PT-2019-4629 · Isc+6 · Bind+6
Published
2018-08-14
·
Updated
2024-06-15
·
CVE-2018-5745
CVSS v3.1
4.9
Medium
| Vector | AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
BIND versions 9.9.0 through 9.10.8-P1
BIND versions 9.11.0 through 9.11.5-P1
BIND versions 9.12.0 through 9.12.3-P1
BIND 9 Supported Preview Edition versions 9.9.3-S1 through 9.11.5-S3
BIND versions 9.13.0 through 9.13.6
Description
The issue is related to an error in the managed-keys feature of the BIND server, which can cause the server to exit due to an assertion failure when a trust anchor's keys are replaced with keys using an unsupported algorithm during key rollover. This can be exploited by a remote attacker to cause a denial of service.
Recommendations
For BIND versions 9.9.0 through 9.10.8-P1, update to a version that fixes the issue.
For BIND versions 9.11.0 through 9.11.5-P1, update to a version that fixes the issue.
For BIND versions 9.12.0 through 9.12.3-P1, update to a version that fixes the issue.
For BIND 9 Supported Preview Edition versions 9.9.3-S1 through 9.11.5-S3, update to a version that fixes the issue.
For BIND versions 9.13.0 through 9.13.6, update to a version that fixes the issue.
As a temporary workaround, consider disabling the managed-keys feature until a patch is available.
Exploit
Fix
Allocation of Resources Without Limits
Use of a Broken Cryptographic Algorithm
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Related Identifiers
Affected Products
Alt Linux
Bind
Bind Server
Centos
Red Hat
Suse
Ubuntu