Hello Salvatore, On 25.05.2015 09:21, Salvatore Bonaccorso wrote: [...] >> I think the issue warrants a DSA since it is remotely exploitable >> although the severity and impact are probably only moderate for most setups. > > Sourcewise the debdiffs looks good to me. But no I'm not really > familar with the source package. Were the changes sucessfully as well > tested in some (production) environment?
I know that the same patch was applied to four Red Hat products one month ago. [1] Building and updating the package works as expected. I am familiar with the Apache web server but I don't run the Apache + Tomcat + mod_jk combination and have no way to test this change in a production environment. The change will enable a new default option "CollapseSlashesUnmount". For Debian only the changes in the apache-2.0 module are important but I left the patch intact, who knows what corner cases exist out there with Apache-1.3 servers. Judging from the patch the new jk_no2slash function is then responsible for removing adjacent slashes. I expect that no disruption occurs from applying this change but more testing and feedback are appreciated. > To already look ahead: If I see it correctly, wheezy and jessie share > the same original source, so > https://wiki.debian.org/DebianSecurity/AdvisoryCreation/SecFull#Stable_and_oldstable_sharing_the_same_upstream_tarball > will aply, so when we then go ahead, the first upload need to be build > with -sa, wait to have it accepted on security-master side, and then > upload the second without including the original source (otherwise > there are problems when pushing the package to ftp-master from > security-master). Please note that I can't upload the package myself, so someone from the Java or security team is needed for the final upload. >> It was discovered that a JkUnmount rule for a subtree of a previous >> JkMount rule could be ignored. This could allow a remote attacker to >> potentially access a private artifact in a tree that would otherwise not >> be accessible to them. > > Please add here a introductory description of libapache-mod-jk. E.g. > "An information disclosure flaw was found in mod_jk, the Tomcat > Connector module for Apache. [...]" (or any improvement to this). There isn't much to say about libapache-mod-jk, but let's try this: An information disclosure flaw due to incorrect JkMount/JkUnmount directives processing was found in the Apache 2 module mod_jk to forward requests from the Apache web server to Tomcat. A JkUnmount rule for a subtree of a previous JkMount rule could be ignored. This could allow a remote attacker to potentially access a private artifact in a tree that would otherwise not be accessible to them. Regards, Markus [1] https://bugzilla.redhat.com/show_bug.cgi?id=1182591
signature.asc
Description: OpenPGP digital signature
