Integer Overflow or Wraparound Affecting kernel-uek-devel package, versions <0:4.1.12-124.24.1.el7uek
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ORACLE7-KERNELUEKDEVEL-2543758
- published10 Apr 2022
- disclosed31 Mar 2018
Introduced: 31 Mar 2018
CVE-2017-18255 (opens in a new tab)How to fix?
Upgrade Oracle:7 kernel-uek-devel to version 0:4.1.12-124.24.1.el7uek or higher.
This issue was patched in ELSA-2019-4315.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-uek-devel package and not the kernel-uek-devel package as distributed by Oracle.
See How to fix? for Oracle:7 relevant fixed versions and status.
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.
References
- https://linux.oracle.com/cve/CVE-2017-18255.html
- https://linux.oracle.com/errata/ELSA-2019-4315.html
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1572e45a924f254d9570093abde46430c3172e3d
- http://www.securityfocus.com/bid/103607
- https://github.com/torvalds/linux/commit/1572e45a924f254d9570093abde46430c3172e3d
- https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html
- https://usn.ubuntu.com/3696-1/
- https://usn.ubuntu.com/3696-2/
- https://usn.ubuntu.com/3754-1/