synced 1 MIN AGO
01 Record

CVE-2023-32629

Local privilege escalation vulnerability in Ubuntu Kernels overlayfs ovl_copy_up_meta_inode_data skip permission checks when calling ovl_do_setxattr on Ubuntu kernels

HighPUBLISHEDCNA: canonical
CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
View raw JSON

02 Description

Local privilege escalation vulnerability in Ubuntu Kernels overlayfs ovl_copy_up_meta_inode_data skip permission checks when calling ovl_do_setxattr on Ubuntu kernels

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
8.83% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 95.1% of scored records. A rank, not a probability.
NVD base score
7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. 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
2023-07-26 01:59Z3 YR AGO
Last updated
2025-02-13 16:54Z1 YR AGO
Reserved
2023-06-29
Assigning CNA
canonical
Record state
PUBLISHED
Severity
High (CVSS 7.8)
CNA CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
  • CWE-863Incorrect AuthorizationClass
Data version
5.1
Document digest
afc108c00fed4e74c353d45263a9e56c1f96f18c2b46a28ce54b88cd06b92af6

05 Affected products

VendorProductVersionsPlatforms
CanonicalUbuntu KernelNot specifiedLinux
canonicalubantu_kernel0 to < .2.0-26.26, 0 to < 6.0.0-1020.20, 0 to < 5.4.0-155.172—

06 References

07 Fixed in

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-hwe-edge
    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
    Fixed in 5.4.0-155.172
  • linux-aws
    Fixed in 5.4.0-1106.114
  • linux-aws-5.11
    No fix yet
  • linux-aws-5.13
    No fix yet
  • linux-aws-5.8
    No fix yet
  • linux-azure
    Fixed in 5.4.0-1112.118
  • linux-azure-5.11
    No fix yet
  • linux-azure-5.13
    No fix yet
  • linux-azure-5.8
    No fix yet
  • linux-bluefield
    Fixed in 5.4.0-1068.74
  • linux-gcp
    Fixed in 5.4.0-1109.118
  • linux-gcp-5.11
    No fix yet
  • linux-gcp-5.13
    No fix yet
  • linux-gcp-5.8
    No fix yet
  • linux-gke
    Fixed in 5.4.0-1104.111
  • linux-gke-5.15
    No fix yet
  • linux-gkeop
    Fixed in 5.4.0-1073.77
  • linux-gkeop-5.15
    No fix yet
  • linux-hwe-5.11
    No fix yet
  • linux-hwe-5.13
    No fix yet
  • linux-hwe-5.8
    No fix yet
  • linux-ibm
    Fixed in 5.4.0-1053.58
  • linux-intel-5.13
    No fix yet
  • linux-iot
    Fixed in 5.4.0-1018.19
  • linux-kvm
    Fixed in 5.4.0-1095.101
  • 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
    Fixed in 5.4.0-1105.114
  • linux-oracle-5.11
    No fix yet
  • linux-oracle-5.13
    No fix yet
  • linux-oracle-5.8
    No fix yet
  • linux-raspi
    Fixed in 5.4.0-1090.101
  • linux-raspi2
    No fix yet
  • linux-riscv
    No fix yet
  • linux-riscv-5.11
    No fix yet
  • linux-riscv-5.8
    No fix yet
  • linux-xilinx-zynqmp
    Fixed in 5.4.0-1026.30

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 5.15.0-177.187
  • linux-aws
    Fixed in 5.15.0-1106.113
  • linux-aws-5.19
    Fixed in 5.19.0-1029.30~22.04.1
  • linux-aws-6.2
    Fixed in 6.2.0-1008.8~22.04.1
  • linux-aws-6.5
    No fix yet
  • linux-azure
    Fixed in 5.15.0-1111.120
  • linux-azure-5.19
    No fix yet
  • linux-azure-6.2
    Fixed in 6.2.0-1008.8~22.04.1
  • linux-azure-6.5
    No fix yet
  • linux-azure-fde
    Fixed in 5.15.0-1114.123
  • linux-azure-fde-5.19
    No fix yet
  • linux-gcp
    Fixed in 5.15.0-1106.115
  • linux-gcp-5.19
    Fixed in 5.19.0-1030.32~22.04.1
  • linux-gcp-6.2
    Fixed in 6.2.0-1010.10~22.04.1
  • linux-gcp-6.5
    No fix yet
  • linux-gke
    Fixed in 5.15.0-1102.108
  • linux-gkeop
    Fixed in 5.15.0-1089.97
  • linux-hwe-5.19
    Fixed in 5.19.0-50.50
  • linux-hwe-6.2
    Fixed in 6.2.0-26.26~22.04.1
  • linux-hwe-6.5
    No fix yet
  • linux-ibm
    Fixed in 5.15.0-1100.103
  • linux-intel-iot-realtime
    No fix yet
  • linux-intel-iotg
    Fixed in 5.15.0-1101.107
  • linux-kvm
    Fixed in 5.15.0-1098.103
  • linux-lowlatency
    Fixed in 5.15.0-177.187
  • linux-lowlatency-hwe-5.19
    Fixed in 5.19.0-1030.30
  • linux-lowlatency-hwe-6.2
    Fixed in 6.2.0-1009.9~22.04.1
  • linux-lowlatency-hwe-6.5
    No fix yet
  • linux-nvidia
    Fixed in 5.15.0-1101.102
  • linux-nvidia-6.2
    Fixed in 6.2.0-1009.9
  • linux-nvidia-6.5
    No fix yet
  • linux-nvidia-tegra
    Fixed in 5.15.0-1058.58
  • linux-nvidia-tegra-igx
    Fixed in 5.15.0-1047.47
  • linux-oem-5.17
    No fix yet
  • linux-oem-6.0
    Fixed in 6.0.0-1020.20
  • linux-oem-6.1
    Fixed in 6.1.0-1019.19
  • linux-oem-6.5
    No fix yet
  • linux-oracle
    Fixed in 5.15.0-1103.109
  • linux-oracle-6.5
    No fix yet
  • linux-raspi
    Fixed in 5.15.0-1100.103

7 further packages in Ubuntu 22.04 LTS not shown (first 40 listed).

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 5.15.0-1090.92

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

Ubuntu Pro 18.04 LTS

  • linux-aws-5.4
    Fixed in 5.4.0-1106.114~18.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-azure-5.4
    Fixed in 5.4.0-1112.118~18.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-gcp-5.4
    Fixed in 5.4.0-1109.118~18.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-hwe-5.4
    Fixed in 5.4.0-155.172~18.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-ibm-5.4
    Fixed in 5.4.0-1053.58~18.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-oracle-5.4
    Fixed in 5.4.0-1105.114~18.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-raspi-5.4
    Fixed in 5.4.0-1090.101~18.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

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

Ubuntu Pro 20.04 LTS

  • linux-aws-5.15
    Fixed in 5.15.0-1106.113~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-azure-5.15
    Fixed in 5.15.0-1111.120~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-gcp-5.15
    Fixed in 5.15.0-1106.115~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-hwe-5.15
    Fixed in 5.15.0-177.187~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-ibm-5.15
    Fixed in 5.15.0-1100.103~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-intel-iotg-5.15
    Fixed in 5.15.0-1101.107~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-lowlatency-hwe-5.15
    Fixed in 5.15.0-177.187~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-nvidia-tegra-5.15
    Fixed in 5.15.0-1058.58~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-oracle-5.15
    Fixed in 5.15.0-1104.110~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
  • linux-riscv-5.15
    Fixed in 5.15.0-1100.104~20.04.1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

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

Ubuntu Pro FIPS-updates 20.04 LTS

  • linux-aws-fips
    Fixed in 5.4.0-1106.114+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-azure-fips
    Fixed in 5.4.0-1112.118+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-fips
    Fixed in 5.4.0-1081.90
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-gcp-fips
    Fixed in 5.4.0-1109.118+fips1
    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.

Ubuntu Pro FIPS-updates 22.04 LTS

  • linux-aws-fips
    Fixed in 5.15.0-1106.113+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-azure-fips
    Fixed in 5.15.0-1111.120+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-fips
    Fixed in 5.15.0-177.187+fips1
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-gcp-fips
    Fixed in 5.15.0-1106.115+fips1
    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.

Ubuntu Pro FIPS 20.04 LTS

  • linux-aws-fips
    No fix yet
  • linux-azure-fips
    No fix yet
  • linux-fips
    No fix yet
  • linux-gcp-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 5.15.0-1098.100
    Available with Ubuntu Pro: https://ubuntu.com/pro
  • linux-realtime
    Fixed in 5.15.0-1105.114
    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.