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CVE-2020-36313

Date: April 6, 2021

An issue was discovered in the Linux kernel before 5.7. The KVM subsystem allows out-of-range access to memslots after a deletion, aka CID-0774a964ef56. This affects arch/s390/kvm/kvm-s390.c, include/linux/kvm_host.h, and virt/kvm/kvm_main.c.

Severity Score

Related Resources (6)

https://people.canonical.com/~ubuntu-security/cve/CVE-2020-36313
https://security.netapp.com/advisory/ntap-20210604-0005/
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0774a964ef561b7170d8d1b1bfe6f88002b6d219
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7
https://nvd.nist.gov/vuln/detail/CVE-2020-36313
https://www.mend.io/vulnerability-database/CVE-2020-36313

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

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): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

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

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