- Vulnerabilities 87,972
ISC BIND DoS Vulnerability (CVE-2018-5734) - Linux
Published: 2021-09-06 09:48:22
CVE Author: NIST National Vulnerability Database
CVSS Base Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:P
severity_vector=CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
severity_origin=NVD
severity_date=2019-10-09 23:41:00 +0000 (Wed, 09 Oct 2019)
Detection Type:
Remote Banner Unreliable
Solution Type:
Vendor Patch
Summary:
ISC BIND is prone to a denial of service (DoS) vulnerability.
Detection Method:
Checks if a vulnerable version is present on the target host.
Technical Details:
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.
Impact:
Servers running the affected versions are vulnerable if they
allow recursion, unless the SERVFAIL cache is disabled for the receiving view.
Affected Versions:
BIND 9.10.5-S1 through 9.10.5-S4, 9.10.6-S1 and 9.10.6-S2.
Recommendations:
Update to version 9.10.6-S3 or later.
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