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CVE-2022-3586

Good to know:

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Date: October 18, 2022

A flaw was found in the Linux kernel’s networking code. A use-after-free was found in the way the sch_sfb enqueue function used the socket buffer (SKB) cb field after the same SKB had been enqueued (and freed) into a child qdisc. This flaw allows a local, unprivileged user to crash the system, causing a denial of service.

Language: C

Severity Score

Related Resources (8)

https://people.canonical.com/~ubuntu-security/cve/CVE-2022-3586
https://security-tracker.debian.org/tracker/CVE-2022-3586
https://nvd.nist.gov/vuln/detail/CVE-2022-3586
https://access.redhat.com/security/cve/CVE-2022-3586
https://www.zerodayinitiative.com/advisories/upcoming/
https://github.com/torvalds/linux/commit/9efd23297cca
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
https://www.mend.io/vulnerability-database/CVE-2022-3586

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

Top Fix

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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): NONE
Integrity (I): NONE
Availability (A): HIGH

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