CVEvulnerability

CVE-2011-0520

7.5 HIGH Published 2011-01-28 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2011-01-28
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-119

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.

Affected configurations

• maradns maradns 1.4.03 • maradns maradns 1.4.05

Related

Weakness · CWE (1)

  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness

References