A security flaw was found in the way systemtap runtime tool (staprun) removed unused modules. A local attacker could use this flaw to conduct various denial of service attacks. References: [1] http://sources.redhat.com/ml/systemtap/2010-q4/msg00230.html Upstream changeset: [2] http://sources.redhat.com/git/gitweb.cgi?p=systemtap.git;a=commit;h=b7565b41228bea196cefa3a7d43ab67f8f9152e2 Acknowledgements: Red Hat would like to thank Tavis Ormandy for reporting this issue.
This issue did NOT affect the version of the systemtap package, as shipped with Red Hat Enterprise Linux 4, as that version uses completely different underlying logic for what is worthy regarding to modules removal. This issue affects the versions of the systemtap package, as shipped with Red Hat Enterprise Linux 5 and 6. -- This issue affects the versions of the systemtap package, as shipped with Fedora release of 12 and 13. Statement: This issue does not affect the version of the systemtap package as shipped with Red Hat Enterprise Linux 4.
The CVE identifier of CVE-2010-4171 has been assigned to this issue.
This issue has been addressed in following products: Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 6 Via RHSA-2010:0894 https://rhn.redhat.com/errata/RHSA-2010-0894.html
Created systemtap tracking bugs for this issue Affects: fedora-all [bug 654318]