[SECURITY] [DLA 2003-1] isc-dhcp security update

2019-11-2418:13:27

lists.debian.org

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.1 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.922 High

EPSS

Percentile

98.9%

JSON

Package : isc-dhcp
Version : 4.3.1-6+deb8u4
CVE ID : CVE-2016-2774

An issue has been found in isc-dhcp, a server for automatic IP address
assignment.

The number of simultaneous open TCP connections to OMAPI port of the
server has to be limited to 200 in order to avoid a denial of service.

For Debian 8 "Jessie", this problem has been fixed in version
4.3.1-6+deb8u4.

We recommend that you upgrade your isc-dhcp packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

OSVersionArchitecturePackageVersionFilename
Debian8amd64isc-dhcp-server-dbg< 4.3.1-6+deb8u4isc-dhcp-server-dbg_4.3.1-6+deb8u4_amd64.deb
Debian8i386isc-dhcp-server-ldap< 4.3.1-6+deb8u4isc-dhcp-server-ldap_4.3.1-6+deb8u4_i386.deb
Debian8amd64isc-dhcp-dev< 4.3.1-6+deb8u4isc-dhcp-dev_4.3.1-6+deb8u4_amd64.deb
Debian8armhfisc-dhcp-relay< 4.3.1-6+deb8u4isc-dhcp-relay_4.3.1-6+deb8u4_armhf.deb
Debian8armhfisc-dhcp-server< 4.3.1-6+deb8u4isc-dhcp-server_4.3.1-6+deb8u4_armhf.deb
Debian8armelisc-dhcp-dbg< 4.3.1-6+deb8u4isc-dhcp-dbg_4.3.1-6+deb8u4_armel.deb
Debian8amd64isc-dhcp-relay< 4.3.1-6+deb8u4isc-dhcp-relay_4.3.1-6+deb8u4_amd64.deb
Debian8i386isc-dhcp-client< 4.3.1-6+deb8u4isc-dhcp-client_4.3.1-6+deb8u4_i386.deb
Debian8i386isc-dhcp-relay< 4.3.1-6+deb8u4isc-dhcp-relay_4.3.1-6+deb8u4_i386.deb
Debian8amd64isc-dhcp-dbg< 4.3.1-6+deb8u4isc-dhcp-dbg_4.3.1-6+deb8u4_amd64.deb

OS	Version	Architecture	Package	Version	Filename
Debian	8	amd64	isc-dhcp-server-dbg	< 4.3.1-6+deb8u4	isc-dhcp-server-dbg_4.3.1-6+deb8u4_amd64.deb
Debian	8	i386	isc-dhcp-server-ldap	< 4.3.1-6+deb8u4	isc-dhcp-server-ldap_4.3.1-6+deb8u4_i386.deb
Debian	8	amd64	isc-dhcp-dev	< 4.3.1-6+deb8u4	isc-dhcp-dev_4.3.1-6+deb8u4_amd64.deb
Debian	8	armhf	isc-dhcp-relay	< 4.3.1-6+deb8u4	isc-dhcp-relay_4.3.1-6+deb8u4_armhf.deb
Debian	8	armhf	isc-dhcp-server	< 4.3.1-6+deb8u4	isc-dhcp-server_4.3.1-6+deb8u4_armhf.deb
Debian	8	armel	isc-dhcp-dbg	< 4.3.1-6+deb8u4	isc-dhcp-dbg_4.3.1-6+deb8u4_armel.deb
Debian	8	amd64	isc-dhcp-relay	< 4.3.1-6+deb8u4	isc-dhcp-relay_4.3.1-6+deb8u4_amd64.deb
Debian	8	i386	isc-dhcp-client	< 4.3.1-6+deb8u4	isc-dhcp-client_4.3.1-6+deb8u4_i386.deb
Debian	8	i386	isc-dhcp-relay	< 4.3.1-6+deb8u4	isc-dhcp-relay_4.3.1-6+deb8u4_i386.deb
Debian	8	amd64	isc-dhcp-dbg	< 4.3.1-6+deb8u4	isc-dhcp-dbg_4.3.1-6+deb8u4_amd64.deb