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Access Control Bypass Affecting github.com/seccomp/libseccomp-golang package, versions <0.9.1

0.0
medium

Snyk CVSS

    Attack Complexity High

    Threat Intelligence

    EPSS 0.26% (66th percentile)
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NVD
7.5 high
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Red Hat
6.5 medium

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  • Snyk ID SNYK-GOLANG-GITHUBCOMSECCOMPLIBSECCOMPGOLANG-174520
  • published 25 Apr 2019
  • disclosed 24 Apr 2019
  • credit An Xiao
Report a new vulnerability Found a mistake?

Introduced: 24 Apr 2019

CVE-2017-18367 Open this link in a new tab
CWE-284 Open this link in a new tab

How to fix?

Upgrade github.com/seccomp/libseccomp-golang to version 0.9.1 or higher.

Overview

Affected versions of this package are vulnerable to Access Control Bypass. Earlier versions of libseccomp-golang incorrectly generates BPFs using OR boolean logic instead of AND. Due to this flaw, a process running under a restrictive seccomp filter that specified multiple syscall arguments could bypass intended access restrictions by specifying a single matching argument. Multiple syscall argument rules should be matched with AND logic.