Vulnerability Description
Use-after-free vulnerability in mm/percpu.c in the Linux kernel through 4.6 allows local users to cause a denial of service (BUG) or possibly have unspecified other impact via crafted use of the mmap and bpf system calls.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.18, < 3.18.37 |
| Canonical | Ubuntu Linux | 14.04 |
References
- http://rhn.redhat.com/errata/RHSA-2016-2574.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2584.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/05/12/6ExploitMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/90625Third Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-3053-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3054-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3055-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3056-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3057-1Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1335889Issue TrackingThird Party AdvisoryVDB Entry
- https://lkml.org/lkml/2016/4/17/125ExploitThird Party Advisory
- https://source.android.com/security/bulletin/2016-12-01.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2574.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2584.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/05/12/6ExploitMailing ListThird Party Advisory
FAQ
What is CVE-2016-4794?
CVE-2016-4794 is a vulnerability with a CVSS score of 7.8 (HIGH). Use-after-free vulnerability in mm/percpu.c in the Linux kernel through 4.6 allows local users to cause a denial of service (BUG) or possibly have unspecified other impact via crafted use of the mmap ...
How severe is CVE-2016-4794?
CVE-2016-4794 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-4794?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Canonical Ubuntu Linux.