Vulnerability in Linux Kernel
CVE-2023-31084
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.
EPSS: 0.004 (34.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Linux Linux_kernel — versions 6.2
- Netapp H410c
- Netapp H410c_firmware
- Debian Debian_linux — versions 10.0, 11.0, 12.0
- Fedoraproject Fedora — versions 37, 38
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (vendor-advisory, Third Party Advisory)
- cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
- cve@mitre.org (vendor-advisory, Third Party Advisory)
- cve@mitre.org (Third Party Advisory)
- cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
- cve@mitre.org
Frequently asked questions
- What is CVE-2023-31084?
- CVE-2023-31084 is a medium-severity vulnerability in Linux Kernel, classified under CWE-833. CVSS score: 5.5/10. Published 2023-04-24.
- How severe is CVE-2023-31084?
- Medium severity. CVSS v3 base score is 5.5 out of 10.