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CVE-2018-19406

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Date: November 20, 2018

kvm_pv_send_ipi in arch/x86/kvm/lapic.c in the Linux kernel through 4.19.2 allows local users to cause a denial of service (NULL pointer dereference and BUG) via crafted system calls that reach a situation where the apic map is uninitialized.

Language: C

Severity Score

Related Resources (5)

http://www.securityfocus.com/bid/105988
https://lkml.org/lkml/2018/11/20/411
https://nvd.nist.gov/vuln/detail/CVE-2018-19406
https://people.canonical.com/~ubuntu-security/cve/CVE-2018-19406
https://www.mend.io/vulnerability-database/CVE-2018-19406

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

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): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

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

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