CVE-2011-0520 describes a heap-based buffer overflow in the compress_add_dlabel_points function of MaraDNS versions 1.4.03 and 1.4.05. This vulnerability allows remote attackers to cause a denial of service (segmentation fault) and potentially execute arbitrary code by sending a long DNS hostname with numerous labels. With a CVSS score of 7.5, it is considered highly severe due to its network-based attack vector, low attack complexity, and potential for partial impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.4.03CPE matchmatch criteria | cpe:2.3:a:maradns:maradns:1.4.03:*:*:*:*:*:*:* | ||
1.4.05CPE matchmatch criteria | cpe:2.3:a:maradns:maradns:1.4.05:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:P
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.