Security update.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Edwin Torok discovered that Dnsmasq incorrectly handled certain CNAME responses. A remote attacker could use this issue to cause Dnsmasq to crash, resulting in a denial of service.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for dnsmasq fixes the following issues :

  - CVE-2015-8899: Denial of service between local and     remote dns entries (bsc#983273)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

reports :

Dnsmasq before 2.76 allows remote servers to cause a denial of service (crash) via a reply with an empty DNS address that has an (1) A or (2) AAAA record defined locally.

This update for dnsmasq fixes the following issues :

  - CVE-2015-8899: Denial of service between local and     remote dns entries (bsc#983273)

This update was imported from the SUSE:SLE-12-SP1:Update update project.

The version of dnsmasq installed on the remote host is at least 2.73 and prior to 2.76, and thus, is affected by a denial of service vulnerability when handling a reply that a given name is empty while the A or AAAA record is defined locally and in a hosts file.

This update for dnsmasq fixes the following issues. Remedy the following security issues :

  - CVE-2017-14491: 2 byte heap based overflow.
    [bsc#1060354]

  - CVE-2017-14492: heap based overflow. [bsc#1060355]

  - CVE-2017-14493: stack based overflow. [bsc#1060360]

  - CVE-2017-14494: DHCP - info leak. [bsc#1060361]

  - CVE-2017-14495: DNS - OOM DoS. [bsc#1060362]

  - CVE-2017-14496: DNS - DoS Integer underflow.
    [bsc#1060364]

  - Prevent a man-in-the-middle attack (bsc#972164,     fate#321175). Furthermore, the following issues have     been fixed :

  - Fix DHCP relaying, broken in 2.76 and 2.77.

  - Update to version 2.78 (fate#321175, fate#322030,     bsc#1035227).

  - Fix PXE booting for UEFI architectures (fate#322030).

  - Drop PrivateDevices=yes which breaks logging     (bsc#902511, bsc#904537)

  - Build with support for DNSSEC (fate#318323, bsc#908137).
    Please note that this update brings a (small) potential     incompatibility in the handling of 'basename' in
    --pxe-service. Please read the CHANGELOG and the     documentation if you are using this option.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

An update of the dnsmasq package has been released.

Enhancement update.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for dnsmasq fixes the following security issues :

  - CVE-2017-14491: 2 byte heap based overflow.
    [bsc#1060354]

  - CVE-2017-14492: heap based overflow. [bsc#1060355]

  - CVE-2017-14493: stack based overflow. [bsc#1060360]

  - CVE-2017-14494: DHCP - info leak. [bsc#1060361]

  - CVE-2017-14495: DNS - OOM DoS. [bsc#1060362]

  - CVE-2017-14496: DNS - DoS Integer underflow.
    [bsc#1060364] This update brings a (small) potential     incompatibility in the handling of 'basename' in
    --pxe-service. Please read the CHANGELOG and the     documentation if you are using this option.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Published	Updated	Severity
92393	Fedora 24 : dnsmasq (2016-da2f9c22b4)	Nessus	Fedora Local Security Checks	7/19/2016	1/11/2021	high
91725	Ubuntu 16.04 LTS : Dnsmasq vulnerability (USN-3009-1)	Nessus	Ubuntu Local Security Checks	6/21/2016	10/23/2023	high
95990	SUSE SLES11 Security Update : dnsmasq (SUSE-SU-2016:3199-1)	Nessus	SuSE Local Security Checks	12/21/2016	1/19/2021	high
91910	FreeBSD : dnsmasq -- denial of service (875e4cf8-3f0e-11e6-b3c8-14dae9d210b8)	Nessus	FreeBSD Local Security Checks	7/1/2016	1/4/2021	high
96277	openSUSE Security Update : dnsmasq (openSUSE-2017-10)	Nessus	SuSE Local Security Checks	1/4/2017	1/19/2021	high
106138	dnsmasq < 2.76 Empty Address Denial of Service (CVE-2015-8899)	Nessus	DNS	1/18/2018	11/8/2019	high
96141	SUSE SLED12 / SLES12 Security Update : dnsmasq (SUSE-SU-2016:3269-1)	Nessus	SuSE Local Security Checks	12/27/2016	1/6/2021	high
103637	SUSE SLES12 Security Update : dnsmasq (SUSE-SU-2017:2616-1)	Nessus	SuSE Local Security Checks	10/3/2017	1/6/2021	critical
121647	Photon OS 1.0: Dnsmasq PHSA-2016-0012	Nessus	PhotonOS Local Security Checks	2/7/2019	5/24/2022	high
92802	Fedora 23 : dnsmasq (2016-6db1c9eb69)	Nessus	Fedora Local Security Checks	8/9/2016	1/11/2021	high
103638	SUSE SLES11 Security Update : dnsmasq (SUSE-SU-2017:2617-1)	Nessus	SuSE Local Security Checks	10/3/2017	1/19/2021	critical
103640	SUSE SLES11 Security Update : dnsmasq (SUSE-SU-2017:2619-1)	Nessus	SuSE Local Security Checks	10/3/2017	1/19/2021	critical

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