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Vulnerability record · CVE-2010-0300 · published 4 February 2010

CVE-2010-0300: Ircd-ratbox vulnerability

IIrcd Ratbox · Ircd Ratbox

cache.c in ircd-ratbox before 2.2.9 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a HELP command.

5.0 CVSS 2.0 Medium EPSS 2.2% · top 17.8%
5.0CVSS 2.0 base score
2.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References
16 Jun 2026Last modified by NVD

Description

cache.c in ircd-ratbox before 2.2.9 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a HELP command.

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.ratbox.org/pipermail/ircd-ratbox/2010-January/000891.html
http://secunia.com/advisories/38210 Vendor Advisory
http://secunia.com/advisories/38383 Vendor Advisory
http://security.debian.org/pool/updates/main/i/ircd-ratbox/ircd-ratbox_2.2.8.dfsg-2+lenny1.diff.gz
http://www.debian.org/security/2010/dsa-1980
http://lists.ratbox.org/pipermail/ircd-ratbox/2010-January/000891.html
http://secunia.com/advisories/38210 Vendor Advisory
http://secunia.com/advisories/38383 Vendor Advisory
http://security.debian.org/pool/updates/main/i/ircd-ratbox/ircd-ratbox_2.2.8.dfsg-2+lenny1.diff.gz
http://www.debian.org/security/2010/dsa-1980

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

6.8CVE-2009-4016Ircd-hybrid vulnerabilityInteger underflow in the clean_string function in irc_string.c in (1) IRCD-hybrid 7.2.2 and 7.2.3, (2) ircd-ratbox before 2.2.9, and (3) oftc-hybrid …EPSS 4.0%5.0CVE-2012-6084Ircd-ratbox vulnerabilitymodules/m_capab.c in (1) ircd-ratbox before 3.0.8 and (2) Charybdis before 3.4.2 does not properly support capability negotiation during server hands…EPSS 3.0%5.0CVE-2007-2786Ircd-ratbox vulnerabilityRatbox IRC Daemon (aka ircd-ratbox) 2.2.5 and earlier allows remote attackers to cause a denial of service (resource exhaustion) by making many reque…EPSS 1.7%5.0CVE-2004-0605Ircd-hybrid vulnerabilityNon-registered IRC users using (1) ircd-hybrid 7.0.1 and earlier, (2) ircd-ratbox 1.5.1 and earlier, or (3) ircd-ratbox 2.0rc6 and earlier do not hav…EPSS 7.3%

Source: NIST National Vulnerability Database (record CVE-2010-0300), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.