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AUSCERT External Security Bulletin Redistribution
ESB-2023.3811
Security update for dnsdist
6 July 2023
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AusCERT Security Bulletin Summary
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Product: dnsdist
Publisher: SUSE
Operating System: SUSE
Resolution: Patch/Upgrade
CVE Names: CVE-2018-14663 CVE-2017-7557 CVE-2016-7069
Original Bulletin:
https://www.suse.com/support/update/announcement/2023/suse-su-20232777-1
Comment: CVSS (Max): 8.8 CVE-2017-7557 (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
CVSS Source: NVD
Calculator: https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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Security update for dnsdist
Announcement ID: SUSE-SU-2023:2777-1
Rating: moderate
o #1054799
References: o #1054802
o #1114511
o CVE-2016-7069
Cross-References: o CVE-2017-7557
o CVE-2018-14663
o CVE-2016-7069 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/
S:U/C:N/I:N/A:H
o CVE-2017-7557 ( NVD ): 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/
CVSS scores: S:U/C:H/I:H/A:H
o CVE-2018-14663 ( NVD ): 5.9 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/
S:U/C:N/I:H/A:N
o SUSE Linux Enterprise Server 15 SP1
o SUSE Linux Enterprise Server 15 SP1 LTSS 15-SP1
o SUSE Linux Enterprise Server 15 SP2
Affected o SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2
Products: o SUSE Linux Enterprise Server 15 SP3
o SUSE Linux Enterprise Server 15 SP3 LTSS 15-SP3
o SUSE Linux Enterprise Server for SAP Applications 15 SP1
o SUSE Linux Enterprise Server for SAP Applications 15 SP2
An update that solves three vulnerabilities can now be installed.
Description:
This update for dnsdist fixes the following issues:
o Implements package ‘dnsdist’ with version 1.8.0 in SLE15. (jsc#PED-3402)
o Downstream DNS resolver configuration should be chosen by the admin
o Security fix: fixes a possible record smugging with a crafted DNS query
with trailing data (CVE-2018-14663, bsc#1114511)
o Security fix: There is an issue that can lead to a denial of service on
32-bit if a backend sends crafted answers. (CVE-2016-7069, bsc#1054799)
o Security fix: Alteration of dnsdist’s ACL if the API is enabled, writable
and an authenticated user is tricked into visiting a crafted website.
(CVE-2017-7557, bsc#1054799)
o SNMP support, exporting statistics and sending traps
o Preventing the packet cache from ageing responses when deployed in
o Various DNSCrypt-related fixes and improvements, including automatic key
rotation
Patch Instructions:
To install this SUSE Moderate update use the SUSE recommended installation
methods like YaST online_update or “zypper patch”.
Alternatively you can run the command listed for your product:
o SUSE Linux Enterprise Server 15 SP1 LTSS 15-SP1
zypper in -t patch SUSE-SLE-Product-SLES-15-SP1-LTSS-2023-2777=1
o SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2
zypper in -t patch SUSE-SLE-Product-SLES-15-SP2-LTSS-2023-2777=1
o SUSE Linux Enterprise Server 15 SP3 LTSS 15-SP3
zypper in -t patch SUSE-SLE-Product-SLES-15-SP3-LTSS-2023-2777=1
o SUSE Linux Enterprise Server for SAP Applications 15 SP1
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP1-2023-2777=1
o SUSE Linux Enterprise Server for SAP Applications 15 SP2
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP2-2023-2777=1
Package List:
o SUSE Linux Enterprise Server 15 SP1 LTSS 15-SP1 (aarch64 x86_64)
dnsdist-debugsource-1.8.0-150100.3.5.1
dnsdist-1.8.0-150100.3.5.1
dnsdist-debuginfo-1.8.0-150100.3.5.1
o SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2 (aarch64 x86_64)
dnsdist-debugsource-1.8.0-150100.3.5.1
dnsdist-1.8.0-150100.3.5.1
dnsdist-debuginfo-1.8.0-150100.3.5.1
o SUSE Linux Enterprise Server 15 SP3 LTSS 15-SP3 (aarch64 x86_64)
dnsdist-debugsource-1.8.0-150100.3.5.1
dnsdist-1.8.0-150100.3.5.1
dnsdist-debuginfo-1.8.0-150100.3.5.1
o SUSE Linux Enterprise Server for SAP Applications 15 SP1 (x86_64)
dnsdist-debugsource-1.8.0-150100.3.5.1
dnsdist-1.8.0-150100.3.5.1
dnsdist-debuginfo-1.8.0-150100.3.5.1
o SUSE Linux Enterprise Server for SAP Applications 15 SP2 (x86_64)
dnsdist-debugsource-1.8.0-150100.3.5.1
dnsdist-1.8.0-150100.3.5.1
dnsdist-debuginfo-1.8.0-150100.3.5.1
References:
o https://www.suse.com/security/cve/CVE-2016-7069.html
o https://www.suse.com/security/cve/CVE-2017-7557.html
o https://www.suse.com/security/cve/CVE-2018-14663.html
o https://bugzilla.suse.com/show_bug.cgiid=1054799
o https://bugzilla.suse.com/show_bug.cgiid=1054802
o https://bugzilla.suse.com/show_bug.cgiid=1114511
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