CVE-2023-3212: debian debian_linux NULL Pointer Dereference

Modified

AliasesUBUNTU-CVE-2023-3212DEBIAN-CVE-2023-3212

Published 23-06-2023Last modified 14-10-2026

Vulnerability summary

CVE-2023-3212 is a medium (CVSS 4.4) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 20.1% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 4.4, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

4.4/10

010

Medium · v3.1 (NVD)

EPSS score

0.28%

0%100%

Low · +0.01 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Timeline

23-06-2023
PublishedVulnerability first disclosed.
14-10-2026
Last modifiedVulnerability information updated.

Description

A NULL pointer dereference issue was found in the gfs2 file system in the Linux kernel. It occurs on corrupt gfs2 file systems when the evict code tries to reference the journal descriptor structure after it has been freed and set to NULL. A privileged local user could use this flaw to cause a kernel panic.

CVSS metrics

3 scores · 3 sources · 1 version

v3.14.4

EPSS trend

Probability

0.28%

Chance of exploitation in the next 30 days

Percentile

20%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.26% 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-476NULL Pointer DereferenceThe product dereferences a pointer that it expects to be valid but is NULL.

Affected systems

Version check

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

Ubuntu105 products

linuxAll versions (No fix recorded) | < 4.4.0-245.279 | < 4.15.0-218.229 | < 5.4.0-164.181 | < 5.15.0-83.92
linux-allwinner-5.19All versions (No fix recorded)
linux-aws< 4.4.0-1123.129 | < 4.4.0-1161.176 | < 4.15.0-1161.174 | < 5.4.0-1111.120 | < 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< 5.4.0-1111.120~18.04.1
linux-aws-5.8All versions (No fix recorded)
linux-aws-6.2< 6.2.0-1013.13~22.04.1
linux-aws-fips< 4.15.0-2100.106 | All versions (No fix recorded) | < 5.4.0-1111.120+fips1
linux-aws-hwe< 4.15.0-1161.174~16.04.1
linux-azure< 4.15.0-1170.185~14.04.1 | < 4.15.0-1170.185~16.04.1 | All versions (No fix recorded) | < 5.4.0-1117.124 | < 5.15.0-1046.53
linux-azure-4.15< 4.15.0-1170.185
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< 5.4.0-1117.124~18.04.1
linux-azure-5.8All versions (No fix recorded)
linux-azure-6.2< 6.2.0-1014.14~22.04.1
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-fde-6.2< 6.2.0-1014.14~22.04.1.1
linux-azure-fips< 4.15.0-2079.85 | All versions (No fix recorded) | < 5.4.0-1117.124+fips1
linux-bluefield< 5.4.0-1072.78 | < 5.15.0-1023.25
linux-fips< 4.4.0-1093.100 | All versions (No fix recorded) | < 4.15.0-1116.127 | < 5.4.0-1086.95
linux-gcp< 4.15.0-1155.172~16.04.1 | All versions (No fix recorded) | < 5.4.0-1115.124 | < 5.15.0-1041.49
linux-gcp-4.15< 4.15.0-1155.172
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< 5.4.0-1115.124~18.04.1
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-6.2< 6.2.0-1016.18~22.04.1
linux-gcp-fips< 4.15.0-2063.68 | All versions (No fix recorded) | < 5.4.0-1115.124+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< 5.4.0-1078.82 | < 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< 4.15.0-218.229~16.04.1 | 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< 5.4.0-164.181~18.04.1
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-6.2< 6.2.0-34.34~22.04.1
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.4.0-1058.63 | < 5.15.0-1037.40
linux-ibm-5.15< 5.15.0-1037.40~20.04.1
linux-ibm-5.4< 5.4.0-1058.63~18.04.1
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< 5.4.0-1023.24
linux-kvm< 4.4.0-1124.134 | < 4.15.0-1145.150 | < 5.4.0-1100.106 | < 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< 6.2.0-1014.14~22.04.1
linux-lts-xenial< 4.4.0-245.279~14.04.1
linux-nvidia< 5.15.0-1032.32
linux-nvidia-6.2< 6.2.0-1011.11
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< 4.15.0-1124.135~16.04.1 | < 4.15.0-1124.135 | < 5.4.0-1110.119 | < 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< 5.4.0-1110.119~18.04.1
linux-oracle-5.8All versions (No fix recorded)
linux-raspi< 5.4.0-1095.106 | < 5.15.0-1037.40
linux-raspi-5.4< 5.4.0-1095.106~18.04.1
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< 5.4.0-1031.35 | < 5.15.0-1025.29