CVE-2011-0520

High

Description

The compress_add_dlabel_points function in dns/Compress.c in MaraDNS 1.4.03, 1.4.05, and probably other versions allows remote attackers to cause a denial of service (segmentation fault) and possibly execute arbitrary code via a long DNS hostname with a large number of labels, which triggers a heap-based buffer overflow.

SeverityHigh
CVSS7.5
Exploit probability—
ProductMaradns
PublishedJan 28, 2011
First seenJan 28, 2011

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
maradns maradns1.4.03, 1.4.05—

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CVE-2011-0520 · Maradns · Dark Radar