high7.8
CVE-2023-2640
On Ubuntu kernels carrying both c914c0e27eb0 and "UBUNTU: SAUCE: overlayfs: Skip permission checking for trusted.overlayfs.* xattrs", an unprivileged user may …
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Canonical | Ubuntu Linux | Version 23.04 |
Weakness classification
References
- NVD record
- CVE.org record
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2640
- https://lists.ubuntu.com/archives/kernel-team/2023-July/140923.html
- https://ubuntu.com/security/notices/USN-6250-1
- https://wiz.io/blog/ubuntu-overlayfs-vulnerability
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2640
- https://lists.ubuntu.com/archives/kernel-team/2023-July/140923.html
- https://ubuntu.com/security/notices/USN-6250-1
- https://wiz.io/blog/ubuntu-overlayfs-vulnerability