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.
References
Link | Resource |
---|---|
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2640 | Third Party Advisory |
https://lists.ubuntu.com/archives/kernel-team/2023-July/140923.html | Mailing List Patch |
https://ubuntu.com/security/notices/USN-6250-1 | Vendor Advisory |
https://wiz.io/blog/ubuntu-overlayfs-vulnerability | Exploit Mitigation Third Party Advisory |
Configurations
History
03 Aug 2023, 15:10
Type | Values Removed | Values Added |
---|---|---|
References | (MISC) https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-2640 - Third Party Advisory | |
References | (MISC) https://wiz.io/blog/ubuntu-overlayfs-vulnerability - Exploit, Mitigation, Third Party Advisory | |
References | (MISC) https://ubuntu.com/security/notices/USN-6250-1 - Vendor Advisory | |
References | (MISC) https://lists.ubuntu.com/archives/kernel-team/2023-July/140923.html - Mailing List, Patch | |
First Time |
Canonical ubuntu Linux
Canonical |
|
CWE | CWE-863 | |
CPE | cpe:2.3:o:canonical:ubuntu_linux:23.04:*:*:*:*:*:*:* | |
CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
26 Jul 2023, 04:24
Type | Values Removed | Values Added |
---|---|---|
New CVE |
Information
Published : 2023-07-26 02:15
Updated : 2024-02-28 20:33
NVD link : CVE-2023-2640
Mitre link : CVE-2023-2640
CVE.ORG link : CVE-2023-2640
JSON object : View
Products Affected
canonical
- ubuntu_linux
CWE
CWE-863
Incorrect Authorization