THREATPORT/VULNERABILITY/CVE-2023-32629
HIGH SEVERITY

CVE-2023-32629

Ubuntu Linux vulnerability

CVSS
7.8
EPSS
8.9%
EPSS pct
95th
Exploited
No known
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 vendor
Canonical
Affected product
Ubuntu Linux
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-863 — Incorrect Authorization
Published
2023-07-26

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with local access, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 8.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2023-32629

  • Confirm whether Canonical Ubuntu Linux is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2023-32629.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2023-32629

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