Description
Local privilege escalation vulnerability in Ubuntu Kernels overlayfs ovl_copy_up_meta_inode_data skip permission checks when calling ovl_do_setxattr on Ubuntu kernels
CVSS breakdown
CVSS 3.1
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- Canonical / Ubuntu Kernel0 – 6.2.0-26.26
- Canonical / Ubuntu Kernel0 – 6.0.0-1020.20
- Canonical / Ubuntu Kernel0 – 5.4.0-155.172
References
- VENDOR_ADVISORYhttps://ubuntu.com/security/notices/USN-6250-1
- MAILING_LISThttps://lists.ubuntu.com/archives/kernel-team/2023-July/140920.html
- MISChttps://wiz.io/blog/ubuntu-overlayfs-vulnerability
- CONFIRMhttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-32629
- EXPLOIThttp://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html