Title: Leafnode fetchnews Client Article Header Remote Denial of Service Vulnerability
Severity: MODERATE
Description:
Leafnode is a Usenet news proxy. It allows online newsreaders to read news offline. Fetchnews is a NNTP client software used with Leafnode.
Fetchnews is prone to a remote denial of service vulnerability that may allow a remote attacker to cause the software to hang.
The vulnerability manifests when an upstream news server terminates the connection abruptly after fetchnews has requested an article header and before the data transfer is complete.
Successful exploitation of this issue may cause the fetchnews software to crash or fail to query other news servers that are listed after the malicious news server in the fetchnews configuration file.
This vulnerability affects Leafnode 1.9.48 to 1.11.1. The vendor has advised that versions 1.11.2 and newer are not vulnerable to this issue.
Affected Products:
- Leafnode Leafnode 1.11.1
- Leafnode Leafnode 1.9.19
- Leafnode Leafnode 1.9.20
- Leafnode Leafnode 1.9.21
- Leafnode Leafnode 1.9.22
- Leafnode Leafnode 1.9.23
- Leafnode Leafnode 1.9.24
- Leafnode Leafnode 1.9.25
- Leafnode Leafnode 1.9.26
- Leafnode Leafnode 1.9.27
- Leafnode Leafnode 1.9.29
- Leafnode Leafnode 1.9.30
- Leafnode Leafnode 1.9.31
- Leafnode Leafnode 1.9.35
- Leafnode Leafnode 1.9.36
- Leafnode Leafnode 1.9.37
- Leafnode Leafnode 1.9.38
- Leafnode Leafnode 1.9.39
- Leafnode Leafnode 1.9.40
- Leafnode Leafnode 1.9.41
- Leafnode Leafnode 1.9.42
- Leafnode Leafnode 1.9.43
- Leafnode Leafnode 1.9.45
- Leafnode Leafnode 1.9.47
- Leafnode Leafnode 1.9.48
- Leafnode Leafnode 1.9.49
- Leafnode Leafnode 1.9.50
- MandrakeSoft Corporate Server 3.0.0
- MandrakeSoft Corporate Server 3.0.0 x86_64
- MandrakeSoft Linux Mandrake 10.1.0
- MandrakeSoft Linux Mandrake 10.1.0 x86_64
- MandrakeSoft Linux Mandrake 10.2.0
- MandrakeSoft Linux Mandrake 10.2.0 x86_64
- MandrakeSoft Linux Mandrake 8.2.0
- MandrakeSoft Linux Mandrake 8.2.0 ppc
- MandrakeSoft Linux Mandrake 9.0.0
References:
- Leafnode: Leafnode Home Page
- Leafnode: potential denial of service in leafnode
- SourceForge: Leafnode
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