What is CVE-2020-29373?

CVE-2020-29373 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.5 out of 10. CVE-2020-29373 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2020-29373?

CVE-2020-29373 has a CVSS score of 6.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.

Is there a patch available for CVE-2020-29373?

No patch is currently available for CVE-2020-29373. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2020-29373 actively exploited?

CVE-2020-29373 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2020-29373

Medium

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.

Package Linux Kernel

Published 2020-11-28

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

6.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

None

Vector string

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

Weakness type

CWE-22

CVE-2020-29373 is classified as CWE-22

See CWE-22 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2020-29373 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

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

Exploit Issue Tracking Third Party Advisory
Kernel.org
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6

Release Notes Vendor Advisory
Kernel patch commit
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ff002b30181d30cdfbca316dadd099c3ca0d739c
Patch

Details

CVE ID CVE-2020-29373

Severity Medium

CVSS score 6.5 / 10

CVSS version 3.1

Published 2020-11-28

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2020-29373?

CVE-2020-29373 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.5 out of 10 . CVE-2020-29373 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2020-29373?

CVE-2020-29373 has a CVSS score of 6.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.
Is there a patch available for CVE-2020-29373?

No patch is currently available for CVE-2020-29373. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2020-29373 actively exploited?

No — CVE-2020-29373 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.