synced 10 MIN AGO
01 Record

CVE-2023-44466

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

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector

02 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

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
45.58% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 98.7% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Analyzed. NVD last modified this record on 2026-06-17.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-09-29 00:00Z3 YR AGO
Last updated
2024-08-02 20:07Z2 YR AGO
Reserved
2023-09-29
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base
  • CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
Data version
5.1
Document digest
eabd4cfa9ce8df0ec9fbed5a2f56c09cfb9f84cb0af2b0d1ce9e55c8350ccad0

05 Affected products

VendorProductVersionsPlatforms
linuxlinux_kernelNot specified—
redhatenterprise_linuxNot specified—
redhatrhel_ausNot specified—
redhatrhel_e4sNot specified—
redhatrhel_eusNot specified—
redhatrhel_tusNot specified—
redhatrhev_hypervisorNot specified—

06 References

07 Fixed in

Debian 12

  • linux
    Fixed in 6.1.52-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • linux
    Fixed in 6.4.11-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • linux
    Fixed in 6.4.11-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • linux-hwe-edge
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • linux-aws-5.0
    No fix yet
  • linux-aws-5.3
    No fix yet
  • linux-azure
    No fix yet
  • linux-azure-5.3
    No fix yet
  • linux-azure-edge
    No fix yet
  • linux-gcp
    No fix yet
  • linux-gcp-5.3
    No fix yet
  • linux-gke-4.15
    No fix yet
  • linux-gke-5.4
    No fix yet
  • linux-gkeop-5.4
    No fix yet
  • linux-hwe
    No fix yet
  • linux-oem
    No fix yet
  • linux-oracle-5.0
    No fix yet
  • linux-oracle-5.3
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • linux-aws-5.11
    No fix yet
  • linux-aws-5.13
    No fix yet
  • linux-aws-5.15
    Fixed in 5.15.0-1047.52~20.04.1
  • linux-aws-5.8
    No fix yet
  • linux-azure-5.11
    No fix yet
  • linux-azure-5.13
    No fix yet
  • linux-azure-5.15
    Fixed in 5.15.0-1049.56~20.04.1
  • linux-azure-5.8
    No fix yet
  • linux-azure-fde
    No fix yet
  • linux-gcp-5.11
    No fix yet
  • linux-gcp-5.13
    No fix yet
  • linux-gcp-5.15
    Fixed in 5.15.0-1044.52~20.04.1
  • linux-gcp-5.8
    No fix yet
  • linux-gke
    No fix yet
  • linux-gke-5.15
    No fix yet
  • linux-gkeop-5.15
    Fixed in 5.15.0-1030.35~20.04.1
  • linux-hwe-5.11
    No fix yet
  • linux-hwe-5.13
    No fix yet
  • linux-hwe-5.15
    Fixed in 5.15.0-86.96~20.04.1
  • linux-hwe-5.8
    No fix yet
  • linux-ibm-5.15
    Fixed in 5.15.0-1040.43~20.04.1
  • linux-intel-5.13
    No fix yet
  • linux-intel-iotg-5.15
    Fixed in 5.15.0-1043.49~20.04.1
  • linux-lowlatency-hwe-5.15
    Fixed in 5.15.0-86.95~20.04.1
  • linux-nvidia-tegra-5.15
    Fixed in 5.15.0-1018.18~20.04.1
  • linux-oem-5.10
    No fix yet
  • linux-oem-5.13
    No fix yet
  • linux-oem-5.14
    No fix yet
  • linux-oem-5.6
    No fix yet
  • linux-oracle-5.11
    No fix yet
  • linux-oracle-5.13
    No fix yet
  • linux-oracle-5.15
    Fixed in 5.15.0-1045.51~20.04.1
  • linux-oracle-5.8
    No fix yet
  • linux-raspi2
    No fix yet
  • linux-riscv
    No fix yet
  • linux-riscv-5.11
    No fix yet
  • linux-riscv-5.15
    Fixed in 5.15.0-1043.47~20.04.1
  • linux-riscv-5.8
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • linux
    Fixed in 5.15.0-86.96
  • linux-allwinner-5.19
    No fix yet
  • linux-aws
    Fixed in 5.15.0-1047.52
  • linux-aws-5.19
    No fix yet
  • linux-aws-6.2
    Fixed in 6.2.0-1015.15~22.04.1
  • linux-azure
    Fixed in 5.15.0-1049.56
  • linux-azure-5.19
    No fix yet
  • linux-azure-6.2
    Fixed in 6.2.0-1016.16~22.04.1
  • linux-azure-fde
    Fixed in 5.15.0-1049.56.1
  • linux-azure-fde-5.19
    No fix yet
  • linux-azure-fde-6.2
    Fixed in 6.2.0-1016.16~22.04.1.1
  • linux-gcp
    Fixed in 5.15.0-1044.52
  • linux-gcp-5.19
    No fix yet
  • linux-gcp-6.2
    Fixed in 6.2.0-1018.20~22.04.1
  • linux-gke
    Fixed in 5.15.0-1044.49
  • linux-gkeop
    Fixed in 5.15.0-1030.35
  • linux-hwe-5.19
    No fix yet
  • linux-hwe-6.2
    Fixed in 6.2.0-36.37~22.04.1
  • linux-ibm
    Fixed in 5.15.0-1040.43
  • linux-intel-iotg
    Fixed in 5.15.0-1043.49
  • linux-kvm
    Fixed in 5.15.0-1044.49
  • linux-lowlatency
    Fixed in 5.15.0-86.95
  • linux-lowlatency-hwe-5.19
    No fix yet
  • linux-lowlatency-hwe-6.2
    Fixed in 6.2.0-1016.16~22.04.1
  • linux-nvidia
    Fixed in 5.15.0-1037.37
  • linux-nvidia-6.2
    Fixed in 6.2.0-1011.11
  • linux-nvidia-tegra
    Fixed in 5.15.0-1018.18
  • linux-nvidia-tegra-igx
    Fixed in 5.15.0-1005.5
  • linux-oem-5.17
    No fix yet
  • linux-oem-6.0
    No fix yet
  • linux-oem-6.1
    Fixed in 6.1.0-1019.19
  • linux-oracle
    Fixed in 5.15.0-1045.51
  • linux-raspi
    Fixed in 5.15.0-1040.43
  • linux-realtime
    No fix yet
  • linux-riscv
    No fix yet
  • linux-riscv-5.19
    No fix yet
  • linux-starfive-5.19
    No fix yet
  • linux-starfive-6.2
    Fixed in 6.2.0-1009.10~22.04.1
  • linux-xilinx-zynqmp
    Fixed in 5.15.0-1025.29

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • linux-raspi-realtime
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Nvidia-BlueField 22.04 LTS

  • linux-bluefield
    Fixed in 5.15.0-1027.29

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro FIPS-preview 22.04 LTS

  • linux-fips
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro Realtime 22.04 LTS

  • linux-intel-iot-realtime
    Fixed in 5.15.0-1040.42
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-realtime
    Fixed in 5.15.0-1048.54
    Available with Ubuntu Pro: https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.