Vulnerability Description
The proc_keys_show function in security/keys/proc.c in the Linux kernel through 4.8.2, when the GNU Compiler Collection (gcc) stack protector is enabled, uses an incorrect buffer size for certain timeout data, which allows local users to cause a denial of service (stack memory corruption and panic) by reading the /proc/keys file.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 4.8.2 |
Related Weaknesses (CWE)
References
- http://rhn.redhat.com/errata/RHSA-2017-0817.html
- http://www.openwall.com/lists/oss-security/2016/10/13/5Mailing List
- http://www.securityfocus.com/bid/93544
- https://access.redhat.com/errata/RHSA-2017:1842
- https://access.redhat.com/errata/RHSA-2017:2077
- https://access.redhat.com/errata/RHSA-2017:2669
- https://bugzilla.redhat.com/show_bug.cgi?id=1373966Issue TrackingThird Party Advisory
- https://source.android.com/security/bulletin/2017-01-01.html
- http://rhn.redhat.com/errata/RHSA-2017-0817.html
- http://www.openwall.com/lists/oss-security/2016/10/13/5Mailing List
- http://www.securityfocus.com/bid/93544
- https://access.redhat.com/errata/RHSA-2017:1842
- https://access.redhat.com/errata/RHSA-2017:2077
- https://access.redhat.com/errata/RHSA-2017:2669
- https://bugzilla.redhat.com/show_bug.cgi?id=1373966Issue TrackingThird Party Advisory
FAQ
What is CVE-2016-7042?
CVE-2016-7042 is a vulnerability with a CVSS score of 6.2 (MEDIUM). The proc_keys_show function in security/keys/proc.c in the Linux kernel through 4.8.2, when the GNU Compiler Collection (gcc) stack protector is enabled, uses an incorrect buffer size for certain time...
How severe is CVE-2016-7042?
CVE-2016-7042 has been rated MEDIUM with a CVSS base score of 6.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-7042?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.