SUSE-SU-2023:2777-1: moderate: Security update for dnsdist

[sle-security-updates at lists.suse.com]

# Security update for dnsdist

Announcement ID: SUSE-SU-2023:2777-1  
Rating: moderate  
References:

  * #1054799
  * #1054802
  * #1114511

  
Cross-References:

  * CVE-2016-7069
  * CVE-2017-7557
  * CVE-2018-14663

  
CVSS scores:

  * 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
  * CVE-2017-7557 ( NVD ):  8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  * 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

  
Affected Products:

  * SUSE Linux Enterprise Server 15 SP1
  * SUSE Linux Enterprise Server 15 SP1 LTSS 15-SP1
  * SUSE Linux Enterprise Server 15 SP2
  * SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2
  * SUSE Linux Enterprise Server 15 SP3
  * SUSE Linux Enterprise Server 15 SP3 LTSS 15-SP3
  * SUSE Linux Enterprise Server for SAP Applications 15 SP1
  * 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:

  * Implements package 'dnsdist' with version 1.8.0 in SLE15. (jsc#PED-3402)
  * Downstream DNS resolver configuration should be chosen by the admin
  * Security fix: fixes a possible record smugging with a crafted DNS query with
    trailing data (CVE-2018-14663, bsc#1114511)
  * 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)
  * 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)
  * SNMP support, exporting statistics and sending traps
  * Preventing the packet cache from ageing responses when deployed in
  * 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:

  * SUSE Linux Enterprise Server 15 SP1 LTSS 15-SP1  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP1-LTSS-2023-2777=1

  * SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP2-LTSS-2023-2777=1

  * SUSE Linux Enterprise Server 15 SP3 LTSS 15-SP3  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP3-LTSS-2023-2777=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP1  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP1-2023-2777=1

  * 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:

  * 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
  * 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
  * 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
  * 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
  * 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:

  * https://www.suse.com/security/cve/CVE-2016-7069.html
  * https://www.suse.com/security/cve/CVE-2017-7557.html
  * https://www.suse.com/security/cve/CVE-2018-14663.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1054799
  * https://bugzilla.suse.com/show_bug.cgi?id=1054802
  * https://bugzilla.suse.com/show_bug.cgi?id=1114511

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