What is CVE-2021-29154?

CVE-2021-29154 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10. CVE-2021-29154 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-29154?

CVE-2021-29154 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-2021-29154?

No patch is currently available for CVE-2021-29154. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-29154 actively exploited?

CVE-2021-29154 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-29154

High

BPF JIT compilers in the Linux kernel through 5.11.12 have incorrect computation of branch displacements, allowing them to execute arbitrary code within the kernel context. This affects arch/x86/net/bpf_jit_comp.c and arch/x86/net/bpf_jit_comp32.c.

Package Linux Kernel

Published 2021-04-08

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

Weakness type

CWE-77

CVE-2021-29154 is classified as CWE-77

See CWE-77 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2021-29154 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Packet Storm
http://packetstormsecurity.com/files/162434/Kernel-Live-Patch-Security-Notice-LSN-0076-1.html

Third Party Advisory VDB Entry
Debian Security
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html

Mailing List Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html

Mailing List Third Party Advisory
Lists
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W5YFGIIF24475A2LNW3UWHW2SNCS3G7M/
News
https://news.ycombinator.com/item?id=26757760

Issue Tracking Third Party Advisory
Security
https://security.netapp.com/advisory/ntap-20210604-0006/

Third Party Advisory
Oracle
https://www.oracle.com/security-alerts/cpujul2022.html

Third Party Advisory
Kernel patch commit
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=26f55a59dc65ff77cd1c4b37991e26497fc68049
Patch
Kernel patch commit
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e4d4d456436bfb2fe412ee2cd489f7658449b098
Patch
Kernel patch commit
https://www.openwall.com/lists/oss-security/2021/04/08/1
Patch

Details

CVE ID CVE-2021-29154

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2021-04-08

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-29154?

CVE-2021-29154 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2021-29154 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-29154?

CVE-2021-29154 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-2021-29154?

No patch is currently available for CVE-2021-29154. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-29154 actively exploited?

No — CVE-2021-29154 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.