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CVE-2017-18202

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Date: February 27, 2018

The __oom_reap_task_mm function in mm/oom_kill.c in the Linux kernel before 4.14.4 mishandles gather operations, which allows attackers to cause a denial of service (TLB entry leak or use-after-free) or possibly have unspecified other impact by triggering a copy_to_user call within a certain time window.

Language: C

Severity Score

Related Resources (10)

https://people.canonical.com/~ubuntu-security/cve/CVE-2017-18202
https://nvd.nist.gov/vuln/detail/CVE-2017-18202
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.4
https://access.redhat.com/security/cve/CVE-2017-18202
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=687cb0884a714ff484d038e9190edc874edcf146
https://github.com/torvalds/linux/commit/687cb0884a714ff484d038e9190edc874edcf146
https://access.redhat.com/errata/RHSA-2018:2772
http://www.securityfocus.com/bid/103161
https://security-tracker.debian.org/tracker/CVE-2017-18202
https://www.mend.io/vulnerability-database/CVE-2017-18202

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

Top Fix

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Upgrade to version linux-yocto - 4.8.26+gitAUTOINC+1c60e003c7_27efc3ba68

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
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): MEDIUM
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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