Description
A specially crafted domain can be used to cause a memory leak in a BIND resolver simply by querying this domain. This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1. BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- ISC / BIND9.20.0 – 9.20.21
- ISC / BIND 99.20.0 – 9.20.20
- ISC / BIND 99.21.0 – 9.21.19
- ISC / BIND 99.20.9-S1 – 9.20.20-S1
- ISC / BIND 99.18.0 – 9.18.46
- ISC / BIND 99.18.11-S1 – 9.18.46-S1
Updated 38m ago · 8 sources