CVE-2011-0520
maradns - buffer overflow
EPSS 6.2%
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.
How to fix CVE-2011-0520
To remediate CVE-2011-0520, upgrade the affected package to a fixed version below.
- Debian/maradns—upgrade to 1.4.03-1.1 or later
- Debian/maradns—upgrade to 1.3.07.09-2.1 or later
Is CVE-2011-0520 being exploited?
Moderate — EPSS is 6.2%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (2)
- from 0, < 1.4.03-1.1
- from 0, < 1.3.07.09-2.1