Detections
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CVE-2020-29373

medium

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.

References

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ff002b30181d30cdfbca316dadd099c3ca0d739c

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6

https://bugs.chromium.org/p/project-zero/issues/detail?id=2011

Details

Source: Mitre, NVD

Published: 2020-11-28

Updated: 2020-12-02

Risk Information

CVSS v2

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N

Severity: Low

CVSS v3

Base Score: 6.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Severity: Medium