From cd8fa738b0ed3b5fb89ac00068fdc2e20c1b6169 Mon Sep 17 00:00:00 2001 From: Gyorgy Sarvari Date: Mon, 2 Feb 2026 14:03:01 +0100 Subject: [PATCH] CVE-2003-0887 The vulnerability is about exmaple config files placing cache files into a world-writable directory (/tmp) instead of something more secure. This patch changes this path to /var/lib/ez-ipupdate, which is not world-writable by default. CVE: CVE-2003-0887 Upstream-Status: Inactive-Upstream [lastcommit: 2002] Signed-off-by: Gyorgy Sarvari --- example-dhs.conf | 2 +- example-dyndns.conf | 2 +- example-dyns.conf | 2 +- example-easydns.conf | 2 +- example-gnudip.conf | 2 +- example-heipv6tb.conf | 2 +- example-justlinux.conf | 2 +- example-ods.conf | 2 +- example-pgpow.conf | 2 +- example-tzo.conf | 2 +- 10 files changed, 10 insertions(+), 10 deletions(-) --- a/example-dhs.conf +++ b/example-dhs.conf @@ -11,7 +11,7 @@ host=mydomain.whatever.com interface=eth1 # if you use run-as ensure the user has permission to write this file -cache-file=/tmp/ez-ipupdate.cache +cache-file=/var/lib/ez-ipupdate/ez-ipupdate.cache # uncomment this once you have everything working how you want and you are # ready to have ez-ipupdate running in the background all the time. to stop it --- a/example-dyndns.conf +++ b/example-dyndns.conf @@ -19,7 +19,7 @@ max-interval=2073600 #cache-file=/etc/ez-ipupdate.cache.eth1 # for the mean time we'll just use a cache file in the temp directory -cache-file=/tmp/ez-ipupdate.cache +cache-file=/var/lib/ez-ipupdate/ez-ipupdate.cache # uncomment this once you have everything working how you want and you are # ready to have ez-ipupdate running in the background all the time. to stop it --- a/example-dyns.conf +++ b/example-dyns.conf @@ -11,7 +11,7 @@ host=myhost #interface=eth1 # if you use run-as ensure the user has permission to write this file -#cache-file=/tmp/ez-ipupdate.cache +#cache-file=/var/lib/ez-ipupdate/ez-ipupdate.cache # uncomment this once you have everything working how you want and you are # ready to have ez-ipupdate running in the background all the time. to stop it --- a/example-easydns.conf +++ b/example-easydns.conf @@ -11,7 +11,7 @@ host=mydomain.whatever.com interface=eth1 # if you use run-as ensure the user has permission to write this file -cache-file=/tmp/ez-ipupdate.cache +cache-file=/var/lib/ez-ipupdate/ez-ipupdate.cache # uncomment this once you have everything working how you want and you are # ready to have ez-ipupdate running in the background all the time. to stop it --- a/example-gnudip.conf +++ b/example-gnudip.conf @@ -15,7 +15,7 @@ max-interval=2073600 #address=0.0.0.0 # if you use run-as ensure the user has permission to write this file -cache-file=/tmp/ez-ipupdate.cache +cache-file=/var/lib/ez-ipupdate/ez-ipupdate.cache # uncomment this once you have everything working how you want and you are # ready to have ez-ipupdate running in the background all the time. to stop it --- a/example-heipv6tb.conf +++ b/example-heipv6tb.conf @@ -18,7 +18,7 @@ max-interval=2073600 #cache-file=/etc/ez-ipupdate.cache.eth1 # for the mean time we'll just use a cache file in the temp directory -cache-file=/tmp/ez-ipupdate.cache +cache-file=/var/lib/ez-ipupdate/ez-ipupdate.cache # uncomment this once you have everything working how you want and you are # ready to have ez-ipupdate running in the background all the time. to stop it --- a/example-justlinux.conf +++ b/example-justlinux.conf @@ -11,7 +11,7 @@ host=mydomain.penguinpowered.com interface=eth1 # if you use run-as ensure the user has permission to write this file -cache-file=/tmp/ez-ipupdate.cache +cache-file=/var/lib/ez-ipupdate/ez-ipupdate.cache # uncomment this once you have everything working how you want and you are # ready to have ez-ipupdate running in the background all the time. to stop it --- a/example-ods.conf +++ b/example-ods.conf @@ -11,7 +11,7 @@ host=mydomain.ods.org interface=eth1 # if you use run-as ensure the user has permission to write this file -cache-file=/tmp/ez-ipupdate.cache +cache-file=/var/lib/ez-ipupdate/ez-ipupdate.cache # uncomment this once you have everything working how you want and you are # ready to have ez-ipupdate running in the background all the time. to stop it --- a/example-pgpow.conf +++ b/example-pgpow.conf @@ -11,7 +11,7 @@ host=mydomain.penguinpowered.com interface=eth1 # if you use run-as ensure the user has permission to write this file -cache-file=/tmp/ez-ipupdate.cache +cache-file=/var/lib/ez-ipupdate/ez-ipupdate.cache # uncomment this once you have everything working how you want and you are # ready to have ez-ipupdate running in the background all the time. to stop it --- a/example-tzo.conf +++ b/example-tzo.conf @@ -15,7 +15,7 @@ max-interval=2073600 interface=eth1 # if you use run-as ensure the user has permission to write this file -cache-file=/tmp/ez-ipupdate.cache +cache-file=/var/lib/ez-ipupdate/ez-ipupdate.cache # uncomment this once you have everything working how you want and you are # ready to have ez-ipupdate running in the background all the time. to stop it