Improper Input Validation Affecting systemtap package, versions <0:1.4-6.el6_1.2


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-RHEL6-SYSTEMTAP-1431077
  • published26 Jul 2021
  • disclosed25 Jul 2011

Introduced: 25 Jul 2011

CVE-2011-2503  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade RHEL:6 systemtap to version 0:1.4-6.el6_1.2 or higher.
This issue was patched in RHSA-2011:1088.

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemtap package and not the systemtap package as distributed by RHEL. See How to fix? for RHEL:6 relevant fixed versions and status.

The insert_module function in runtime/staprun/staprun_funcs.c in the systemtap runtime tool (staprun) in SystemTap before 1.6 does not properly validate a module when loading it, which allows local users to gain privileges via a race condition between the signature validation and the module initialization.

CVSS Scores

version 3.1