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authorHauke Mehrtens <hauke@hauke-m.de>2021-01-11 00:33:07 +0100
committerHauke Mehrtens <hauke@hauke-m.de>2021-01-19 13:01:03 +0100
commite87c0d934c54d0b07caef1db3af170510acf3cfa (patch)
tree47fe64f5286822b0f1e92746901c6f38d70587e2
parent20a7c9d5c9d87595aa73ad39e95132df545a60ca (diff)
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dnsmasq: Update to version 2.83
This fixes the following security problems in dnsmasq: * CVE-2020-25681: Dnsmasq versions before 2.83 is susceptible to a heap-based buffer overflow in sort_rrset() when DNSSEC is used. This can allow a remote attacker to write arbitrary data into target device's memory that can lead to memory corruption and other unexpected behaviors on the target device. * CVE-2020-25682: Dnsmasq versions before 2.83 is susceptible to buffer overflow in extract_name() function due to missing length check, when DNSSEC is enabled. This can allow a remote attacker to cause memory corruption on the target device. * CVE-2020-25683: Dnsmasq version before 2.83 is susceptible to a heap-based buffer overflow when DNSSEC is enabled. A remote attacker, who can create valid DNS replies, could use this flaw to cause an overflow in a heap- allocated memory. This flaw is caused by the lack of length checks in rtc1035.c:extract_name(), which could be abused to make the code execute memcpy() with a negative size in get_rdata() and cause a crash in Dnsmasq, resulting in a Denial of Service. * CVE-2020-25684: A lack of proper address/port check implemented in Dnsmasq version < 2.83 reply_query function makes forging replies easier to an off-path attacker. * CVE-2020-25685: A lack of query resource name (RRNAME) checks implemented in Dnsmasq's versions before 2.83 reply_query function allows remote attackers to spoof DNS traffic that can lead to DNS cache poisoning. * CVE-2020-25686: Multiple DNS query requests for the same resource name (RRNAME) by Dnsmasq versions before 2.83 allows for remote attackers to spoof DNS traffic, using a birthday attack (RFC 5452), that can lead to DNS cache poisoning. * CVE-2020-25687: Dnsmasq versions before 2.83 is vulnerable to a heap-based buffer overflow with large memcpy in sort_rrset() when DNSSEC is enabled. A remote attacker, who can create valid DNS replies, could use this flaw to cause an overflow in a heap-allocated memory. This flaw is caused by the lack of length checks in rtc1035.c:extract_name(), which could be abused to make the code execute memcpy() with a negative size in sort_rrset() and cause a crash in dnsmasq, resulting in a Denial of Service. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
-rw-r--r--package/network/services/dnsmasq/Makefile6
-rw-r--r--package/network/services/dnsmasq/patches/100-remove-old-runtime-kernel-support.patch4
2 files changed, 5 insertions, 5 deletions
diff --git a/package/network/services/dnsmasq/Makefile b/package/network/services/dnsmasq/Makefile
index ba10ded333..7b5af1dd27 100644
--- a/package/network/services/dnsmasq/Makefile
+++ b/package/network/services/dnsmasq/Makefile
@@ -8,13 +8,13 @@
include $(TOPDIR)/rules.mk
PKG_NAME:=dnsmasq
-PKG_UPSTREAM_VERSION:=2.82
+PKG_UPSTREAM_VERSION:=2.83
PKG_VERSION:=$(subst test,~~test,$(subst rc,~rc,$(PKG_UPSTREAM_VERSION)))
-PKG_RELEASE:=10
+PKG_RELEASE:=1
PKG_SOURCE:=$(PKG_NAME)-$(PKG_UPSTREAM_VERSION).tar.xz
PKG_SOURCE_URL:=http://thekelleys.org.uk/dnsmasq
-PKG_HASH:=84523646f3116bb5e1151efb66e645030f6e6a8256f29aab444777a343ebc132
+PKG_HASH:=ffc1f7e8b05e22d910b9a71d09f1128197292766dc7c54cb7018a1b2c3af4aea
PKG_LICENSE:=GPL-2.0
PKG_LICENSE_FILES:=COPYING
diff --git a/package/network/services/dnsmasq/patches/100-remove-old-runtime-kernel-support.patch b/package/network/services/dnsmasq/patches/100-remove-old-runtime-kernel-support.patch
index aaa5a76909..bd11806ae0 100644
--- a/package/network/services/dnsmasq/patches/100-remove-old-runtime-kernel-support.patch
+++ b/package/network/services/dnsmasq/patches/100-remove-old-runtime-kernel-support.patch
@@ -27,7 +27,7 @@ Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
--- a/src/dnsmasq.h
+++ b/src/dnsmasq.h
-@@ -1112,7 +1112,7 @@ extern struct daemon {
+@@ -1125,7 +1125,7 @@ extern struct daemon {
int inotifyfd;
#endif
#if defined(HAVE_LINUX_NETWORK)
@@ -36,7 +36,7 @@ Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
#elif defined(HAVE_BSD_NETWORK)
int dhcp_raw_fd, dhcp_icmp_fd, routefd;
#endif
-@@ -1292,9 +1292,6 @@ int read_write(int fd, unsigned char *pa
+@@ -1306,9 +1306,6 @@ int read_write(int fd, unsigned char *pa
void close_fds(long max_fd, int spare1, int spare2, int spare3);
int wildcard_match(const char* wildcard, const char* match);
int wildcard_matchn(const char* wildcard, const char* match, int num);