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gentooGentoo FoundationGLSA-201512-01
HistoryDec 17, 2015 - 12:00 a.m.

Dnsmasq: Denial of service

2015-12-1700:00:00
Gentoo Foundation
security.gentoo.org
14

6.4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:N/A:P

0.017 Low

EPSS

Percentile

87.9%

Background

Dnsmasq is a lightweight, easy to configure DNS forwarder and DHCP server.

Description

An out-of-bounds read vulnerability has been found in the tcp_request function in Dnsmasq.

Impact

A remote attacker could send a specially crafted DNS request, possibly resulting in a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All Dnsmasq users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=net-dns/dnsmasq-2.72-r2"
OSVersionArchitecturePackageVersionFilename
Gentooanyallnet-dns/dnsmasq< 2.72-r2UNKNOWN

6.4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:N/A:P

0.017 Low

EPSS

Percentile

87.9%