CVE-2020-12768

MEDIUM
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

** DISPUTED ** 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.

References

https://bugzilla.suse.com/show_bug.cgi?id=1171736#c3

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d80b64ff297e40c2b6f7d7abc1b3eba70d22a068

https://usn.ubuntu.com/4411-1/

https://usn.ubuntu.com/4412-1/

https://usn.ubuntu.com/4413-1/

https://www.debian.org/security/2020/dsa-4699

Details

Source: MITRE

Published: 2020-05-09

Updated: 2020-07-15

Type: CWE-772

Risk Information

CVSS v2

Base Score: 2.1

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

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

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

Tenable Plugins

View all (12 total)

IDNameProductFamilySeverity
142576EulerOS Virtualization 3.0.6.6 : kernel (EulerOS-SA-2020-2443)NessusHuawei Local Security Checks
high
138138Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-4413-1)NessusUbuntu Local Security Checks
medium
138137Ubuntu 18.04 LTS / 19.10 : Linux kernel vulnerabilities (USN-4412-1)NessusUbuntu Local Security Checks
medium
138136Ubuntu 20.04 : Linux kernel vulnerabilities (USN-4411-1)NessusUbuntu Local Security Checks
medium
137617SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1605-1)NessusSuSE Local Security Checks
medium
137616SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1603-1)NessusSuSE Local Security Checks
medium
137615SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1602-1)NessusSuSE Local Security Checks
medium
137613SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:1599-1)NessusSuSE Local Security Checks
medium
137608SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1587-1)NessusSuSE Local Security Checks
medium
137341Debian DSA-4699-1 : linux - security updateNessusDebian Local Security Checks
medium
137291Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5715)NessusOracle Linux Local Security Checks
critical
137290Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2020-5714)NessusOracle Linux Local Security Checks
medium