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| author | Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk> | 2018-01-19 17:16:08 +0000 |
|---|---|---|
| committer | Hans Dedecker <dedeckeh@gmail.com> | 2018-01-19 22:11:16 +0100 |
| commit | a3198061f80a7f3933810cd99206b085e4cf49f9 (patch) | |
| tree | 08af0a10a298d17b794315b66af914e080c73c04 /package/network/services/dnsmasq/Makefile | |
| parent | 9c2ac19b032c81a454f1efbcf5681b80cad2fa39 (diff) | |
| download | upstream-a3198061f80a7f3933810cd99206b085e4cf49f9.tar.gz upstream-a3198061f80a7f3933810cd99206b085e4cf49f9.tar.bz2 upstream-a3198061f80a7f3933810cd99206b085e4cf49f9.zip | |
dnsmasq: backport dnssec security fix
CVE-2017-15107
An interesting problem has turned up in DNSSEC validation. It turns out
that NSEC records expanded from wildcards are allowed, so a domain can
include an NSEC record for *.example.org and an actual query reply could
expand that to anything in example.org and still have it signed by the
signature for the wildcard. So, for example
!.example.org NSEC zz.example.org
is fine.
The problem is that most implementers (your author included, but also
the Google public DNS people, powerdns and Unbound) then took that
record to prove the nothing exists between !.example.org and
zz.example.org, whereas in fact it only provides that proof between
*.example.org and zz.example.org.
This gives an attacker a way to prove that anything between
!.example.org and *.example.org doesn't exists, when it may well do so.
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Diffstat (limited to 'package/network/services/dnsmasq/Makefile')
| -rw-r--r-- | package/network/services/dnsmasq/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/package/network/services/dnsmasq/Makefile b/package/network/services/dnsmasq/Makefile index 1224ad86f8..3ef7a317d4 100644 --- a/package/network/services/dnsmasq/Makefile +++ b/package/network/services/dnsmasq/Makefile @@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk PKG_NAME:=dnsmasq PKG_VERSION:=2.78 -PKG_RELEASE:=8 +PKG_RELEASE:=9 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz PKG_SOURCE_URL:=http://thekelleys.org.uk/dnsmasq/ |