Integer overflow in Linux Kernel
CVE-2017-18255
The perf_cpu_time_max_percent_handler function in kernel/events/core.c in the Linux kernel before 4.11 allows local users to cause a denial of service (integer overflow) or possibly have unspecified other impact via a large value, as demonstrated by an incorrect sample-rate calculation.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (30.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: -0.000
Affected products
Weakness classification (CWE)
References
- usn.ubuntu.com/3696-1/ (vendor-advisory)
- usn.ubuntu.com/3754-1/ (vendor-advisory)
- lists.debian.org/debian-lts-announce/2018/07/msg00020.html (mailing-list)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Vendor Advisory)
- www.securityfocus.com/bid/103607 (vdb-entry)
- usn.ubuntu.com/3696-2/ (vendor-advisory)
- github.com/torvalds/linux/commit/1572e45a924f254d9570093abde46430c3172e3d (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-18255?
- CVE-2017-18255 is a high-severity vulnerability in Linux Kernel, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2018-03-31.
- How severe is CVE-2017-18255?
- High severity. CVSS v3 base score is 7.8 out of 10.