An integer overflow, leading to heap-based buffer overflow flaw was found in the way journald functionality of systemd, a system and service manager, processed native messages. A local attacker could provide a specially-crafted packet that when processed by systemd would lead to systemd daemon crash or, potentially, arbitrary code execution with the privileges of the user running the daemon. Issue found by Florian Weimer, Red Hat Product Security Team Upstream patch: [1] http://cgit.freedesktop.org/systemd/systemd/commit/?id=505b6a61c22d5565e9308045c7b9bf79f7d0517e
This issue has been addressed in the version of systemd as shipped with Fedora 18 and 19. (Current versions are not affected)
Acknowledgements: This issue was discovered by Florian Weimer of the Red Hat Product Security Team.
This was assigned CVE-2013-4391: http://www.openwall.com/lists/oss-security/2013/10/01/9