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praneethpanasala / linux

Linux kernel variant from Analog Devices; see README.md for details
https://github.com/analogdevicesinc/linux
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CVE-2023-4208 (High) detected in linuxv4.19 #664

Open mend-bolt-for-github[bot] opened 11 months ago

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

CVE-2023-4208 - High Severity Vulnerability

Vulnerable Library - linuxv4.19

Linux kernel source tree

Library home page: https://github.com/torvalds/linux.git

Found in base branch: master

Vulnerable Source Files (2)

/net/sched/cls_u32.c /net/sched/cls_u32.c

Vulnerability Details

A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local privilege escalation. When u32_change() is called on an existing filter, the whole tcf_result struct is always copied into the new instance of the filter. This causes a problem when updating a filter bound to a class, as tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the still referenced class and allowing it to be deleted, leading to a use-after-free. We recommend upgrading past commit 3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81.

Publish Date: 2023-09-06

URL: CVE-2023-4208

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-2023-4208

Release Date: 2023-09-06

Fix Resolution: v4.14.322,v4.19.291,v5.4.253,v5.10.190,v5.15.126,v6.1.45,v6.4.10,v6.5-rc5

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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

: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.