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AUSCERT External Security Bulletin Redistribution
ESB-2021.1873
Security update for bind
2 June 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: bind
Publisher: SUSE
Operating System: SUSE
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-25215 CVE-2021-25214
Reference: ESB-2021.1513
ESB-2021.1504
Original Bulletin:
https://www.suse.com/support/update/announcement/2021/suse-su-20211826-1
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SUSE Security Update: Security update for bind
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:1826-1
Rating: important
References: #1183453 #1185073
Cross-References: CVE-2021-25214 CVE-2021-25215
Affected Products:
SUSE Linux Enterprise Module for Server Applications 15-SP3
SUSE Linux Enterprise Module for Basesystem 15-SP3
______________________________________________________________________________
An update that fixes two vulnerabilities is now available.
Description:
This update for bind fixes the following issues:
o CVE-2021-25214: Fixed a broken inbound incremental zone update (IXFR) which
could have caused named to terminate unexpectedly (bsc#1185345).
o CVE-2021-25215: Fixed an assertion check which could have failed while
answering queries for DNAME records that required the DNAME to be processed
to resolve itself (bsc#1185345).
o Switched from /var/run to /run (bsc#1185073)
o Hardening: Compiled binary with PIE flags to make it position independent
Patch Instructions:
To install this SUSE Security 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 Module for Server Applications 15-SP3:
zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP3-2021-1826=1
o SUSE Linux Enterprise Module for Basesystem 15-SP3:
zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP3-2021-1826=1
Package List:
o SUSE Linux Enterprise Module for Server Applications 15-SP3 (aarch64
ppc64le s390x x86_64):
bind-9.16.6-22.7.1
bind-chrootenv-9.16.6-22.7.1
bind-debuginfo-9.16.6-22.7.1
bind-debugsource-9.16.6-22.7.1
o SUSE Linux Enterprise Module for Server Applications 15-SP3 (noarch):
bind-doc-9.16.6-22.7.1
o SUSE Linux Enterprise Module for Basesystem 15-SP3 (aarch64 ppc64le s390x
x86_64):
bind-debuginfo-9.16.6-22.7.1
bind-debugsource-9.16.6-22.7.1
bind-devel-9.16.6-22.7.1
bind-utils-9.16.6-22.7.1
bind-utils-debuginfo-9.16.6-22.7.1
libbind9-1600-9.16.6-22.7.1
libbind9-1600-debuginfo-9.16.6-22.7.1
libdns1605-9.16.6-22.7.1
libdns1605-debuginfo-9.16.6-22.7.1
libirs-devel-9.16.6-22.7.1
libirs1601-9.16.6-22.7.1
libirs1601-debuginfo-9.16.6-22.7.1
libisc1606-9.16.6-22.7.1
libisc1606-debuginfo-9.16.6-22.7.1
libisccc1600-9.16.6-22.7.1
libisccc1600-debuginfo-9.16.6-22.7.1
libisccfg1600-9.16.6-22.7.1
libisccfg1600-debuginfo-9.16.6-22.7.1
libns1604-9.16.6-22.7.1
libns1604-debuginfo-9.16.6-22.7.1
o SUSE Linux Enterprise Module for Basesystem 15-SP3 (noarch):
python3-bind-9.16.6-22.7.1
References:
o https://www.suse.com/security/cve/CVE-2021-25214.html
o https://www.suse.com/security/cve/CVE-2021-25215.html
o https://bugzilla.suse.com/1183453
o https://bugzilla.suse.com/1185073
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