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Alerts This Week
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Gentoo: GLSA-201701-05 Normal: BusyBox Denial of Service Application

gentoo
Calendar Grey January 1, 2017
Dist Gentoo Esm H88
A critical vulnerability in BusyBox might lead to Denial of Service through specially designed packets. Quick patching advised.
A vulnerability in BusyBox might allow remote attackers to cause a Denial of Service condition.

Summary

The recv_and_process_client_pkt function in networking/ntpd.c in BusyBox allows remote attackers to cause a Denial of Service (CPU and bandwidth consumption) via a forged NTP packet, which triggers a communication loop.

Topics%20covered

Topics Covered

security advisory denial of service gentoo normal severity network issue busybox

Resolution

All BusyBox users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=sys-apps/busybox-1.25.1"

References

[ 1 ] CVE-2016-6301 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-6301

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/201701-05
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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: BusyBox: Denial of Service
Date: January 01, 2017
Bugs: #590478
ID: 201701-05

Topics%20covered

Topics Covered

security advisory denial of service gentoo normal severity network issue busybox

Synopsis

A vulnerability in BusyBox might allow remote attackers to cause a Denial of Service condition.

Background

BusyBox is a set of tools for embedded systems and is a replacement for GNU Coreutils.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-apps/busybox < 1.25.1 >= 1.25.1

Impact

===== A remote attacker might send a specially crafted package to a machine running BusyBox ntpd, possibly resulting in a Denial of Service condition.

Workaround

There is no known workaround at this time.

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