CVE-2019-5736

Publication date 11 February 2019

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.6 · High

Score breakdown

runc through 1.0-rc6, as used in Docker before 18.09.2 and other products, allows attackers to overwrite the host runc binary (and consequently obtain host root access) by leveraging the ability to execute a command as root within one of these types of containers: (1) a new container with an attacker-controlled image, or (2) an existing container, to which the attacker previously had write access, that can be attached with docker exec. This occurs because of file-descriptor mishandling, related to /proc/self/exe.

Status

Package Ubuntu Release Status
docker.io 19.04 disco
Not affected
18.10 cosmic
Fixed 18.06.1-0ubuntu1.2
18.04 LTS bionic
Fixed 18.06.1-0ubuntu1.2~18.04.1
16.04 LTS xenial
Fixed 18.06.1-0ubuntu1.2~16.04.1
14.04 LTS trusty Not in release
runc 19.04 disco
Not affected
18.10 cosmic
Fixed 1.0.0~rc4+dfsg1-6ubuntu0.18.10.1
18.04 LTS bionic
Fixed 1.0.0~rc4+dfsg1-6ubuntu0.18.04.1
16.04 LTS xenial
Fixed 1.0.0~rc2+docker1.13.1-0ubuntu1~16.04.1
14.04 LTS trusty Not in release

Severity score breakdown

Parameter Value
Base score 8.6 · High
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references