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ISC BIND DoS Vulnerability (CVE-2018-5734) - Linux
Information
Severity
Severity
Medium
Family
Family
Denial of Service
CVSSv2 Base
CVSSv2 Base
5.0
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Solution Type
Solution Type
Vendor Patch
Created
Created
2 years ago
Modified
Modified
2 years ago
Summary
ISC BIND is prone to a denial of service (DoS) vulnerability.
Insight
Insight
While handling a particular type of malformed packet, BIND erroneously selects a SERVFAIL rcode instead of a FORMERR rcode. If the receiving view has the SERVFAIL cache feature enabled, this can trigger an assertion failure in badcache.c when the request doesn't contain all of the expected information.
Affected Software
Affected Software
BIND 9.10.5-S1 through 9.10.5-S4, 9.10.6-S1 and 9.10.6-S2.
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Update to version 9.10.6-S3 or later.