CVE-2016-1575
First published: Mon May 02 2016(Updated: )
Last updated 24 July 2024
Credit: security@ubuntu.com security@ubuntu.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <=4.5.2 | |
| Canonical Ubuntu Core | =15.04 | |
| Canonical Ubuntu Linux | =12.04 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =15.10 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =16.10 | |
| Canonical Ubuntu Touch | =15.04 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.112-1 6.11.5-1 6.11.7-1 |
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Reference Links
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e9f57ebcba563e0cd532926cab83c92bb4d79360
- http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-1575.html
- http://www.halfdog.net/Security/2016/UserNamespaceOverlayfsXattrSetgidPrivilegeEscalation/
- http://www.openwall.com/lists/oss-security/2016/02/24/7
- http://www.openwall.com/lists/oss-security/2021/10/18/1
- https://launchpad.net/bugs/1534961
- https://launchpad.net/bugs/cve/CVE-2016-1575
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1534961
- https://security-tracker.debian.org/tracker/CVE-2016-1575
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1575
- https://nvd.nist.gov/vuln/detail/CVE-2016-1575
- https://ubuntu.com/security/CVE-2016-1575
Frequently Asked Questions
What is the vulnerability ID of this vulnerability?
The vulnerability ID is CVE-2016-1575.
What is the affected software for this vulnerability?
The affected software includes the Linux kernel versions 3.13.0-79.123, 3.19.0-51.57, and 4.2.0-30.35.
What is the description of this vulnerability?
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.
How severe is CVE-2016-1575?
The severity of CVE-2016-1575 is moderate.
How do I fix CVE-2016-1575?
To fix CVE-2016-1575, update the Linux kernel to version 4.5.3 or later.
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- version/canonical ubuntu core/15.04
- canonical/canonical ubuntu linux
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- version/canonical ubuntu linux/14.04
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- version/canonical ubuntu linux/16.04
- version/canonical ubuntu linux/16.10
- canonical/canonical ubuntu touch
- version/canonical ubuntu touch/15.04
- package-manager/debian