CVE-2023-51043: linux linux_kernel Use After Free

Modified

AliasesUBUNTU-CVE-2023-51043DEBIAN-CVE-2023-51043

Published 23-01-2024Last modified 29-08-2024

Vulnerability summary

CVE-2023-51043 is a high (CVSS 7.0) Use After Free vulnerability in linux linux_kernel. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 16% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 7, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

7.0/10

010

High · v3.1 (CVE.org)

EPSS score

0.25%

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

Advisory lineage

Upstream 0 · Downstream 19 · Related 13

RHSA-2023:7077 RHSA-2024:1018 RHSA-2024:1019 RHSA-2024:1188 RHSA-2024:1404 RHSA-2024:2394+13 more

Timeline

23-01-2024
PublishedVulnerability first disclosed.
29-08-2024
Last modifiedVulnerability information updated.

Description

In the Linux kernel before 6.4.5, drivers/gpu/drm/drm_atomic.c has a use-after-free during a race condition between a nonblocking atomic commit and a driver unload.

CVSS metrics

5 scores · 4 sources · 2 versions

v4.07.3v3.17.0

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

16%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.25% 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-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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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

Version check

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

Ubuntu106 products

linux< 4.4.0-253.287 | < 4.15.0-224.236 | < 5.4.0-166.183 | < 5.15.0-86.96
linux-allwinner-5.19All versions (No fix recorded)
linux-aws< 4.4.0-1130.136 | < 4.4.0-1168.183 | < 4.15.0-1167.180 | < 5.4.0-1113.123 | < 5.15.0-1047.52
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< 5.15.0-1047.52~20.04.1
linux-aws-5.19All versions (No fix recorded)
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4< 5.4.0-1113.123~18.04.1
linux-aws-5.8All versions (No fix recorded)
linux-aws-6.2All versions (No fix recorded)
linux-aws-fips< 4.15.0-2106.112 | All versions (No fix recorded) | < 5.4.0-1113.123+fips1
linux-aws-hwe< 4.15.0-1167.180~16.04.1
linux-azure< 4.15.0-1176.191~14.04.1 | < 4.15.0-1176.191~16.04.1 | All versions (No fix recorded) | < 5.4.0-1119.126 | < 5.15.0-1049.56
linux-azure-4.15< 4.15.0-1176.191
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.15< 5.15.0-1049.56~20.04.1
linux-azure-5.19All versions (No fix recorded)
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1119.126~18.04.2
linux-azure-5.8All versions (No fix recorded)
linux-azure-6.2All versions (No fix recorded)
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fdeAll versions (No fix recorded) | < 5.15.0-1049.56.1
linux-azure-fde-5.19All versions (No fix recorded)
linux-azure-fde-6.2All versions (No fix recorded)
linux-azure-fips< 4.15.0-2085.91 | All versions (No fix recorded) | < 5.4.0-1119.126+fips1
linux-bluefield< 5.4.0-1074.80 | < 5.15.0-1027.29
linux-fips< 4.4.0-1100.107 | All versions (No fix recorded) | < 4.15.0-1122.133 | < 5.4.0-1088.97
linux-gcp< 4.15.0-1161.178~16.04.1 | All versions (No fix recorded) | < 5.4.0-1117.126 | < 5.15.0-1044.52
linux-gcp-4.15< 4.15.0-1161.178
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.15< 5.15.0-1044.52~20.04.1
linux-gcp-5.19All versions (No fix recorded)
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1117.126~18.04.1
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-6.2All versions (No fix recorded)
linux-gcp-fips< 4.15.0-2069.74 | All versions (No fix recorded) | < 5.4.0-1117.126+fips1
linux-gkeAll versions (No fix recorded) | < 5.15.0-1044.49
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< 5.4.0-1080.84 | < 5.15.0-1030.35
linux-gkeop-5.15< 5.15.0-1030.35~20.04.1
linux-gkeop-5.4All versions (No fix recorded)
linux-hwe< 4.15.0-224.236~16.04.1 | 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< 5.15.0-86.96~20.04.1
linux-hwe-5.19All versions (No fix recorded)
linux-hwe-5.4< 5.4.0-166.183~18.04.2
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-6.2All versions (No fix recorded)
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.4.0-1060.65 | < 5.15.0-1040.43
linux-ibm-5.15< 5.15.0-1040.43~20.04.1
linux-ibm-5.4< 5.4.0-1060.65~18.04.1
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtime< 5.15.0-1040.42
linux-intel-iotg< 5.15.0-1043.49
linux-intel-iotg-5.15< 5.15.0-1043.49~20.04.1
linux-iot< 5.4.0-1025.26
linux-kvm< 4.4.0-1131.141 | < 4.15.0-1151.156 | < 5.4.0-1102.108 | < 5.15.0-1044.49
linux-lowlatency< 5.15.0-86.95
linux-lowlatency-hwe-5.15< 5.15.0-86.95~20.04.1
linux-lowlatency-hwe-5.19All versions (No fix recorded)
linux-lowlatency-hwe-6.2All versions (No fix recorded)
linux-lts-xenial< 4.4.0-253.287~14.04.1
linux-nvidia< 5.15.0-1037.37
linux-nvidia-6.2All versions (No fix recorded)
linux-nvidia-tegra< 5.15.0-1018.18
linux-nvidia-tegra-5.15< 5.15.0-1018.18~20.04.1
linux-nvidia-tegra-igx< 5.15.0-1005.5
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-6.1All versions (No fix recorded)
linux-oracle< 4.15.0-1130.141~16.04.1 | < 4.15.0-1130.141 | < 5.4.0-1112.121 | < 5.15.0-1045.51
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< 5.15.0-1045.51~20.04.1
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1112.121~18.04.4
linux-oracle-5.8All versions (No fix recorded)
linux-raspi< 5.4.0-1097.109 | < 5.15.0-1040.43
linux-raspi-5.4< 5.4.0-1097.109~18.04.2
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded) | < 5.15.0-1048.54
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.15< 5.15.0-1043.47~20.04.1
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-starfive-6.2All versions (No fix recorded)
linux-xilinx-zynqmp< 5.4.0-1033.37 | < 5.15.0-1025.29

Show all 106

Debian1 product

linux< 6.1.52-1 | < 6.4.11-1

Linux1 product

linux_kernel< 6.4.5

3 vendors · 108 products

References

8 links

github.com/torvalds/linux/commit/4e076c73e4f6e90816b30fcd4a0d7ab365087255REPORTPatch
cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.5REPORTRelease Notes
ubuntu.com/security/CVE-2023-51043REPORT
www.cve.org/CVERecord?id=CVE-2023-51043REPORT
ubuntu.com/security/notices/USN-6739-1Advisory
ubuntu.com/security/notices/USN-6740-1Advisory
security-tracker.debian.org/tracker/CVE-2023-51043Advisory
nvd.nist.gov/vuln/detail/CVE-2023-51043OvalAdvisory