Vulnerability Description
An issue was discovered in the Linux kernel through 4.17.2. The filter parsing in kernel/trace/trace_events_filter.c could be called with no filter, which is an N=0 case when it expected at least one line to have been read, thus making the N-1 index invalid. This allows attackers to cause a denial of service (slab out-of-bounds write) or possibly have unspecified other impact via crafted perf_event_open and mmap system calls.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.17, < 4.17.4 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81f9c4Vendor Advisory
- http://www.securityfocus.com/bid/104544Third Party AdvisoryVDB Entry
- https://bugzilla.kernel.org/show_bug.cgi?id=200019Issue TrackingVendor Advisory
- https://github.com/lcytxw/bug_repro/tree/master/bug_200019ExploitThird Party Advisory
- https://github.com/torvalds/linux/commit/81f9c4e4177d31ced6f52a89bb70e93bfb77ca0PatchThird Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81f9c4Vendor Advisory
- http://www.securityfocus.com/bid/104544Third Party AdvisoryVDB Entry
- https://bugzilla.kernel.org/show_bug.cgi?id=200019Issue TrackingVendor Advisory
- https://github.com/lcytxw/bug_repro/tree/master/bug_200019ExploitThird Party Advisory
- https://github.com/torvalds/linux/commit/81f9c4e4177d31ced6f52a89bb70e93bfb77ca0PatchThird Party Advisory
FAQ
What is CVE-2018-12714?
CVE-2018-12714 is a vulnerability with a CVSS score of 9.8 (CRITICAL). An issue was discovered in the Linux kernel through 4.17.2. The filter parsing in kernel/trace/trace_events_filter.c could be called with no filter, which is an N=0 case when it expected at least one ...
How severe is CVE-2018-12714?
CVE-2018-12714 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2018-12714?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.