Gentoo: GLSA-201805-09 Moderate: Risk of Shadow Bypass Vulnerability
gentoo
May 22, 2018
A vulnerability found in Shadow may allow local attackers to bypass security restrictions.
Summary
A local attacker could possibly bypass security restrictions if an administrator used "group blacklisting" to restrict access to file system paths.
Topics Covered
Resolution
All shadow users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/shadow-4.6"
References
[ 1 ] CVE-2018-7169 https://nvd.nist.gov/vuln/detail/CVE-2018-7169
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201805-09
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Concerns
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
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Severity: Normal
Title: Shadow: security bypass
Date: May 22, 2018
Bugs: #647790
ID: 201805-09
Topics Covered
Background
Shadow is a set of tools to deal with user accounts.
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Affected Packages
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Package / Vulnerable / Unaffected
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1 sys-apps/shadow < 4.6 >= 4.6
Impact
=====
A local attacker could possibly bypass security restrictions.
Workaround
There is no known workaround at this time.
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