Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2009-4893

Severity CVSS v4.0:
Pending analysis
Type:
CWE-119 Buffer Errors
Publication date:
15/06/2010
Last modified:
11/04/2025

Description

Buffer overflow in UnrealIRCd 3.2beta11 through 3.2.8, when allow::options::noident is enabled, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.

Impact

Vector 2.0
AV:N/AC:M/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.80 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
6.80
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:unrealircd:unrealircd:3.2:beta11:*:*:*:*:*:*
cpe:2.3:a:unrealircd:unrealircd:3.2.1:*:*:*:*:*:*:*
cpe:2.3:a:unrealircd:unrealircd:3.2.1:pre1:*:*:*:*:*:*
cpe:2.3:a:unrealircd:unrealircd:3.2.1:pre2:*:*:*:*:*:*
cpe:2.3:a:unrealircd:unrealircd:3.2.2:*:*:*:*:*:*:*
cpe:2.3:a:unrealircd:unrealircd:3.2.2:pre1:*:*:*:*:*:*
cpe:2.3:a:unrealircd:unrealircd:3.2.3:*:*:*:*:*:*:*
cpe:2.3:a:unrealircd:unrealircd:3.2.3:pre1:*:*:*:*:*:*
cpe:2.3:a:unrealircd:unrealircd:3.2.3:pre2:*:*:*:*:*:*
cpe:2.3:a:unrealircd:unrealircd:3.2.3:pre3:*:*:*:*:*:*
cpe:2.3:a:unrealircd:unrealircd:3.2.3:pre4:*:*:*:*:*:*
cpe:2.3:a:unrealircd:unrealircd:3.2.4:*:*:*:*:*:*:*
cpe:2.3:a:unrealircd:unrealircd:3.2.4:pre1:*:*:*:*:*:*
cpe:2.3:a:unrealircd:unrealircd:3.2.4:pre2:*:*:*:*:*:*
cpe:2.3:a:unrealircd:unrealircd:3.2.4:rc1:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools