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CVE-2020-12768

Good to know:

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Date: May 9, 2020

** 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.

Language: C

Severity Score

Related Resources (12)

https://nvd.nist.gov/vuln/detail/CVE-2020-12768
https://access.redhat.com/security/cve/CVE-2020-12768
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-12768
https://bugzilla.suse.com/show_bug.cgi?id=1171736#c3
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6
https://security-tracker.debian.org/tracker/CVE-2020-12768
https://usn.ubuntu.com/4412-1/
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d80b64ff297e40c2b6f7d7abc1b3eba70d22a068
https://usn.ubuntu.com/4411-1/
https://www.debian.org/security/2020/dsa-4699
https://usn.ubuntu.com/4413-1/
https://www.mend.io/vulnerability-database/CVE-2020-12768

Severity Score

Weakness Type (CWE)

Missing Release of Memory after Effective Lifetime

CWE-401

Missing Release of Resource after Effective Lifetime

CWE-772

Top Fix

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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): PARTIAL
Additional information:

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