Vulnerability in Unbound

CVE-2011-4528

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.

EPSS: 0.029 (85.7th percentile) — read the EPSS interpretation.

Affected products

Unbound — versions 0.0, 0.1, 0.2
N/a — versions n/a

Weakness classification (CWE)

CWE-399

References

cret@cert.org (x_refsource_CONFIRM, Patch, Vendor Advisory)
cret@cert.org (x_refsource_SECUNIA, third-party-advisory)
cret@cert.org (US Government Resource, x_refsource_CERT-VN, Patch, Third Party Advisory, third-party-advisory)
cret@cert.org (vendor-advisory, x_refsource_DEBIAN)
cret@cert.org (vendor-advisory, x_refsource_FEDORA)
cret@cert.org (x_refsource_OSVDB, vdb-entry)
cret@cert.org (vendor-advisory, x_refsource_FEDORA)