Vulnerability Details : CVE-2011-4838
JRuby before 1.6.5.1 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table.
Vulnerability category: Denial of service
Products affected by CVE-2011-4838
- cpe:2.3:a:jruby:jruby:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2011-4838
0.98%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 81 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2011-4838
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST |
CWE ids for CVE-2011-4838
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by: nvd@nist.gov (Primary)
References for CVE-2011-4838
-
http://www.nruns.com/_downloads/advisory28122011.pdf
Best 7 Best Internet Security Software in 2019Third Party Advisory
-
http://www.kb.cert.org/vuls/id/903934
VU#903934 - Hash table implementations vulnerable to algorithmic complexity attacksThird Party Advisory;US Government Resource
-
http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html
Broken Link
-
http://www.ocert.org/advisories/ocert-2011-003.html
oCERT archiveThird Party Advisory
-
http://jruby.org/2011/12/27/jruby-1-6-5-1.html
Vendor Advisory
-
https://exchange.xforce.ibmcloud.com/vulnerabilities/72019
JRuby hash denial of service CVE-2011-4838 Vulnerability ReportThird Party Advisory;VDB Entry
-
http://security.gentoo.org/glsa/glsa-201207-06.xml
JRuby: Denial of Service (GLSA 201207-06) — Gentoo securityThird Party Advisory
-
http://rhn.redhat.com/errata/RHSA-2012-1232.html
Red Hat Customer PortalBroken Link
Jump to