CVSS2
Attack Vector
LOCAL
Attack Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:H/Au:N/C:P/I:P/A:P
EPSS
Percentile
5.1%
CentOS Errata and Security Advisory CESA-2011:1089
SystemTap is an instrumentation system for systems running the Linux
kernel. The system allows developers to write scripts to collect data on
the operation of the system.
A race condition flaw was found in the way the staprun utility performed
module loading. A local user who is a member of the stapusr group could use
this flaw to modify a signed module while it is being loaded, allowing them
to escalate their privileges. (CVE-2011-2503)
SystemTap users should upgrade to these updated packages, which contain a
backported patch to correct this issue.
Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2011-September/080158.html
https://lists.centos.org/pipermail/centos-announce/2011-September/080160.html
https://lists.centos.org/pipermail/centos-cr-announce/2011-September/026560.html
https://lists.centos.org/pipermail/centos-cr-announce/2011-September/026561.html
Affected packages:
systemtap
systemtap-client
systemtap-initscript
systemtap-runtime
systemtap-sdt-devel
systemtap-server
systemtap-testsuite
Upstream details at:
https://access.redhat.com/errata/RHSA-2011:1089