CVE-2020-29373

 

Published at: - 28-11-2020 08:15

Last modified: - 26-10-2022 01:44

Total changes: - 3

Description

An issue was discovered in fs/io_uring.c in the Linux kernel before 5.6. It unsafely handles the root directory during path lookups, and thus a process inside a mount namespace can escape to unintended filesystem locations, aka CID-ff002b30181d.

Common Vulnerability Scoring System (CVSS)

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

 

Verification logic

 

Reference

• https://bugs.chromium.org/p/project-zero/issues/detail?id=2011
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ff002b30181d30cdfbca316dadd099c3ca0d739c

 

Keywords

NVD

 

CVE-2020-29373

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures