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gentooGentoo FoundationGLSA-201710-27
HistoryOct 23, 2017 - 12:00 a.m.

Dnsmasq: Multiple vulnerabilities

2017-10-2300:00:00
Gentoo Foundation
security.gentoo.org
54

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.8 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.923 High

EPSS

Percentile

98.9%

JSON

Background

Dnsmasq is a lightweight and easily-configurable DNS forwarder and DHCP server.

Description

Multiple vulnerabilities have been discovered in Dnsmasq. Please review the references below for details.

Impact

A remote attacker could execute arbitrary code or cause a Denial of Service condition via crafted DNS, IPv6, or DHCPv6 packets.

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-2.78"
OSVersionArchitecturePackageVersionFilename
Gentooanyallnet-dns/dnsmasq< 2.78UNKNOWN

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9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.8 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.923 High

EPSS

Percentile

98.9%

JSON
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