- Update to bind release 9.18.7
Security Fixes:
* Previously, there was no limit to the number of database lookups
performed while processing large delegations, which could be
abused to severely impact the performance of named running as a
recursive resolver. This has been fixed. (CVE-2022-2795)
* When an HTTP connection was reused to request statistics from the
stats channel, the content length of successive responses could
grow in size past the end of the allocated buffer.
This has been fixed. (CVE-2022-2881)
* Memory leaks in code handling Diffie-Hellman (DH) keys were fixed
that could be externally triggered, when using TKEY records in DH
mode with OpenSSL 3.0.0 and later versions. (CVE-2022-2906)
* named running as a resolver with the stale-answer-client-timeout
option set to 0 could crash with an assertion failure, when there
was a stale CNAME in the cache for the incoming query.
This has been fixed. (CVE-2022-3080)
* Memory leaks were fixed that could be externally triggered in the
DNSSEC verification code for the EdDSA algorithm. (CVE-2022-38178)
Feature Changes:
* Response Rate Limiting (RRL) code now treats all QNAMEs that are
subject to wildcard processing within a given zone as the same
name, to prevent circumventing the limits enforced by RRL.
* Zones using dnssec-policy now require dynamic DNS or
inline-signing to be configured explicitly.
* When reconfiguring dnssec-policy from using NSEC with an NSEC-only
DNSKEY algorithm (e.g. RSASHA1) to a policy that uses NSEC3,
BIND 9 no longer fails to sign the zone; instead, it keeps using
NSEC until the offending DNSKEY records have been removed from the
zone, then switches to using NSEC3.
* A backward-compatible approach was implemented for encoding
internationalized domain names (IDN) in dig and converting the
domain to IDNA2008 form; if that fails, BIND tries an IDNA2003
conversion.
Bug Fixes:
* A serve-stale bug was fixed, where BIND would try to return stale
data from cache for lookups that received duplicate queries or
queries that would be dropped. This bug resulted in premature
SERVFAIL responses, and has now been resolved.
This obsoletes the following patch:
* bind-fix-mysql-bindings.patch
[bsc#1203614, bsc#1203615, bsc#1203616, bsc#1203618, bsc#1203620]
OBS-URL: https://build.opensuse.org/request/show/1005206
OBS-URL: https://build.opensuse.org/package/show/network/bind?expand=0&rev=357
Jorik Cronenberg
7a18d2cf86