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Test ID:1.3.6.1.4.1.25623.1.0.882781
Category:CentOS Local Security Checks
Title:CentOS Update for dnsmasq CESA-2017:2838 centos6
Summary:Check the version of dnsmasq
Description:Summary:
Check the version of dnsmasq

Vulnerability Insight:
The dnsmasq packages contain Dnsmasq,
a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configuration Protocol)
server.

Security Fix(es):

* A heap buffer overflow was found in dnsmasq in the code responsible for
building DNS replies. An attacker could send crafted DNS packets to dnsmasq
which would cause it to crash or, potentially, execute arbitrary code.
(CVE-2017-14491)

Red Hat would like to thank Felix Wilhelm (Google Security Team), Fermin J.
Serna (Google Security Team), Gabriel Campana (Google Security Team), Kevin
Hamacher (Google Security Team), and Ron Bowes (Google Security Team) for
reporting this issue.

Affected Software/OS:
dnsmasq on CentOS 6

Solution:
Please Install the Updated Packages.

CVSS Score:
7.5

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2017-14491
BugTraq ID: 101085
http://www.securityfocus.com/bid/101085
BugTraq ID: 101977
http://www.securityfocus.com/bid/101977
CERT/CC vulnerability note: VU#973527
https://www.kb.cert.org/vuls/id/973527
Debian Security Information: DSA-3989 (Google Search)
http://www.debian.org/security/2017/dsa-3989
https://www.debian.org/security/2017/dsa-3989
https://www.exploit-db.com/exploits/42941/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YXRZ2W6TV6NLUJC5NOFBSG6PZSMDTYPV/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5MMPCJOYPPL4B5RBY4U425PWG7EETDTD/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/527KNN34RN2SB6MBJG7CKSEBWYE3TJEB/
https://security.gentoo.org/glsa/201710-27
http://packetstormsecurity.com/files/144480/Dnsmasq-2-Byte-Heap-Based-Overflow.html
https://security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.html
https://www.arista.com/en/support/advisories-notices/security-advisories/3577-security-advisory-30
https://www.mail-archive.com/dnsmasq-discuss@lists.thekelleys.org.uk/msg11665.html
https://www.mail-archive.com/dnsmasq-discuss@lists.thekelleys.org.uk/msg11664.html
RedHat Security Advisories: RHSA-2017:2836
https://access.redhat.com/errata/RHSA-2017:2836
RedHat Security Advisories: RHSA-2017:2837
https://access.redhat.com/errata/RHSA-2017:2837
RedHat Security Advisories: RHSA-2017:2838
https://access.redhat.com/errata/RHSA-2017:2838
RedHat Security Advisories: RHSA-2017:2839
https://access.redhat.com/errata/RHSA-2017:2839
RedHat Security Advisories: RHSA-2017:2840
https://access.redhat.com/errata/RHSA-2017:2840
RedHat Security Advisories: RHSA-2017:2841
https://access.redhat.com/errata/RHSA-2017:2841
http://www.securitytracker.com/id/1039474
SuSE Security Announcement: SUSE-SU-2017:2616 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00003.html
SuSE Security Announcement: SUSE-SU-2017:2617 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00004.html
SuSE Security Announcement: SUSE-SU-2017:2619 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00005.html
SuSE Security Announcement: openSUSE-SU-2017:2633 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00006.html
http://www.ubuntu.com/usn/USN-3430-1
http://www.ubuntu.com/usn/USN-3430-2
http://www.ubuntu.com/usn/USN-3430-3
CopyrightCopyright (C) 2017 Greenbone AG

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