CVE-2009-4893
Summary
| CVE | CVE-2009-4893 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2010-06-15 14:04:26 UTC |
| Updated | 2026-04-29 01:13:23 UTC |
| 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. |
Risk And Classification
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
MediumAuthentication
NoneConfidentiality
PartialIntegrity
PartialAvailability
PartialAV:N/AC:M/Au:N/C:P/I:P/A:P
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Unrealircd | Unrealircd | 3.2 | beta11 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.1 | All | All | All |
| Application | Unrealircd | Unrealircd | 3.2.1 | pre1 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.1 | pre2 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.2 | All | All | All |
| Application | Unrealircd | Unrealircd | 3.2.2 | pre1 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.3 | All | All | All |
| Application | Unrealircd | Unrealircd | 3.2.3 | pre1 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.3 | pre2 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.3 | pre3 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.3 | pre4 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.4 | All | All | All |
| Application | Unrealircd | Unrealircd | 3.2.4 | pre1 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.4 | pre2 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.4 | rc1 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.4 | rc2 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.4 | rc3 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.5 | All | All | All |
| Application | Unrealircd | Unrealircd | 3.2.5 | rc1 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.5 | rc2 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.5 | rc3 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.6 | All | All | All |
| Application | Unrealircd | Unrealircd | 3.2.6 | rc1 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.6 | rc2 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.6 | rc3 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.7 | All | All | All |
| Application | Unrealircd | Unrealircd | 3.2.7 | rc1 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.7 | rc2 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.8 | All | All | All |
| Application | Unrealircd | Unrealircd | 3.2.8 | rc1 | All | All |
| Application | Unrealircd | Unrealircd | 3.2.8 | rc2 | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| UnrealIRCd User Authentication Buffer Overflow Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | |
| www.unrealircd.com/txt/unrealsecadvisory.20090413.txt | af854a3a-2127-422b-91ae-364da2661108 | www.unrealircd.com | Vendor Advisory |
| oss-security - Re: CVE request: UnrealIRCd 3.2.8.1 source code contained a backdoor allowing for remote command execution | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | |
| Gentoo Linux Documentation -- UnrealIRCd: Multiple vulnerabilities | af854a3a-2127-422b-91ae-364da2661108 | security.gentoo.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.