CVE-2018-19407

The vcpu_scan_ioapic function in arch/x86/kvm/x86.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 ioapic is uninitialized.

CVSS v3.0 5.5 MEDIUM
CVSS v2.0 4.9 MEDIUM

5.5^/10

CVSS v3.0 : MEDIUM

Vector : AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.9^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:L/Au:N/C:N/I:N/A:C

Exploitability : 3.9 / Impact : 6.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://lkml.org/lkml/2018/11/20/580	Patch Third Party Advisory
http://www.securityfocus.com/bid/105987	Third Party Advisory VDB Entry
https://usn.ubuntu.com/3872-1/	Third Party Advisory
https://usn.ubuntu.com/3871-1/	Third Party Advisory
https://usn.ubuntu.com/3879-2/	Third Party Advisory
https://usn.ubuntu.com/3879-1/	Third Party Advisory
https://usn.ubuntu.com/3878-1/	Third Party Advisory
https://usn.ubuntu.com/3871-4/	Third Party Advisory
https://usn.ubuntu.com/3871-3/	Third Party Advisory
https://usn.ubuntu.com/3878-2/	Third Party Advisory
https://usn.ubuntu.com/3871-5/	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html

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Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:18.10:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::

Information

Published : 2018-11-20 16:29

Updated : 2019-03-21 09:00

NVD link : CVE-2018-19407

Mitre link : CVE-2018-19407

JSON object : View

CWE

CWE-476

NULL Pointer Dereference

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Products Affected

canonical

ubuntu_linux

linux

linux_kernel

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