Buffer overflow in Linux Kernel
CVE-2018-12714
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.051 (92.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.052 · newest: 0.051 · change: -0.001
Affected products
Weakness classification (CWE)
References
- github.com/lcytxw/bug_repro/tree/master/bug_200019 (Exploit, Third Party Advisory)
- github.com/torvalds/linux/commit/81f9c4e4177d31ced6f52a89bb70e93bfb77ca03 (Patch, Third Party Advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Vendor Advisory)
- bugzilla.kernel.org/show_bug.cgi (Issue Tracking, Vendor Advisory)
- www.securityfocus.com/bid/104544 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2018-12714?
- CVE-2018-12714 is a critical-severity vulnerability in Linux Kernel, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2018-06-24.
- How severe is CVE-2018-12714?
- Critical severity. CVSS v3 base score is 9.8 out of 10.