What is CVE-2021-46963?

CVE-2021-46963 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 4.19.90 onward and patched in 4.19.191, 5.4.118, 5.10.36 and others. CVE-2021-46963 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-46963?

CVE-2021-46963 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2021-46963?

Yes, CVE-2021-46963 has been patched. Fixed versions include 4.19.191, 5.4.118, 5.10.36 and others. If you are running Linux kernel 4.19.90 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2021-46963 actively exploited?

CVE-2021-46963 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-46963

Medium

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix crash in qla2xxx_mqueuecommand() RIP: 0010:kmem_cache_free+0xfa/0x1b0 Call Trace: qla2xxx_mqueuecommand+0x2b5/0x2c0 [qla2xxx] scsi_queue_rq+0x5e2/0xa40 __blk_mq_try_issue_directly+0x128/0x1d0 blk_mq_request_issue_directly+0x4e/0xb0 Fix incorrect call to free srb in qla2xxx_mqueuecommand(), as srb is now allocated by upper layers. This fixes smatch warning of srb unintended free.

Package Linux Kernel

Published 2024-02-27

Last modified 2024-12-11

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Affected versions

Linux kernel versions 4.19.90, 5.4.4, 5.3.17, 5.5 and later are affected. Fixed in 4.19.191, 5.4.118, 5.10.36, 5.11.20, 5.12.3, 5.13 and their respective stable series.

Affected from

≥ 4.19.90 ≥ 5.4.4 ≥ 5.3.17 ≥ 5.5

Fixed in

✓ 4.19.191 4.19.x ✓ 5.4.118 5.4.x ✓ 5.10.36 5.10.x ✓ 5.11.20 5.11.x ✓ 5.12.3 5.12.x ✓ 5.13

References

6 total

Kernel Git
https://git.kernel.org/stable/c/6641df81ab799f28a5d564f860233dd26cca0d93

Patch
Kernel Git
https://git.kernel.org/stable/c/702cdaa2c6283c135ef16d52e0e4e3c1005aa538

Patch
Kernel Git
https://git.kernel.org/stable/c/77509a238547863040a42d57c72403f7d4c89a8f

Patch
Kernel Git
https://git.kernel.org/stable/c/80ef24175df2cba3860d0369d1c662b49ee2de56

Patch
Kernel Git
https://git.kernel.org/stable/c/a73208e3244127ef9f2cdf24e4adb947aaa32053

Patch

Showing 5 of 6 references View all on NVD

Details

CVE ID CVE-2021-46963

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-02-27

Modified 2024-12-11

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2021-46963?

CVE-2021-46963 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 4.19.90 onward and has been patched in 4.19.191, 5.4.118, 5.10.36 and others. CVE-2021-46963 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-46963?

CVE-2021-46963 has a CVSS score of 5.5 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:U/C:N/I:N/A:H.
Is there a patch available for CVE-2021-46963?

Yes. CVE-2021-46963 has been patched. Fixed versions include 4.19.191, 5.4.118, 5.10.36 and others. If you are running Linux kernel 4.19.90 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2021-46963 actively exploited?

No. CVE-2021-46963 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.