Vulnerability Details : CVE-2011-1769
SystemTap 1.4 and earlier, 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 context variable access.
Vulnerability category: Denial of service
Products affected by CVE-2011-1769
- cpe:2.3:a:systemtap:systemtap:*:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:1.0:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.7.2:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.7:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.5.9:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.5.8:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.4:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.2.2:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.9.8:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.9.7:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.9.5:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.5.14:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.5.13:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.5.4:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.5.3:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.9:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.8:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.5.12:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.5.10:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.5:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.3:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.9.9:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.6.2:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.6:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.5.7:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:0.5.5:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:1.1:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:1.3:*:*:*:*:*:*:*
- cpe:2.3:a:systemtap:systemtap:1.2:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2011-1769
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 19 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2011-1769
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
1.2
|
LOW | AV:L/AC:H/Au:N/C:N/I:N/A:P |
1.9
|
2.9
|
NIST |
CWE ids for CVE-2011-1769
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2011-1769
-
https://bugzilla.redhat.com/show_bug.cgi?id=702687
702687 – (CVE-2011-1769) CVE-2011-1769 systemtap: does not guard against DWARF operations div-by-zero errors, which can cause a kernel panicPatch
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https://rhn.redhat.com/errata/RHSA-2011-0842.html
RHSA-2011:0842 - Security Advisory - Red Hat Customer Portal
-
http://openwall.com/lists/oss-security/2011/05/20/2
oss-security - systemtap divide-by-zero issues (CVE-2011-1769, CVE-2011-1781)Patch
-
http://sourceware.org/git/?p=systemtap.git%3Ba=commit%3Bh=fa2e3415185a28542d419a641ecd6cddd52e3cd9
sourceware.org Git
-
http://www.mandriva.com/security/advisories?name=MDVSA-2011:154
mandriva.com
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http://www.mandriva.com/security/advisories?name=MDVSA-2011:155
mandriva.com
-
http://www.securityfocus.com/bid/47934
SystemTap DWARF Expression Handling Two Divide-By-Zero Denial of Service Vulnerabilities
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