Vulnerability CVE-2011-1781
Published: 2011-08-29   Modified: 2012-02-13

Description:
SystemTap 1.4, when unprivileged (aka stapusr) mode is enabled, allows local users to cause a denial of service (divide-by-zero error and OOPS) via a crafted ELF program with DWARF expressions that are not properly handled by a stap script that performs stack unwinding (aka backtracing).

Type:

CWE-189

 (Numeric Errors)

CVSS2 => (AV:L/AC:H/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
1.2/10
2.9/10
1.9/10
Exploit range
Attack complexity
Authentication
Local
High
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Systemtap -> Systemtap 

 References:
https://rhn.redhat.com/errata/RHSA-2011-0842.html
https://bugzilla.redhat.com/show_bug.cgi?id=702687
http://www.securityfocus.com/bid/47934
http://www.mandriva.com/security/advisories?name=MDVSA-2011:155
http://sourceware.org/git/?p=systemtap.git;a=commit;h=fa2e3415185a28542d419a641ecd6cddd52e3cd9
http://secunia.com/advisories/44802
http://openwall.com/lists/oss-security/2011/05/20/2
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