Trinadh465 / linux-4.19.72_CVE-2023-35828

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CVE-2023-4623 (High) detected in linuxlinux-4.19.289 - autoclosed #475

Closed mend-bolt-for-github[bot] closed 6 months ago

mend-bolt-for-github[bot] commented 11 months ago

CVE-2023-4623 - High Severity Vulnerability

Vulnerable Library - linuxlinux-4.19.289

The Linux Kernel

Library home page: https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/?wsslib=linux

Found in base branch: master

Vulnerable Source Files (2)

/net/sched/sch_hfsc.c /net/sched/sch_hfsc.c

Vulnerability Details

A use-after-free vulnerability in the Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control) component can be exploited to achieve local privilege escalation. If a class with a link-sharing curve (i.e. with the HFSC_FSC flag set) has a parent without a link-sharing curve, then init_vf() will call vttree_insert() on the parent, but vttree_remove() will be skipped in update_vf(). This leaves a dangling pointer that can cause a use-after-free. We recommend upgrading past commit b3d26c5702c7d6c45456326e56d2ccf3f103e60f.

Publish Date: 2023-09-06

URL: CVE-2023-4623

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-2023-4623

Release Date: 2023-09-06

Fix Resolution: v4.14.327,v4.19.295,v5.4.257,v5.10.195,v5.15.132,v6.1.53,v6.4.16,v6.6-rc1


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mend-bolt-for-github[bot] commented 7 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 6 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.