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Alerts This Week
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Gentoo: GLSA-202107-26 Low Severity: runC Privilege Escalation

gentoo
Calendar Grey July 9, 2021
Dist Gentoo Esm H88
Uncover the Gentoo GLSA 202107-26 which discusses a runC flaw that permits privilege escalation, categorized as a minor risk alert.
A vulnerability has been found in runC which could result in privilege escalation.

Summary

A vulnerability in runC could allow an attacker to achieve privilege escalation if specific mount configuration prerequisites are satisfied.

Topics%20covered

Topics Covered

security advisory gentoo privilege escalation low severity runC app-emulation container breakout

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 https://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: https://security.gentoo.org/glsa/202107-26
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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.

Severity
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Severity: Low
Title: runC: Container breakout
Date: July 10, 2021
Bugs: #790257
ID: 202107-26

Topics%20covered

Topics Covered

security advisory gentoo privilege escalation low severity runC app-emulation container breakout

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.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-emulation/runc < 1.0.0_rc95 >= 1.0.0_rc95

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.

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