CVE-2023-31084: debian debian_linux Deadlock

Modified

AliasesUBUNTU-CVE-2023-31084DEBIAN-CVE-2023-31084

Published 24-04-2023Last modified 18-03-2025

Vulnerability summary

CVE-2023-31084 is a medium (CVSS 5.5) Deadlock vulnerability in debian debian_linux. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 35.2% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

5.5/10

010

Medium · v3.1 (CVE.org)

EPSS score

0.41%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Timeline

24-04-2023
PublishedVulnerability first disclosed.
18-03-2025
Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

4 scores · 4 sources · 1 version

v3.15.5

EPSS trend

Probability

0.41%

Chance of exploitation in the next 30 days

Percentile

35%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.41% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-833DeadlockThe product contains multiple threads or executable segments that are waiting for each other to release a necessary lock, resulting in deadlock.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu103 products

linuxAll versions (No fix recorded) | < 4.4.0-244.278 | < 4.15.0-216.227 | < 5.4.0-162.179 | < 5.15.0-83.92
linux-allwinner-5.19All versions (No fix recorded)
linux-aws< 4.4.0-1122.128 | < 4.4.0-1160.175 | < 4.15.0-1160.173 | < 5.4.0-1109.118 | < 5.15.0-1044.49
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.11All versions (No fix recorded)

linux-aws-5.13All versions (No fix recorded)
linux-aws-5.15< 5.15.0-1044.49~20.04.1
linux-aws-5.19All versions (No fix recorded)
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4< 5.4.0-1109.118~18.04.1
linux-aws-5.8All versions (No fix recorded)
linux-aws-6.2< 6.2.0-1011.11~22.04.1
linux-aws-fips< 4.15.0-2099.105 | All versions (No fix recorded) | < 5.4.0-1109.118+fips1
linux-aws-hwe< 4.15.0-1160.173~16.04.1
linux-azure< 4.15.0-1169.184~14.04.1 | < 4.15.0-1169.184~16.04.1 | All versions (No fix recorded) | < 5.4.0-1115.122 | < 5.15.0-1046.53
linux-azure-4.15< 4.15.0-1169.184
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.15< 5.15.0-1046.53~20.04.1
linux-azure-5.19All versions (No fix recorded)
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1115.122~18.04.1
linux-azure-5.8All versions (No fix recorded)
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fdeAll versions (No fix recorded) | < 5.15.0-1046.53.1
linux-azure-fde-5.19All versions (No fix recorded)
linux-azure-fips< 4.15.0-2078.84 | All versions (No fix recorded) | < 5.4.0-1115.122+fips1
linux-bluefield< 5.4.0-1070.76 | < 5.15.0-1023.25
linux-fips< 4.4.0-1092.99 | All versions (No fix recorded) | < 4.15.0-1115.126 | < 5.4.0-1084.93
linux-gcp< 4.15.0-1154.171~16.04.1 | All versions (No fix recorded) | < 5.4.0-1112.121 | < 5.15.0-1041.49
linux-gcp-4.15< 4.15.0-1154.171
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.15< 5.15.0-1041.49~20.04.1
linux-gcp-5.19All versions (No fix recorded)
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1112.121~18.04.1
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-6.2< 6.2.0-1013.13~22.04.1
linux-gcp-fips< 4.15.0-2062.67 | All versions (No fix recorded) | < 5.4.0-1112.121+fips1
linux-gkeAll versions (No fix recorded) | < 5.15.0-1041.46
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.15All versions (No fix recorded)
linux-gke-5.4All versions (No fix recorded)
linux-gkeop< 5.4.0-1076.80 | < 5.15.0-1027.32
linux-gkeop-5.15< 5.15.0-1027.32~20.04.1
linux-gkeop-5.4All versions (No fix recorded)
linux-hwe< 4.15.0-216.227~16.04.1 | All versions (No fix recorded)
linux-hwe-5.11All versions (No fix recorded)
linux-hwe-5.13All versions (No fix recorded)
linux-hwe-5.15< 5.15.0-83.92~20.04.1
linux-hwe-5.19All versions (No fix recorded)
linux-hwe-5.4< 5.4.0-162.179~18.04.1
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-6.2< 6.2.0-32.32~22.04.1
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.4.0-1056.61 | < 5.15.0-1037.40
linux-ibm-5.15< 5.15.0-1037.40~20.04.1
linux-ibm-5.4< 5.4.0-1056.61~18.04.1
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtime< 5.15.0-1038.40
linux-intel-iotg< 5.15.0-1039.45
linux-intel-iotg-5.15< 5.15.0-1040.46~20.04.1
linux-iot< 5.4.0-1021.22
linux-kvm< 4.4.0-1123.133 | < 4.15.0-1144.149 | < 5.4.0-1098.104 | < 5.15.0-1041.46
linux-lowlatency< 5.15.0-83.92
linux-lowlatency-hwe-5.15< 5.15.0-83.92~20.04.1
linux-lowlatency-hwe-5.19All versions (No fix recorded)
linux-lowlatency-hwe-6.2< 6.2.0-1012.12~22.04.1
linux-lts-xenial< 4.4.0-244.278~14.04.1
linux-nvidia< 5.15.0-1032.32
linux-nvidia-6.2< 6.2.0-1010.10
linux-nvidia-tegra< 5.15.0-1017.17
linux-nvidia-tegra-5.15< 5.15.0-1017.17~20.04.1
linux-nvidia-tegra-igx< 5.15.0-1004.4
linux-oemAll versions (No fix recorded)
linux-oem-5.10All versions (No fix recorded)
linux-oem-5.13All versions (No fix recorded)
linux-oem-5.14All versions (No fix recorded)
linux-oem-5.17All versions (No fix recorded)
linux-oem-5.6All versions (No fix recorded)
linux-oem-6.0All versions (No fix recorded)
linux-oem-6.1< 6.1.0-1016.16
linux-oracle< 4.15.0-1123.134~16.04.1 | < 4.15.0-1123.134 | < 5.4.0-1108.117 | < 5.15.0-1042.48
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.11All versions (No fix recorded)
linux-oracle-5.13All versions (No fix recorded)
linux-oracle-5.15< 5.15.0-1042.48~20.04.1
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1108.117~18.04.1
linux-oracle-5.8All versions (No fix recorded)
linux-raspi< 5.4.0-1093.104 | < 5.15.0-1037.40
linux-raspi-5.4< 5.4.0-1093.104~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded) | < 5.15.0-1045.50
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.15< 5.15.0-1040.44~20.04.3
linux-riscv-5.19All versions (No fix recorded)
linux-riscv-5.8All versions (No fix recorded)
linux-starfive-5.19All versions (No fix recorded)
linux-xilinx-zynqmp< 5.4.0-1029.33 | < 5.15.0-1025.29