What is CVE-2023-31084?

CVE-2023-31084 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Deadlock flaw (CWE-833). CVE-2023-31084 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-31084?

CVE-2023-31084 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-2023-31084?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2023-31084 patch availability.

Is CVE-2023-31084 actively exploited?

CVE-2023-31084 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Deadlock (CWE-833)?

The product contains multiple threads that wait for each other to release locks, causing all threads to halt. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/833.html

CVE-2023-31084

Medium

An issue was discovered in drivers/media/dvb-core/dvb_frontend.c in the Linux kernel 6.2. There is a blocking operation when a task is in !TASK_RUNNING. In dvb_frontend_get_event, wait_event_interruptible is called; the condition is dvb_frontend_test_event(fepriv,events). In dvb_frontend_test_event, down(&fepriv->sem) is called. However, wait_event_interruptible would put the process to sleep, and down(&fepriv->sem) may block the process.

Package Linux Kernel

Published 2023-04-24

Last modified 2025-03-18

CVSS version 3.1

Patch available

Awaiting data

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

Weakness type

CWE-833

CVE-2023-31084 is a Deadlock vulnerability

What is Deadlock?

The product contains multiple threads that wait for each other to release locks, causing all threads to halt. Learn more on MITRE CWE

References

9 total

Kernel Git
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b8c75e4a1b325ea0a9433fa8834be97b5836b946
Debian Security
https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html

Mailing List Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html

Mailing List Third Party Advisory
Lists
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6HIEOLEOURP4BJZMIL7UGGPYRRB44UDN/
Lists
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AOATNX5UFL7V7W2QDIQKOHFFHYKWFP4W/

Showing 5 of 9 references View all on NVD

Details

CVE ID CVE-2023-31084

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2023-04-24

Modified 2025-03-18

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2023-31084?

CVE-2023-31084 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a Deadlock flaw (CWE-833) . CVE-2023-31084 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-31084?

CVE-2023-31084 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-2023-31084?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2023-31084 patch availability.
Is CVE-2023-31084 actively exploited?

No. CVE-2023-31084 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.