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Use After Free Affecting torvalds/linux package, versions [0,]

0.0
critical

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.04% (6th percentile)
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NVD
6.7 medium
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SUSE
6.6 medium
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Red Hat
6.6 medium

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  • Snyk ID SNYK-UNMANAGED-TORVALDSLINUX-5660405
  • published 29 May 2023
  • disclosed 29 May 2023
  • credit Unknown
Report a new vulnerability Found a mistake?

Introduced: 29 May 2023

CVE-2020-36694 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Use After Free in the packet processing context, because the per-CPU sequence count is mishandled during concurrent iptables rules replacement. This could be exploited with the CAP_NET_ADMIN capability in an unprivileged namespace.

References