CVE-2011-4528 is a denial-of-service vulnerability affecting Unbound DNS resolver versions prior to 1.4.13p2. It allows a remote malicious DNS server to crash the Unbound daemon by sending a crafted response containing duplicate CNAME records in a signed zone, leading to an attempt to free unallocated memory. The vulnerability has a CVSS score of 5.0, indicating a medium severity with low attack complexity and no authentication required, resulting in a partial availability impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 1.4.13CPE matchmatch criteria | cpe:2.3:a:unbound:unbound:*:*:*:*:*:*:*:* | ||
0.0CPE matchmatch criteria | cpe:2.3:a:unbound:unbound:0.0:*:*:*:*:*:*:* | ||
0.1CPE matchmatch criteria | cpe:2.3:a:unbound:unbound:0.1:*:*:*:*:*:*:* | ||
0.2CPE matchmatch criteria | cpe:2.3:a:unbound:unbound:0.2:*:*:*:*:*:*:* | ||
0.3CPE matchmatch criteria | cpe:2.3:a:unbound:unbound:0.3:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.