5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.651 Medium
EPSS
Percentile
97.9%
Apache Tomcat before 5.5.35, 6.x before 6.0.35, and 7.x before 7.0.23 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.
CPE | Name | Operator | Version |
---|---|---|---|
org.apache.tomcat:tomcat | lt | 7.0.23 | |
org.apache.tomcat:tomcat | lt | 6.0.35 | |
org.apache.tomcat:tomcat | lt | 5.5.35 |
mail-archives.apache.org/mod_mbox/tomcat-announce/201112.mbox/%[email protected]%3e
marc.info/?l=bugtraq&m=132871655717248&w=2
marc.info/?l=bugtraq&m=133294394108746&w=2
marc.info/?l=bugtraq&m=136485229118404&w=2
rhn.redhat.com/errata/RHSA-2012-0074.html
rhn.redhat.com/errata/RHSA-2012-0075.html
rhn.redhat.com/errata/RHSA-2012-0076.html
tomcat.apache.org/tomcat-7.0-doc/changelog.html
www.debian.org/security/2012/dsa-2401
www.kb.cert.org/vuls/id/903934
www.nruns.com/_downloads/advisory28122011.pdf
www.ocert.org/advisories/ocert-2011-003.html
bugzilla.redhat.com/show_bug.cgi?id=750521
github.com/advisories/GHSA-wr3m-gw98-mc3j
github.com/FireFart/HashCollision-DOS-POC/blob/master/HashtablePOC.py
nvd.nist.gov/vuln/detail/CVE-2011-4858
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18886