What is CVE-2020-29534?

CVE-2020-29534 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10. CVE-2020-29534 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2020-29534?

CVE-2020-29534 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2020-29534?

No patch is currently available for CVE-2020-29534. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2020-29534 actively exploited?

CVE-2020-29534 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2020-29534

High

An issue was discovered in the Linux kernel before 5.9.3. io_uring takes a non-refcounted reference to the files_struct of the process that submitted a request, causing execve() to incorrectly optimize unshare_fd(), aka CID-0f2122045b94.

Package Linux Kernel

Published 2020-12-03

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

References

The following references provide additional information about CVE-2020-29534 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://bugs.chromium.org/p/project-zero/issues/detail?id=2089
Patch
Kernel patch commit
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.3
Patch
Kernel patch commit
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0f2122045b946241a9e549c2a76cea54fa58a7ff
Patch

Details

CVE ID CVE-2020-29534

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2020-12-03

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2020-29534?

CVE-2020-29534 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2020-29534 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2020-29534?

CVE-2020-29534 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2020-29534?

No patch is currently available for CVE-2020-29534. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2020-29534 actively exploited?

No — CVE-2020-29534 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.