CVE-2009-4893: Buffer Overflow

Published Jun 15, 2010
·
Updated

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.

Affected Software

31 affected components
UnrealIRCd UnrealIRCd=3.2-beta11
UnrealIRCd UnrealIRCd=3.2.1
UnrealIRCd UnrealIRCd=3.2.1-pre1
UnrealIRCd UnrealIRCd=3.2.1-pre2
UnrealIRCd UnrealIRCd=3.2.2
UnrealIRCd UnrealIRCd=3.2.2-pre1
UnrealIRCd UnrealIRCd=3.2.3
UnrealIRCd UnrealIRCd=3.2.3-pre1
UnrealIRCd UnrealIRCd=3.2.3-pre2
UnrealIRCd UnrealIRCd=3.2.3-pre3
UnrealIRCd UnrealIRCd=3.2.3-pre4
UnrealIRCd UnrealIRCd=3.2.4
UnrealIRCd UnrealIRCd=3.2.4-pre1
UnrealIRCd UnrealIRCd=3.2.4-pre2
UnrealIRCd UnrealIRCd=3.2.4-rc1
UnrealIRCd UnrealIRCd=3.2.4-rc2
UnrealIRCd UnrealIRCd=3.2.4-rc3
UnrealIRCd UnrealIRCd=3.2.5
UnrealIRCd UnrealIRCd=3.2.5-rc1
UnrealIRCd UnrealIRCd=3.2.5-rc2
UnrealIRCd UnrealIRCd=3.2.5-rc3
UnrealIRCd UnrealIRCd=3.2.6
UnrealIRCd UnrealIRCd=3.2.6-rc1
UnrealIRCd UnrealIRCd=3.2.6-rc2
UnrealIRCd UnrealIRCd=3.2.6-rc3
UnrealIRCd UnrealIRCd=3.2.7
UnrealIRCd UnrealIRCd=3.2.7-rc1
UnrealIRCd UnrealIRCd=3.2.7-rc2
UnrealIRCd UnrealIRCd=3.2.8
UnrealIRCd UnrealIRCd=3.2.8-rc1
UnrealIRCd UnrealIRCd=3.2.8-rc2

Event History

Jun 15, 2010
CVE Published
via MITRE·01:00 AM
Data Sourced
via MITRE·01:00 AM
Description

Frequently Asked Questions

1

What is the severity of CVE-2009-4893?

The severity of CVE-2009-4893 is medium with a CVSS score of 6.8.

2

How can I fix CVE-2009-4893?

To fix CVE-2009-4893, upgrading UnrealIRCd to version 3.2.9 or later is recommended.

3

What type of vulnerability is CVE-2009-4893?

CVE-2009-4893 is a buffer overflow vulnerability.

4

What impacts could CVE-2009-4893 have on my system?

CVE-2009-4893 may lead to a denial of service (crash) and potentially allow arbitrary code execution.

5

Which versions of UnrealIRCd are affected by CVE-2009-4893?

UnrealIRCd versions 3.2beta11 through 3.2.8 are affected by CVE-2009-4893.

Contact

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