CVE-2020-12768

An issue was discovered in the Linux kernel before 5.6. svm_cpu_uninit in arch/x86/kvm/svm.c has a memory leak, aka CID-d80b64ff297e. NOTE: third parties dispute this issue because it's a one-time leak at the boot, the size is negligible, and it can't be triggered at will

CVSS v3 5.5 MEDIUM
CVSS v2.0 2.1 LOW

5.5^/10

CVSS v3 : MEDIUM

Vector :

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

2.1^/10

CVSS v2.0 : LOW

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

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://bugzilla.suse.com/show_bug.cgi?id=1171736#c3	Issue Tracking Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6	Mailing List Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d80b64ff297e40c2b6f7d7abc1b3eba70d22a068	Mailing List Patch Vendor Advisory
https://usn.ubuntu.com/4411-1/	Third Party Advisory
https://usn.ubuntu.com/4412-1/	Third Party Advisory
https://usn.ubuntu.com/4413-1/	Third Party Advisory
https://www.debian.org/security/2020/dsa-4699	Third Party Advisory

Configurations

Configuration 1 (hide)

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

Configuration 2 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:19.10:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:20.04::::lts:::

Configuration 3 (hide)

cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-05-09 21:15

Updated : 2024-05-17 01:42

NVD link : CVE-2020-12768

Mitre link : CVE-2020-12768

CVE.ORG link : CVE-2020-12768

JSON object : View

Products Affected

debian

debian_linux

canonical

ubuntu_linux

linux

linux_kernel

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

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