.6-8ubuntu0.5)
python3.4
Launchpad, Ubuntu, Debian
Upstream
Released (3.4.2-1+deb8u2)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

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+esm2)
Patches:
Upstream: https://github.com/python/cpython/commit/4b42d575bf0fb01192b3ec54b7e224b238691527
python3.5
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.04 (Hirsute Hippo) Does not exist

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 (3.5.2-2ubuntu0~16.04.8)
Ubuntu 14.04 ESM (Trusty Tahr) Needed

Patches:
Upstream: https://github.com/python/cpython/commit/ef33dd6036aafbd3f06c1d56e2b1a81dae3da63c
python3.6
Launchpad, Ubuntu, Debian
Upstream
Released (3.6.7)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver)
Released (3.6.7-1~18.04)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Patches:
Upstream: https://github.com/python/cpython/commit/71a9c65e74a70b6ed39adc4ba81d311ac1aa2acc
python3.7
Launchpad, Ubuntu, Debian
Upstream
Released (3.7.1)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(3.7.3~rc1-1)
Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Patches:
Upstream: https://github.com/python/cpython/commit/ef4306b24c9034d6b37bb034e2ebe82e745d4b77