Vulnerability Description
Race condition in the environ_read function in fs/proc/base.c in the Linux kernel before 4.5.4 allows local users to obtain sensitive information from kernel memory by reading a /proc/*/environ file during a process-setup time interval in which environment-variable copying is incomplete.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 4.5.3 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8148a7Issue TrackingPatchThird Party Advisory
- http://source.android.com/security/bulletin/2016-11-01.htmlThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.4Release NotesVendor Advisory
- http://www.securityfocus.com/bid/94138Third Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-3159-1
- http://www.ubuntu.com/usn/USN-3159-2
- https://bugzilla.kernel.org/show_bug.cgi?id=116461Issue Tracking
- https://forums.grsecurity.net/viewtopic.php?f=3&t=4363Issue Tracking
- https://github.com/torvalds/linux/commit/8148a73c9901a8794a50f950083c00ccf97d43bIssue TrackingPatchThird Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8148a7Issue TrackingPatchThird Party Advisory
- http://source.android.com/security/bulletin/2016-11-01.htmlThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.4Release NotesVendor Advisory
- http://www.securityfocus.com/bid/94138Third Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-3159-1
- http://www.ubuntu.com/usn/USN-3159-2
FAQ
What is CVE-2016-7916?
CVE-2016-7916 is a vulnerability with a CVSS score of 5.5 (MEDIUM). Race condition in the environ_read function in fs/proc/base.c in the Linux kernel before 4.5.4 allows local users to obtain sensitive information from kernel memory by reading a /proc/*/environ file d...
How severe is CVE-2016-7916?
CVE-2016-7916 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-7916?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.