CVE-2023-2640
On Ubuntu kernels carrying both c914c0e27eb0 and "UBUNTU: SAUCE: overlayfs: Skip permission checking for trusted.overlay
On Ubuntu kernels carrying both c914c0e27eb0 and "UBUNTU: SAUCE: overlayfs: Skip permission checking for trusted.overlayfs.* xattrs", an unprivileged user may set privileged extended attributes on the mounted files, leading them to be set on the upper files without the appropriate security checks.
HIGH · CVSS 7.8
EPSS 0.9239
Act now
- EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
- EPSS percentile: top 0% of all CVEs by exploitation likelihood
- Public exploit or PoC is available
- CVSS base score ≥ 7.0
Sigma rules0
YARA rules0