Gentoo: GLSA-202102-12 Normal: OpenSSL Certificate Validation Flaw
gentoo
September 8, 2019
An authentication bypass was discovered in D-Bus.
Summary
It was discovered that a local attacker could manipulate symbolic links in their own home directory to bypass authentication and connect to a DBusServer with elevated privileges.
Resolution
All D-Bus users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/dbus-1.12.16"
References
[ 1 ] CVE-2019-12749 https://nvd.nist.gov/vuln/detail/CVE-2019-12749
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201909-08
style>.gentoo_availability{display:block;}
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: D-Bus: Authentication bypass
Date: September 08, 2019
Bugs: #687900
ID: 201909-08
Background
D-Bus is a message bus system which processes can use to talk to each
other.
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Affected Packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 sys-apps/dbus < 1.12.16 >= 1.12.16
Impact
=====
A local attacker can bypass authentication mechanisms and elevate
privileges.
Workaround
There is no known workaround at this time.
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