CVE-2022-29162

 

Published at: - 17-05-2022 11:15

Last modified: - 19-10-2022 03:55

Total changes: - 5

Description

runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. A bug was found in runc prior to version 1.1.2 where `runc exec --cap` created processes with non-empty inheritable Linux process capabilities, creating an atypical Linux environment and enabling programs with inheritable file capabilities to elevate those capabilities to the permitted set during execve(2). This bug did not affect the container security sandbox as the inheritable set never contained more capabilities than were included in the container's bounding set. This bug has been fixed in runc 1.1.2. This fix changes `runc exec --cap` behavior such that the additional capabilities granted to the process being executed (as specified via `--cap` arguments) do not include inheritable capabilities. In addition, `runc spec` is changed to not set any inheritable capabilities in the created example OCI spec (`config.json`) file.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

• https://github.com/opencontainers/runc/commit/d04de3a9b72d7a2455c1885fc75eb36d02cd17b5
• https://github.com/opencontainers/runc/releases/tag/v1.1.2
• https://github.com/opencontainers/runc/security/advisories/GHSA-f3fp-gc8g-vw66
• FEDORA-2022-91b747a0d7-Mailing List, Third Party Advisory
• FEDORA-2022-e980dc71b1-Mailing List, Third Party Advisory
• FEDORA-2022-d1f55f8fd0-Mailing List, Third Party Advisory

 

Keywords

NVD

 

CVE-2022-29162

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures