CVE-2023-1095: linux linux_kernel NULL Pointer Dereference

Modified

AliasesUBUNTU-CVE-2023-1095DEBIAN-CVE-2023-1095

Published 28-02-2023Last modified 14-10-2026

Vulnerability summary

CVE-2023-1095 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux linux_kernel. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 15.7% 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

0.24%

0%100%

Low · +0.03 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Timeline

28-02-2023
PublishedVulnerability first disclosed.
14-10-2026
Last modifiedVulnerability information updated.

Description

In nf_tables_updtable, if nf_tables_table_enable returns an error, nft_trans_destroy is called to free the transaction object. nft_trans_destroy() calls list_del(), but the transaction was never placed on a list -- the list head is all zeroes, this results in a NULL pointer dereference.

CVSS metrics

5 scores · 4 sources · 2 versions

v4.05.7v3.15.5

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

16%

Versus all other CVEs

30-day change

Increase +0.03 pp

From 0.21% 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, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu84 products

linux< 4.4.0-239.273 | < 4.15.0-197.208 | < 5.4.0-132.148 | < 5.15.0-53.59
linux-aws< 4.4.0-1117.123 | < 4.4.0-1155.170 | < 4.15.0-1143.155 | < 5.4.0-1089.97 | < 5.15.0-1023.27
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< 5.15.0-1023.27~20.04.1
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4< 5.4.0-1089.97~18.04.1
linux-aws-5.8All versions (No fix recorded)
linux-aws-fips< 4.15.0-2082.88 | All versions (No fix recorded) | < 5.4.0-1089.97+fips1
linux-aws-hwe< 4.15.0-1143.155~16.04.1
linux-azure< 4.15.0-1157.172~14.04.2 | < 4.15.0-1159.174~16.04.1 | All versions (No fix recorded) | < 5.4.0-1095.101 | < 5.15.0-1023.29
linux-azure-4.15< 4.15.0-1157.172
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.15< 5.15.0-1023.29~20.04.1
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1095.101~18.04.1
linux-azure-5.8All versions (No fix recorded)
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fde< 5.15.0-1024.30.1
linux-azure-fips< 4.15.0-2066.72 | All versions (No fix recorded) | < 5.4.0-1095.101+fips1
linux-bluefield< 5.4.0-1050.56
linux-dell300x< 4.15.0-1055.60
linux-fips< 4.4.0-1088.95 | All versions (No fix recorded) | < 4.15.0-1100.111 | < 5.4.0-1065.74
linux-gcp< 4.15.0-1138.154~16.04.1 | All versions (No fix recorded) | < 5.4.0-1093.102 | < 5.15.0-1022.29
linux-gcp-4.15< 4.15.0-1138.154
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.15< 5.15.0-1022.29~20.04.1
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1093.102~18.04.1
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-fips< 4.15.0-2047.52 | All versions (No fix recorded) | < 5.4.0-1093.102+fips1
linux-gke< 5.4.0-1087.94 | < 5.15.0-1020.25
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.15< 5.15.0-1020.25~20.04.1
linux-gke-5.4All versions (No fix recorded)
linux-gkeop< 5.4.0-1057.61 | < 5.15.0-1008.12
linux-gkeop-5.15< 5.15.0-1008.12~20.04.1
linux-gkeop-5.4All versions (No fix recorded)
linux-hwe< 4.15.0-197.208~16.04.1 | 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< 5.15.0-53.59~20.04.1
linux-hwe-5.4< 5.4.0-132.148~18.04.1
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.4.0-1037.42 | < 5.15.0-1018.21
linux-ibm-5.4< 5.4.0-1037.42~18.04.1
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded)
linux-intel-iotg< 5.15.0-1018.23
linux-intel-iotg-5.15< 5.15.0-1018.23~20.04.1
linux-iot< 5.4.0-1006.8
linux-kvm< 4.4.0-1118.128 | < 4.15.0-1129.134 | < 5.4.0-1079.85 | < 5.15.0-1021.26
linux-lowlatency< 5.15.0-53.59
linux-lowlatency-hwe-5.15< 5.15.0-53.59~20.04.1
linux-lts-xenial< 4.4.0-239.273~14.04.1
linux-nvidia< 5.15.0-1015.15
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-5.17< 5.17.0-1030.31
linux-oem-5.6All versions (No fix recorded)
linux-oracle< 4.15.0-1108.119~16.04.1 | < 4.15.0-1108.119 | < 5.4.0-1087.96 | < 5.15.0-1022.28
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< 5.15.0-1022.28~20.04.1
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1087.96~18.04.1
linux-oracle-5.8All versions (No fix recorded)
linux-raspi< 5.4.0-1074.85 | < 5.15.0-1018.20
linux-raspi-5.4< 5.4.0-1074.85~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2< 4.15.0-1121.129 | All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded) | < 5.15.0-1025.28
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.15< 5.15.0-1023.27~20.04.1
linux-riscv-5.8All versions (No fix recorded)
linux-snapdragon< 4.15.0-1139.149