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.
Notes
| Author | Note |
|---|---|
| mdeslaur |
bug says 2.7 is not affected |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
python2.7
Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(2.7.15~rc1-1ubuntu0.1)
|
| cosmic |
Not vulnerable
(2.7.15-4ubuntu4)
|
|
| disco |
Not vulnerable
(2.7.16-2)
|
|
| eoan |
Not vulnerable
(2.7.16-2)
|
|
| focal |
Not vulnerable
(2.7.16-2)
|
|
| groovy |
Not vulnerable
(2.7.16-2)
|
|
| hirsute |
Not vulnerable
(2.7.16-2)
|
|
| impish |
Not vulnerable
(2.7.16-2)
|
|
| jammy |
Not vulnerable
(2.7.16-2)
|
|
| kinetic |
Not vulnerable
(2.7.16-2)
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| noble |
Does not exist
|
|
| trusty |
Not vulnerable
(2.7.6-8ubuntu0.5)
|
|
| upstream |
Needs triage
|
|
| xenial |
Not vulnerable
(2.7.12-1ubuntu0~16.04.4)
|
|
|
python3.4
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| noble |
Does not exist
|
|
| trusty |
Released
(3.4.3-1ubuntu1~14.04.7+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Released
(3.4.2-1+deb8u2)
|
|
| xenial |
Does not exist
|
|
|
Patches:
upstream: https://github.com/python/cpython/commit/4b42d575bf0fb01192b3ec54b7e224b238691527 |
||
|
python3.5
Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| noble |
Does not exist
|
|
| trusty |
Released
(3.5.2-2ubuntu0~16.04.4~14.04.1+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Needs triage
|
|
| xenial |
Released
(3.5.2-2ubuntu0~16.04.8)
|
|
|
Patches:
upstream: https://github.com/python/cpython/commit/ef33dd6036aafbd3f06c1d56e2b1a81dae3da63c |
||
|
python3.6
Launchpad, Ubuntu, Debian |
bionic |
Released
(3.6.7-1~18.04)
|
| cosmic |
Released
(3.6.7-1~18.10)
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| noble |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(3.6.7)
|
|
| xenial |
Does not exist
|
|
|
Patches:
upstream: https://github.com/python/cpython/commit/71a9c65e74a70b6ed39adc4ba81d311ac1aa2acc |
||
|
python3.7
Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(3.7.3~rc1-1)
|
| cosmic |
Not vulnerable
(3.7.3~rc1-1)
|
|
| disco |
Not vulnerable
(3.7.3-2)
|
|
| eoan |
Not vulnerable
(3.7.3-2)
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| noble |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(3.7.1)
|
|
| xenial |
Does not exist
|
|
|
Patches:
upstream: https://github.com/python/cpython/commit/ef4306b24c9034d6b37bb034e2ebe82e745d4b77 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |