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CVE-2021-4093 (High) detected in linuxlinux-4.19.313, linuxlinux-4.19.313 #94

Open mend-bolt-for-github[bot] opened 5 months ago

mend-bolt-for-github[bot] commented 5 months ago

CVE-2021-4093 - High Severity Vulnerability

Vulnerable Libraries - linuxlinux-4.19.313, linuxlinux-4.19.313

Vulnerability Details

A flaw was found in the KVM's AMD code for supporting the Secure Encrypted Virtualization-Encrypted State (SEV-ES). A KVM guest using SEV-ES can trigger out-of-bounds reads and writes in the host kernel via a malicious VMGEXIT for a string I/O instruction (for example, outs or ins) using the exit reason SVM_EXIT_IOIO. This issue results in a crash of the entire system or a potential guest-to-host escape scenario.

Publish Date: 2022-02-18

URL: CVE-2021-4093

CVSS 3 Score Details (8.8)

Base Score Metrics: - Exploitability Metrics: - Attack Vector: Local - Attack Complexity: Low - Privileges Required: Low - User Interaction: None - Scope: Changed - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: High - Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://www.linuxkernelcves.com/cves/CVE-2021-4093

Release Date: 2022-02-18

Fix Resolution: v5.14.15,v5.15-rc7

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mend-bolt-for-github[bot] commented 4 months ago

:heavy_check_mark: This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.

mend-bolt-for-github[bot] commented 3 months ago

:information_source: This issue was automatically re-opened by Mend because the vulnerable library in the specific branch(es) has been detected in the Mend inventory.

mend-bolt-for-github[bot] commented 2 months ago

:heavy_check_mark: This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.

mend-bolt-for-github[bot] commented 2 months ago

:information_source: This issue was automatically re-opened by Mend because the vulnerable library in the specific branch(es) has been detected in the Mend inventory.

mend-bolt-for-github[bot] commented 1 month ago

:heavy_check_mark: This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.

mend-bolt-for-github[bot] commented 4 weeks ago

:information_source: This issue was automatically re-opened by Mend because the vulnerable library in the specific branch(es) has been detected in the Mend inventory.