CVE-2023-44466: linux linux_kernel

Analyzed

AliasesUBUNTU-CVE-2023-44466DEBIAN-CVE-2023-44466

Published 29-09-2023Last modified 02-08-2024

Vulnerability summary

CVE-2023-44466 is a high (CVSS 8.8) vulnerability in linux linux_kernel. EPSS estimates a 44.89% chance of exploitation in the next 30 days, higher than 98.7% of scored vulnerabilities. 1 public exploit is recorded.

Priority

Prioritisepublic exploit

Public exploit (GitHub, Date unknown)

Source freshness unavailable

How is this decided?

CVSS score

8.8/10

010

High · v3.1 (NVD)

EPSS score

44.89%

0%100%

High · -0.70 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits1github

Advisory lineage

Upstream 0 · Downstream 13 · Related 8

RHSA-2023:4789 RHSA-2023:4801 RHSA-2023:4962 RHSA-2023:5069 RHSA-2023:5244 USN-6416-1+7 more

Timeline

29-09-2023
PublishedVulnerability first disclosed.
02-08-2024
Last modifiedVulnerability information updated.

Description

An issue was discovered in net/ceph/messenger_v2.c in the Linux kernel before 6.4.5. There is an integer signedness error, leading to a buffer overflow and remote code execution via HELLO or one of the AUTH frames. This occurs because of an untrusted length taken from a TCP packet in ceph_decode_32.

CVSS metrics

4 scores · 3 sources · 2 versions

v4.09.2v3.18.8

EPSS trend

Probability

44.89%

Chance of exploitation in the next 30 days

Percentile

99%

Versus all other CVEs

30-day change

Decrease -0.70 pp

From 45.59% 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

1 found

githubUnverified
Security Research
Maturity: poc

Weaknesses

CWE · root cause

CWE-120Buffer Copy without Checking Size of InputThe product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

Affected systems

Version check

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

Ubuntu91 products

linux< 5.15.0-86.96
linux-allwinner-5.19All versions (No fix recorded)
linux-aws< 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-5.8All versions (No fix recorded)
linux-aws-6.2< 6.2.0-1015.15~22.04.1
linux-azureAll versions (No fix recorded) | < 5.15.0-1049.56
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-5.8All versions (No fix recorded)
linux-azure-6.2< 6.2.0-1016.16~22.04.1
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-6.2< 6.2.0-1016.16~22.04.1.1
linux-bluefield< 5.15.0-1027.29
linux-fipsAll versions (No fix recorded)
linux-gcpAll versions (No fix recorded) | < 5.15.0-1044.52
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-5.8All versions (No fix recorded)
linux-gcp-6.2< 6.2.0-1018.20~22.04.1
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< 5.15.0-1030.35
linux-gkeop-5.15< 5.15.0-1030.35~20.04.1
linux-gkeop-5.4All versions (No fix recorded)
linux-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< 5.15.0-86.96~20.04.1
linux-hwe-5.19All versions (No fix recorded)
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-6.2< 6.2.0-36.37~22.04.1
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.15.0-1040.43
linux-ibm-5.15< 5.15.0-1040.43~20.04.1
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-kvm< 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-6.2< 6.2.0-1016.16~22.04.1
linux-nvidia< 5.15.0-1037.37
linux-nvidia-6.2< 6.2.0-1011.11
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-6.1< 6.1.0-1019.19
linux-oracle< 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-5.8All versions (No fix recorded)
linux-raspi< 5.15.0-1040.43
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-6.2< 6.2.0-1009.10~22.04.1
linux-xilinx-zynqmp< 5.15.0-1025.29

Show all 91

Debian1 product

linux< 6.1.52-1 | < 6.4.11-1

Linux1 product

linux_kernel≥ 5.11, < 5.15.121 | ≥ 5.16, < 6.1.40 | ≥ 6.2, < 6.4.5

3 vendors · 93 products

References

18 links

github.com/google/security-research/security/advisories/GHSA-jg27-jx6w-xwphREPORTExploitThird Party Advisory
www.spinics.net/lists/ceph-devel/msg57909.htmlREPORTMailing ListPatch
github.com/torvalds/linux/commit/a282a2f10539dce2aa619e71e1817570d557fc97REPORTPatch
git.kernel.org/cgit/…REPORTMailing ListPatch
security.netapp.com/advisory/ntap-20231116-0003/Third Party Advisory
ubuntu.com/security/CVE-2023-44466REPORT
git.kernel.org/linus/a282a2f10539dce2aa619e71e1817570d557fc97REPORT
ubuntu.com/security/notices/USN-6416-1Advisory
ubuntu.com/security/notices/USN-6416-2Advisory
ubuntu.com/security/notices/USN-6416-3Advisory

Show all 18 references

ubuntu.com/security/notices/USN-6445-1Advisory
ubuntu.com/security/notices/USN-6445-2Advisory
ubuntu.com/security/notices/USN-6464-1Advisory
ubuntu.com/security/notices/USN-6466-1Advisory
ubuntu.com/security/notices/USN-6520-1Advisory
www.cve.org/CVERecord?id=CVE-2023-44466REPORT
security-tracker.debian.org/tracker/CVE-2023-44466Advisory
nvd.nist.gov/vuln/detail/CVE-2023-44466OvalAdvisory