CVE catalog
CVE-2011-4858
tomcat6 - several
- Severity
- Unknown
- Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 79.71% · Oct 25, 2026
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. tomcat: hash table collisions CPU usage DoS (oCERT-2011-003) The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | tomcat6 | 6.0 | 6.0.28-10 | vulnerable |
| Debian | tomcat6 | 6.0 | 6.0.28-9 | vulnerable |
| Debian | tomcat6 | 6.0 | 6.0.28-9+squeeze1 | vulnerable |
| Debian | tomcat6 | 6.0 | 6.0.32-1 | vulnerable |
| Debian | tomcat6 | 6.0 | 6.0.32-2 | vulnerable |
| Debian | tomcat6 | 6.0 | 6.0.32-3 | vulnerable |
| Debian | tomcat6 | 6.0 | 6.0.32-4 | vulnerable |
| Debian | tomcat6 | 6.0 | 6.0.32-5 | vulnerable |
| Debian | tomcat6 | 6.0 | 6.0.32-6 | vulnerable |
| Debian | tomcat6 | 6.0 | 6.0.32-7 | vulnerable |
| Debian | tomcat6 | 6.0 | 6.0.33-1 | vulnerable |
| Debian | tomcat6 | 6.0 | 6.0.35-1 | vulnerable |
| Debian | tomcat6 | 6.0 | 6.0.35-1+squeeze2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | tomcat6 | deb | 6.0 | 6.0.35-1+squeeze2 | Not reported | DSA-2401-1 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed: