high7.8Public exploit code
CVE-2016-2854
The aufs module for the Linux kernel 3.x and 4.x does not properly maintain POSIX ACL xattr data, which allows local users to gain privileges by leveraging a g…
Public exploit code
Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.
- AUFS (Ubuntu 15.10) - 'allow_userns' Fuse/Xattr User Namespaces Privilege Escalation2016-02-19 · local · linux
Impact
The aufs module for the Linux kernel 3.x and 4.x does not properly maintain POSIX ACL xattr data, which allows local users to gain privileges by leveraging a group-writable setgid directory.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 3.0.0 through 3.19.8 from 4.0.0 through 4.20.15 |
Weakness classification
References
- NVD record
- CVE.org record
- http://www.halfdog.net/Security/2016/AufsPrivilegeEscalationInUserNamespaces/
- http://www.openwall.com/lists/oss-security/2016/02/24/9
- http://www.securityfocus.com/bid/96838
- https://sourceforge.net/p/aufs/mailman/message/34864744/
- http://www.halfdog.net/Security/2016/AufsPrivilegeEscalationInUserNamespaces/
- http://www.openwall.com/lists/oss-security/2016/02/24/9
- http://www.securityfocus.com/bid/96838
- https://sourceforge.net/p/aufs/mailman/message/34864744/