SB2016050222 - Information exposure in Linux kernel fs
Published: May 2, 2016
Security Bulletin ID
SB2016050222
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Information exposure (CVE-ID: CVE-2015-4176)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to information exposure error within the namespace_lock(), umount_tree() and __detach_mounts() functions in fs/namespace.c. A local user can gain access to sensitive information.
Remediation
Install update from vendor's website.
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e0c9c0afd2fc958ffa34b697972721d81df8a56f
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.2
- http://www.openwall.com/lists/oss-security/2015/06/04/5
- https://bugzilla.redhat.com/show_bug.cgi?id=1249442
- https://github.com/torvalds/linux/commit/e0c9c0afd2fc958ffa34b697972721d81df8a56f