CVE-2011-4528
EPSS 2.9%unbound - several
Published: 12/20/2011Modified: 4/28/2026
Description
Unbound before 1.4.13p2 attempts to free unallocated memory during processing of duplicate CNAME records in a signed zone, which allows remote DNS servers to cause a denial of service (daemon crash) via a crafted response.
Affected packages (2)
- Debian/unboundfrom 0, < 1.4.14-1
- Debian/unboundfrom 0, < 1.4.6-1~lenny2