[gentoo-announce] [ GLSA 202107-26 ] runC: Container breakout

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Severity: Low Title: runC: Container breakout Date: July 10, 2021 Bugs: #790257 ID: 202107-26
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Synopsis ========
A vulnerability has been found in runC which could result in privilege escalation.
Background ==========
runC is a CLI tool for spawning and running containers according to the OCI specification.
Affected packages =================
——————————————————————- Package / Vulnerable / Unaffected ——————————————————————- 1 app-emulation/runc < 1.0.0_rc95 >= 1.0.0_rc95
Description ===========
A vulnerability in runC could allow an attacker to achieve privilege escalation if specific mount configuration prerequisites are satisfied.
Impact ======
An attacker may be able to escalation privileges to gain access to the host system.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All runC users should upgrade to the latest version:
# emerge –sync # emerge –ask –oneshot –verbose “>=app-emulation/runc-1.0.0_rc95”
References ==========
[ 1 ] CVE-2021-30465 nvd.nist.gov/vuln/detail/CVE-2021-30465
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
security.gentoo.org/glsa/202107-26
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 bugs.gentoo.org.
License =======
Copyright 2021 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons – Attribution / Share Alike license.
creativecommons.org/licenses/by-sa/2.5