CVE-2023-2985: linux linux_kernel Use After Free

CVSS: 5.5v3.1MediumModified

AliasesUBUNTU-CVE-2023-2985DEBIAN-CVE-2023-2985

Published 01-06-2023Last modified 11-03-2025

Vulnerability summary

CVE-2023-2985 is a medium (CVSS 5.5) Use After Free vulnerability in linux linux_kernel. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 8.9% of scored vulnerabilities.

Overall risk

22/100

0100

Low · default modelHow is this calculated?

CVSS score

5.5/10

010

Medium · v3.1 (CVE.org)

EPSS score

0.20%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedIn no KEV catalog

RansomwareNone recordedNo known use recorded

Public exploits0No public exploits recorded

Timeline

01-06-2023
PublishedVulnerability first disclosed.
11-03-2025
Last modifiedVulnerability information updated.

Description

A use after free flaw was found in hfsplus_put_super in fs/hfsplus/super.c in the Linux Kernel. This flaw could allow a local user to cause a denial of service problem.

CVSS metrics

4 scores · 4 sources · 1 version

v3.15.5

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

Versus all other CVEs

30-day change

0.00 pp

From 0.20% on 21-09-2026

21-09-202621-10-2026

EPSS score

0.20%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected systems

Ubuntu93 products

linuxAll versions (No fix recorded) | < 4.4.0-244.278 | < 4.15.0-216.227 | < 5.4.0-152.169 | < 5.15.0-75.82
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 | < 5.4.0-1104.112 | < 5.15.0-1038.43
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< 5.15.0-1038.43~20.04.1
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4< 5.4.0-1104.112~18.04.1
linux-aws-5.8All versions (No fix recorded)
linux-aws-fips< 4.15.0-2099.105 | All versions (No fix recorded) | < 5.4.0-1104.112+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) | < 5.4.0-1110.116 | < 5.15.0-1040.47
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< 5.15.0-1040.47~20.04.1
linux-azure-5.19All versions (No fix recorded)
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1110.116~18.04.1
linux-azure-5.8All versions (No fix recorded)
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fde< 5.15.0-1041.48.1
linux-azure-fde-5.15< 5.15.0-1114.123~20.04.1
linux-azure-fde-5.19All versions (No fix recorded)
linux-azure-fips< 4.15.0-2078.84 | All versions (No fix recorded) | < 5.4.0-1110.116+fips1
linux-bluefield< 5.4.0-1065.71 | < 5.15.0-1019.21
linux-fips< 4.4.0-1092.99 | All versions (No fix recorded) | < 4.15.0-1115.126 | < 5.4.0-1079.88
linux-gcp< 4.15.0-1154.171~16.04.1 | All versions (No fix recorded) | < 5.4.0-1107.116 | < 5.15.0-1036.44
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< 5.15.0-1036.44~20.04.1
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1107.116~18.04.1
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-fips< 4.15.0-2062.67 | All versions (No fix recorded) | < 5.4.0-1107.116+fips1
linux-gke< 5.4.0-1102.109 | < 5.15.0-1036.41
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.15< 5.15.0-1036.41~20.04.1
linux-gke-5.4All versions (No fix recorded)
linux-gkeop< 5.4.0-1071.75 | < 5.15.0-1022.27
linux-gkeop-5.15< 5.15.0-1022.27~20.04.1
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< 5.15.0-75.82~20.04.1
linux-hwe-5.19< 5.19.0-45.46~22.04.1
linux-hwe-5.4< 5.4.0-152.169~18.04.1
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.4.0-1051.56 | < 5.15.0-1032.35
linux-ibm-5.4< 5.4.0-1051.56~18.04.1
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtime< 5.15.0-1033.35
linux-intel-iotg< 5.15.0-1033.38
linux-intel-iotg-5.15< 5.15.0-1033.38~20.04.1
linux-iot< 5.4.0-1017.18
linux-kvm< 4.4.0-1123.133 | < 4.15.0-1144.149 | < 5.4.0-1093.99 | < 5.15.0-1035.40
linux-lowlatency< 5.15.0-75.82
linux-lowlatency-hwe-5.15< 5.15.0-75.82~20.04.1
linux-lowlatency-hwe-5.19All versions (No fix recorded)
linux-lts-xenial< 4.4.0-244.278~14.04.1
linux-nvidia< 5.15.0-1027.27
linux-nvidia-tegra< 5.15.0-1015.15
linux-nvidia-tegra-5.15< 5.15.0-1015.15~20.04.1
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< 6.1.0-1009.9
linux-oracle< 4.15.0-1123.134~16.04.1 | < 4.15.0-1123.134 | < 5.4.0-1103.112 | < 5.15.0-1037.43
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< 5.15.0-1037.43~20.04.1
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1103.112~18.04.1
linux-oracle-5.8All versions (No fix recorded)
linux-raspi< 5.4.0-1088.99 | < 5.15.0-1032.35
linux-raspi-5.4< 5.4.0-1088.99~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded) | < 5.15.0-1040.45
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.15< 5.15.0-1035.39~20.04.1
linux-riscv-5.8All versions (No fix recorded)
linux-xilinx-zynqmp< 5.4.0-1024.28