CVE-2023-0386
KEVLinux Kernel Improper Ownership Management Vulnerability
7.8
HighPublished:
Last updated:
Source:secalert@redhat.com
Analyzed
Weakness (CWE)
CVSS Vector
v3.1- Attack Vector
- Local
- Attack Complexity
- Low
- Privileges Required
- Low
- User Interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Description
A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on the system.
References
secalert@redhat.com
http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.htmlsecalert@redhat.com
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f11ada10d0asecalert@redhat.com
https://lists.debian.org/debian-lts-announce/2023/06/msg00008.htmlsecalert@redhat.com
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.htmlsecalert@redhat.com
https://security.netapp.com/advisory/ntap-20230420-0004/secalert@redhat.com
https://www.debian.org/security/2023/dsa-5402af854a3a-2127-422b-91ae-364da2661108
http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.htmlaf854a3a-2127-422b-91ae-364da2661108
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f11ada10d0aaf854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2023/06/msg00008.htmlaf854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.htmlaf854a3a-2127-422b-91ae-364da2661108
https://security.netapp.com/advisory/ntap-20230420-0004/af854a3a-2127-422b-91ae-364da2661108
https://www.debian.org/security/2023/dsa-5402134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-0386