CVE-2023-6176: Kernel: local dos vulnerability in scatterwalk_copychunks

Modified

AliasesUBUNTU-CVE-2023-6176DEBIAN-CVE-2023-6176CGA-22pr-j644-w9c4+168 more

Published 16-11-2023Last modified 06-11-2025

Vulnerability summary

CVE-2023-6176 is a medium (CVSS 4.7) NULL Pointer Dereference vulnerability in linux linux_kernel. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 16.5% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 4.7, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

4.7/10

010

Medium · 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

Timeline

16-11-2023
PublishedVulnerability first disclosed.
06-11-2025
Last modifiedVulnerability information updated.

Description

A null pointer dereference flaw was found in the Linux kernel API for the cryptographic algorithm scatterwalk functionality. This issue occurs when a user constructs a malicious packet with specific socket configuration, which could allow a local user to crash the system or escalate their privileges on the system.

CVSS metrics

5 scores · 5 sources · 1 version

v3.14.7

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

17%

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-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.

Ubuntu110 products

linux< 5.4.0-169.187 | < 5.15.0-94.104
linux-allwinner-5.19All versions (No fix recorded)
linux-aws< 5.4.0-1116.126 | < 5.15.0-1053.58
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< 5.15.0-1053.58~20.04.1
linux-aws-5.19All versions (No fix recorded)
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4< 5.4.0-1116.126~18.04.1
linux-aws-5.8All versions (No fix recorded)
linux-aws-6.2All versions (No fix recorded)
linux-aws-6.5All versions (No fix recorded)
linux-aws-fips< 5.4.0-1116.126+fips1 | All versions (No fix recorded) | < 5.15.0-1053.58+fips1
linux-azureAll versions (No fix recorded) | < 5.4.0-1121.128 | < 5.15.0-1056.64
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.15< 5.15.0-1056.64~20.04.1
linux-azure-5.19All versions (No fix recorded)
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1121.128~18.04.1
linux-azure-5.8All versions (No fix recorded)
linux-azure-6.2All versions (No fix recorded)
linux-azure-6.5All versions (No fix recorded)
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fdeAll versions (No fix recorded) | < 5.15.0-1056.64.1
linux-azure-fde-5.19All versions (No fix recorded)
linux-azure-fde-6.2All versions (No fix recorded)
linux-azure-fips< 5.4.0-1121.128+fips1 | All versions (No fix recorded)
linux-bluefield< 5.4.0-1076.82 | < 5.15.0-1035.37
linux-fips< 5.4.0-1090.100 | All versions (No fix recorded) | < 5.15.0-94.104+fips1
linux-gcpAll versions (No fix recorded) | < 5.4.0-1120.129 | < 5.15.0-1051.59
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.15< 5.15.0-1051.59~20.04.1
linux-gcp-5.19All versions (No fix recorded)
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1120.129~18.04.1
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-6.2All versions (No fix recorded)
linux-gcp-6.5All versions (No fix recorded)
linux-gcp-fips< 5.4.0-1120.129+fips1 | All versions (No fix recorded) | < 5.15.0-1055.63+fips2
linux-gkeAll versions (No fix recorded) | < 5.15.0-1050.55
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< 5.4.0-1083.87 | < 5.15.0-1036.42
linux-gkeop-5.15< 5.15.0-1036.42~20.04.1
linux-gkeop-5.4All versions (No fix recorded)
linux-hweAll versions (No fix recorded)
linux-hwe-5.11All versions (No fix recorded)
linux-hwe-5.13All versions (No fix recorded)
linux-hwe-5.15< 5.15.0-94.104~20.04.1
linux-hwe-5.19All versions (No fix recorded)
linux-hwe-5.4< 5.4.0-169.187~18.04.1
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-6.2All versions (No fix recorded)
linux-hwe-6.5< 6.5.0-17.17~22.04.1
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.4.0-1063.68 | < 5.15.0-1046.49
linux-ibm-5.15< 5.15.0-1046.49~20.04.1
linux-ibm-5.4< 5.4.0-1063.68~18.04.1
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtime< 5.15.0-1046.48
linux-intel-iotg< 5.15.0-1047.53
linux-intel-iotg-5.15< 5.15.0-1048.54~20.04.1
linux-iot< 5.4.0-1028.29
linux-kvm< 5.4.0-1104.111 | < 5.15.0-1050.55
linux-lowlatency< 5.15.0-94.104
linux-lowlatency-hwe-5.15< 5.15.0-94.104~20.04.1
linux-lowlatency-hwe-5.19All versions (No fix recorded)
linux-lowlatency-hwe-6.2All versions (No fix recorded)
linux-lowlatency-hwe-6.5< 6.5.0-17.17.1.1.1~22.04.1
linux-nvidia< 5.15.0-1044.44
linux-nvidia-6.2All versions (No fix recorded)
linux-nvidia-6.5< 6.5.0-1014.14
linux-nvidia-tegra< 5.15.0-1022.22
linux-nvidia-tegra-5.15< 5.15.0-1022.22~20.04.1
linux-nvidia-tegra-igx< 5.15.0-1009.9
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< 6.1.0-1025.25
linux-oem-6.5< 6.5.0-1014.15
linux-oracle< 5.4.0-1115.124 | < 5.15.0-1051.57
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< 5.15.0-1051.57~20.04.1
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1115.124~18.04.1
linux-oracle-5.8All versions (No fix recorded)
linux-oracle-6.5All versions (No fix recorded)
linux-raspi< 5.4.0-1100.112 | < 5.15.0-1046.49
linux-raspi-5.4< 5.4.0-1100.112~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded) | < 5.15.0-1054.60
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.15< 5.15.0-1049.53~20.04.2
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< 5.4.0-1035.39 | < 5.15.0-1027.31

Show all 110

Chainguard83 products

hyperv-daemons-6.18All versions (No fix recorded)
hyperv-daemons-genericAll versions (No fix recorded)
linux-aws-6.12< 6.12.65-r0 | All versions (No fix recorded)
linux-aws-6.12-boot-installedAll versions (No fix recorded)
linux-aws-6.12-fips-boot-installedAll versions (No fix recorded)

linux-aws-6.12-headersAll versions (No fix recorded)
linux-aws-6.12-modulesAll versions (No fix recorded)
linux-aws-6.18< 6.18.10-r0 | All versions (No fix recorded)
linux-aws-6.18-boot-installedAll versions (No fix recorded)
linux-aws-6.18-fips-boot-installedAll versions (No fix recorded)
linux-aws-6.18-headersAll versions (No fix recorded)
linux-aws-6.18-modulesAll versions (No fix recorded)
linux-aws-generic< 6.18.5-r0 | All versions (No fix recorded)
linux-aws-generic-boot-installedAll versions (No fix recorded)
linux-aws-generic-fips-boot-installedAll versions (No fix recorded)
linux-aws-generic-headersAll versions (No fix recorded)
linux-aws-generic-modulesAll versions (No fix recorded)
linux-azure-6.12All versions (No fix recorded) | < 6.12.65-r1
linux-azure-6.18All versions (No fix recorded)
linux-azure-6.18-boot-installedAll versions (No fix recorded)
linux-azure-6.18-fips-boot-installedAll versions (No fix recorded)
linux-azure-6.18-headersAll versions (No fix recorded)
linux-azure-6.18-modulesAll versions (No fix recorded)
linux-azure-generic< 6.18.5-r0 | All versions (No fix recorded)
linux-azure-generic-boot-installedAll versions (No fix recorded)
linux-azure-generic-fips-boot-installedAll versions (No fix recorded)
linux-azure-generic-headersAll versions (No fix recorded)
linux-azure-generic-modulesAll versions (No fix recorded)
linux-desktop-6.18All versions (No fix recorded)
linux-desktop-6.18-bootcAll versions (No fix recorded)
linux-desktop-6.18-bootc-boot-installedAll versions (No fix recorded)
linux-desktop-6.18-headersAll versions (No fix recorded)
linux-desktop-6.18-modulesAll versions (No fix recorded)
linux-desktop-7.2All versions (No fix recorded)
linux-desktop-7.2-bootcAll versions (No fix recorded)
linux-desktop-7.2-bootc-boot-installedAll versions (No fix recorded)
linux-desktop-7.2-headersAll versions (No fix recorded)
linux-desktop-7.2-modulesAll versions (No fix recorded)
linux-firecracker-6.18All versions (No fix recorded)
linux-gcp-6.12< 6.12.65-r0 | All versions (No fix recorded)
linux-gcp-6.18< 6.18.10-r0 | All versions (No fix recorded)
linux-gcp-6.18-boot-installedAll versions (No fix recorded)
linux-gcp-6.18-fips-boot-installedAll versions (No fix recorded)
linux-gcp-6.18-headersAll versions (No fix recorded)
linux-gcp-6.18-modulesAll versions (No fix recorded)
linux-gcp-genericAll versions (No fix recorded) | < 6.18.5-r0
linux-gcp-generic-boot-installedAll versions (No fix recorded)
linux-gcp-generic-fips-boot-installedAll versions (No fix recorded)
linux-gcp-generic-headersAll versions (No fix recorded)
linux-gcp-generic-modulesAll versions (No fix recorded)
linux-microvm-6.18All versions (No fix recorded)
linux-microvm-6.18-image-compressedAll versions (No fix recorded)
linux-microvm-6.18-image-uncompressedAll versions (No fix recorded)
linux-microvm-6.18-loadpin-testAll versions (No fix recorded)
linux-microvm-6.18-modulesAll versions (No fix recorded)
linux-microvm-7.3All versions (No fix recorded)
linux-microvm-7.3-image-compressedAll versions (No fix recorded)
linux-microvm-7.3-image-uncompressedAll versions (No fix recorded)
linux-microvm-7.3-modulesAll versions (No fix recorded)
linux-qemu-6.12< 6.12.71-r0
linux-qemu-6.18< 6.18.10-r0
linux-qemu-genericAll versions (No fix recorded) | < 6.18.5-r0
linux-qemu-generic-bootc-boot-installed< 6.18.5-r0
linux-qemu-melange< 6.18.16-r0
linux-qemu-rc< 6.19_rc1-r2 | < 6.18_rc7-r3 | < 6.19_rc1-r0 | < 6.19_rc3-r0 | < 6.19_rc1-r1 | < 6.19_rc5-r0 | < 6.19_rc4-r0 | < 6.18_rc6-r0 | All versions (No fix recorded) | < 6.18_rc7-r2 | < 6.18_rc5-r0 | < 6.18_rc5-r1 | < 6.19_rc2-r0
linux-qemu-rc-boot-installedAll versions (No fix recorded)
linux-qemu-rc-fips-boot-installedAll versions (No fix recorded)
linux-qemu-rc-headersAll versions (No fix recorded)
linux-qemu-rc-modulesAll versions (No fix recorded)
linux-raspberry-piAll versions (No fix recorded)
linux-raspberry-pi-4All versions (No fix recorded)
linux-raspberry-pi-4-boot-configurationAll versions (No fix recorded)
linux-raspberry-pi-4-bootcAll versions (No fix recorded)
linux-raspberry-pi-boot-configurationAll versions (No fix recorded)
linux-raspberry-pi-bootcAll versions (No fix recorded)
linux-server-7.2All versions (No fix recorded)
linux-server-7.2-bootcAll versions (No fix recorded)
linux-server-7.2-bootc-boot-installedAll versions (No fix recorded)
linux-server-7.2-headersAll versions (No fix recorded)
linux-server-7.2-modulesAll versions (No fix recorded)
linux-vmware-6.12< 6.12.71-r0
linux-vmware-6.18< 6.18.10-r0
linux-vmware-generic< 6.18.5-r0 | All versions (No fix recorded)