CVE-2020-29373

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://euvd.enisa.europa.eu/vulnerability/EUVD-2020-21746

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

Risk Information

CVSS v2

CVSS v3

EPSS