CVE-2006-6811
Summary
| CVE | CVE-2006-6811 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2006-12-29 11:28:00 UTC |
| Updated | 2026-04-23 00:35:47 UTC |
| Description | KsIRC 1.3.12 allows remote attackers to cause a denial of service (crash) via a long PRIVMSG string when connecting to an Internet Relay Chat (IRC) server, which causes an assertion failure and results in a NULL pointer dereference. NOTE: this issue was originally reported as a buffer overflow. |
Risk And Classification
Primary CVSS: v3.1 6.5 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Problem Types: CWE-617 | n/a
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| 2.0 | [email protected] | Primary | 4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
RequiredScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
MediumAuthentication
NoneConfidentiality
NoneIntegrity
NoneAvailability
PartialAV:N/AC:M/Au:N/C:N/I:N/A:P
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Canonical | Ubuntu Linux | 5.10 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 6.06 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 6.10 | All | All | All |
| Application | Kde | Ksirc | 1.3.12 | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| osvdb.org/33443 | af854a3a-2127-422b-91ae-364da2661108 | osvdb.org | Broken Link |
| KsIRC 1.3.12 (PRIVMSG) Remote Buffer Overflow PoC - addict3d.org | af854a3a-2127-422b-91ae-364da2661108 | www.addict3d.org | Broken Link |
| Gentoo Linux Documentation -- KSirc: Denial of Service vulnerability | af854a3a-2127-422b-91ae-364da2661108 | security.gentoo.org | Third Party Advisory |
| SecurityTracker.com Archives - KSirc Client PRIVMSG Buffer Overflow May Let Remote Users Execute Arbitrary Code | af854a3a-2127-422b-91ae-364da2661108 | securitytracker.com | Broken Link, Third Party Advisory, VDB Entry |
| www.kde.org/info/security/advisory-20070109-1.txt | af854a3a-2127-422b-91ae-364da2661108 | www.kde.org | Third Party Advisory |
| Security Advisories | Mandriva Linux | af854a3a-2127-422b-91ae-364da2661108 | www.mandriva.com | Broken Link |
| issues.rpath.com/browse/RPL-922 | af854a3a-2127-422b-91ae-364da2661108 | issues.rpath.com | Broken Link |
| IBM X-Force Exchange | af854a3a-2127-422b-91ae-364da2661108 | exchange.xforce.ibmcloud.com | Third Party Advisory, VDB Entry |
| KSirc IRC Client Remote PRIVMSG Denial of Service Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | Broken Link, Exploit, Third Party Advisory, VDB Entry |
| SecurityFocus | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | Broken Link, Third Party Advisory, VDB Entry |
| KsIRC 1.3.12 (PRIVMSG) Remote Buffer Overflow PoC | af854a3a-2127-422b-91ae-364da2661108 | www.exploit-db.com | Exploit, Third Party Advisory, VDB Entry |
| USN-409-1: ksirc vulnerability | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | www.ubuntu.com | Third Party Advisory |
| Webmail- OVH | af854a3a-2127-422b-91ae-364da2661108 | www.vupen.com | Broken Link |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
| Organization | Published | Contributor | Statement |
|---|---|---|---|
| Red Hat | 2007-01-18 | Mark J Cox | We do not consider a crash of a client application such as KsIRC to be a security issue. |
There are currently no legacy QID mappings associated with this CVE.