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.
2018-01-23T16:29:00.273
2024-11-21T03:14:05.047
Modified
CVSSv3.0: 5.3 (MEDIUM)
AV:N/AC:L/Au:N/C:N/I:P/A:N
10.0
2.9
Type | Vendor | Product | Version/Range | Vulnerable? |
---|---|---|---|---|
Application | nlnetlabs | unbound | < 1.6.8 | Yes |
Operating System | debian | debian_linux | 7.0 | Yes |
Operating System | debian | debian_linux | 8.0 | Yes |
Operating System | canonical | ubuntu_linux | 14.04 | Yes |
Operating System | canonical | ubuntu_linux | 16.04 | Yes |
Operating System | canonical | ubuntu_linux | 17.10 | Yes |
Operating System | canonical | ubuntu_linux | 18.04 | Yes |