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CVE-2017-18255

Good to know:

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Date: March 31, 2018

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.

Language: C

Severity Score

Related Resources (10)

http://www.securityfocus.com/bid/103607
https://people.canonical.com/~ubuntu-security/cve/CVE-2017-18255
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1572e45a924f254d9570093abde46430c3172e3d
https://usn.ubuntu.com/3696-2/
https://usn.ubuntu.com/3696-1/
https://usn.ubuntu.com/3754-1/
https://nvd.nist.gov/vuln/detail/CVE-2017-18255
https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html
https://github.com/torvalds/linux/commit/1572e45a924f254d9570093abde46430c3172e3d
https://www.mend.io/vulnerability-database/CVE-2017-18255

Severity Score

Weakness Type (CWE)

Integer Overflow or Wraparound

CWE-190

Top Fix

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Upgrade Version

Upgrade to version linux-yocto - 4.8.12+gitAUTOINC+926c93ae07_021b4aef55;linux-yocto - 4.10+gitAUTOINC+805ea440c7_b259a5d744

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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