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Gentoo: GLSA-202109-04 Normal: libcgroup Privilege Escalation

gentoo
Calendar Grey August 8, 2020
Dist Gentoo Esm H88
Gentoo GLSA-202110-15 addresses a buffer overflow in net-tools that may result in system instability. It is advisable to perform an upgrade.
A use-after-free was found in iproute2, possibly allowing a Denial of Service condition.

Summary

iproute2 was found to contain a use-after-free in get_netnsid_from_name in ip/ipnetns.c.

Topics%20covered

Topics Covered

security advisory Gentoo Denial Of Service normal severity iproute2 use-after-free

Resolution

All iproute2 users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=sys-apps/iproute2-5.1.0"

References

[ 1 ] CVE-2019-20795 https://nvd.nist.gov/vuln/detail/CVE-2019-20795

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202008-06
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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: Normal
Title: iproute2: Denial of service
Date: August 08, 2020
Bugs: #722144
ID: 202008-06

Topics%20covered

Topics Covered

security advisory Gentoo Denial Of Service normal severity iproute2 use-after-free

Synopsis

A use-after-free was found in iproute2, possibly allowing a Denial of Service condition.

Background

iproute2 is a set of tools for managing Linux network routing and advanced features.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-apps/iproute2 < 5.1.0 >= 5.1.0

Impact

===== A remote attacker, able to feed iproute2 crafted data, may be able to cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

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