CVE-2023-32629

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 8.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-07-26 · updated 2026-06-17
Weakness: CWE-863

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

Affected products

Canonical Ubuntu Linux: 23.04

References

http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-32629
https://lists.ubuntu.com/archives/kernel-team/2023-July/140920.html
https://ubuntu.com/security/notices/USN-6250-1
https://wiz.io/blog/ubuntu-overlayfs-vulnerability
http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-32629
https://lists.ubuntu.com/archives/kernel-team/2023-July/140920.html
https://ubuntu.com/security/notices/USN-6250-1
https://wiz.io/blog/ubuntu-overlayfs-vulnerability

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