The overlayfs implementation in the Linux kernel through 4.5.2 does not properly maintain POSIX ACL xattr data, which allows local users to gain privileges by leveraging a group-writable setgid directory.
References
Link | Resource |
---|---|
http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-1575.html | Third Party Advisory |
http://www.halfdog.net/Security/2016/UserNamespaceOverlayfsXattrSetgidPrivilegeEscalation/ | Exploit Third Party Advisory |
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e9f57ebcba563e0cd532926cab83c92bb4d79360 | Patch Vendor Advisory |
https://launchpad.net/bugs/1534961 | Third Party Advisory |
http://www.openwall.com/lists/oss-security/2016/02/24/7 | Mailing List Third Party Advisory |
http://www.openwall.com/lists/oss-security/2021/10/18/1 | Mailing List Third Party Advisory |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Information
Published : 2016-05-02 03:59
Updated : 2022-04-18 11:01
NVD link : CVE-2016-1575
Mitre link : CVE-2016-1575
JSON object : View
CWE
CWE-269
Improper Privilege Management
Products Affected
canonical
- ubuntu_linux
- ubuntu_core
- ubuntu_touch
linux
- linux_kernel