Nlnetlabs: >> Unbound Security Vulnerabilities
Unbound before 1.10.1 has Insufficient Control of Network Message Volume, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records.
CVSS Score
7.5
EPSS Score
0.098
Published
2020-05-19
Unbound before 1.10.1 has an infinite loop via malformed DNS answers received from upstream servers.
CVSS Score
7.5
EPSS Score
0.065
Published
2020-05-19
Unbound 1.6.4 through 1.9.4 contain a vulnerability in the ipsec module that can cause shell code execution after receiving a specially crafted answer. This issue can only be triggered if unbound was compiled with `--enable-ipsecmod` support, and ipsecmod is enabled and used in the configuration.
CVSS Score
7.3
EPSS Score
0.01
Published
2019-11-19
Unbound before 1.9.4 accesses uninitialized memory, which allows remote attackers to trigger a crash via a crafted NOTIFY query. The source IP address of the query must match an access-control rule.
CVSS Score
7.5
EPSS Score
0.012
Published
2019-10-03
A flaw was found in the way unbound before 1.6.8 validated wildcard-synthesized NSEC records. An improperly validated wildcard NSEC record could be used to prove the non-existence (NXDOMAIN answer) of an existing wildcard record, or trick unbound into accepting a NODATA proof.
CVSS Score
5.3
EPSS Score
0.007
Published
2018-01-23
iterator.c in NLnet Labs Unbound before 1.5.1 does not limit delegation chaining, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a large or infinite number of referrals.
CVSS Score
4.3
EPSS Score
0.105
Published
2014-12-11
Unbound before 1.4.4 does not send responses for signed zones after mishandling an unspecified query, which allows remote attackers to cause a denial of service (DNSSEC outage) via a crafted query.
CVSS Score
5.0
EPSS Score
0.002
Published
2011-06-02
daemon/worker.c in Unbound 1.x before 1.4.10, when debugging functionality and the interface-automatic option are enabled, allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a crafted DNS request that triggers improper error handling.
CVSS Score
4.3
EPSS Score
0.012
Published
2011-05-31
Unbound before 1.4.3 does not properly align structures on 64-bit platforms, which allows remote attackers to cause a denial of service (daemon crash) via unspecified vectors.
CVSS Score
5.0
EPSS Score
0.014
Published
2010-03-16
Unbound before 1.3.4 does not properly verify signatures for NSEC3 records, which allows remote attackers to cause secure delegations to be downgraded via DNS spoofing or other DNS-related attacks in conjunction with crafted delegation responses.
CVSS Score
7.5
EPSS Score
0.016
Published
2009-10-13