CVE-2023-2640
high · 7.8A public exploit / detection template exists
Weaponised detection is publicly available, which meaningfully raises real-world risk regardless of CVSS. nuclei-templates →
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.
7.8
CVSS
15.2%
EPSS (exploit prob.)
97th
EPSS percentile
2023-07-26
Published
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-863
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| canonical | ubuntu_linux | 23.04 |
Check a specific version with /api/v1/cve/match.
References
- 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
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2023-2640