RenukaSelvar / kernel_smp

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CVE-2023-4921 (High) detected in linuxlinux-4.19.313, linuxlinux-4.19.313 #452

Open mend-bolt-for-github[bot] opened 3 months ago

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

CVE-2023-4921 - High Severity Vulnerability

Vulnerable Libraries - linuxlinux-4.19.313, linuxlinux-4.19.313

Vulnerability Details

A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation. When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in agg_dequeue(). We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8.

Publish Date: 2023-09-12

URL: CVE-2023-4921

CVSS 3 Score Details (7.8)

Base Score Metrics: - Exploitability Metrics: - Attack Vector: Local - Attack Complexity: Low - Privileges Required: Low - User Interaction: None - Scope: Unchanged - 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-2023-4921

Release Date: 2023-09-12

Fix Resolution: v4.14.326,v4.19.295,v5.4.257,v5.10.195,v5.15.132,v6.1.54,v6.6-rc1


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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 1 month 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.