Bug 972692
| Summary: | network-servcies should be a hardening build / RELRO / PIE | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Harald Reindl <h.reindl> |
| Component: | samba | Assignee: | Guenther Deschner <gdeschner> |
| Status: | CLOSED ERRATA | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 18 | CC: | abokovoy, asn, gdeschner, jlayton, sbose, ssorce |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | samba-4.0.7-2.fc19 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2013-07-25 00:42:35 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
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Description
Harald Reindl
2013-06-10 12:17:31 UTC
This will be fixed soon when Samba 4.0.7 is released. 4.0.7 is PIE but still *not* full RELO http://tk-blog.blogspot.co.at/2009/02/relro-not-so-well-known-memory.html as maintainer of server-packages you should install "checksec" and "hardening-check" which are in the Fedora repos for F18, F19 and F20 [root@srv-rhsoft:~]$ hardening-check /usr/sbin/smbd /usr/sbin/smbd: Position Independent Executable: yes Stack protected: yes Fortify Source functions: yes (some protected functions found) Read-only relocations: yes Immediate binding: no, not found! [root@srv-rhsoft:~]$ checksec --file /usr/sbin/smbd RELRO STACK CANARY NX PIE RPATH RUNPATH FILE Partial RELRO Canary found NX enabled PIE enabled RPATH No RUNPATH /usr/sbin/smbd Ok, I will propose a patch for 4.0.8 to enable RELRO. thx, but this can be fixed in 99% of all cases in the RPM SPEC export LDFLAGS="-Wl,-z,now -Wl,-z,relro,-z" before %configure and you are mostly done i am using this for any local maintained package as well as explicit CFLAGS for hardening with stronger options than Fedora defaults (httpd, php, dovecot, postfix, dbmail, trafficserver....) and i would like to use the fedota-samba apckages instead add it my "private builds" argh - errata
export LDFLAGS="-Wl,-z,now -Wl,-z,relro"
_____________________________________
the trailing ",z" came from copy&paste of my dovecot build
%build
export CFLAGS="%{optflags} -fPIC -fPIE -fstack-protector-all"
export CXXFLAGS="%{optflags} -fPIC -fPIE -fstack-protector-all"
export FFLAGS="%{optflags} -fPIC -fPIE -fstack-protector-all"
export CPPFLAGS="%{optflags} -fPIC -fPIE -fstack-protector-all"
export LDFLAGS="-Wl,-z,now -Wl,-z,relro,-z,noexecstack -pie"
export SH_LDFLAGS="-Wl,-z,now -Wl,-z,relro,-z,noexecstack -pie"
%configure.................
samba-4.0.7-2.fc19 has been submitted as an update for Fedora 19. https://admin.fedoraproject.org/updates/samba-4.0.7-2.fc19 that looks much better (samba-4.0.7-2.fc18.x86_64) [root@rh:~]$ hardening-check /usr/sbin/smbd /usr/sbin/smbd: Position Independent Executable: yes Stack protected: yes Fortify Source functions: yes (some protected functions found) Read-only relocations: yes Immediate binding: yes samba-4.0.7-2.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/samba-4.0.7-2.fc18 I've also added a patch upstream which checks if the linker supports it and enables it by default! Package samba-4.0.7-2.fc19: * should fix your issue, * was pushed to the Fedora 19 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing samba-4.0.7-2.fc19' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2013-13060/samba-4.0.7-2.fc19 then log in and leave karma (feedback). samba-4.0.7-2.fc18 has been pushed to the Fedora 18 stable repository. If problems still persist, please make note of it in this bug report. samba-4.0.7-2.fc19 has been pushed to the Fedora 19 stable repository. If problems still persist, please make note of it in this bug report. |