PT-2017-15678 · Isc+6 · Bind+6
Published
2017-01-12
·
Updated
2024-06-15
·
CVE-2017-3135
CVSS v3.1
7.5
High
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
BIND versions 9.8.8, 9.9.3 through 9.9.9-S7, 9.9.3 through 9.9.9-P5, 9.9.10b1, 9.10.0 through 9.10.4-P5, 9.10.5b1, 9.11.0 through 9.11.0-P2, 9.11.1b1
Description
The issue arises when using both DNS64 and RPZ to rewrite query responses, leading to inconsistent query processing states. This can result in either an INSIST assertion failure or an attempt to read through a NULL pointer, causing a denial of service.
Recommendations
For versions 9.8.8, 9.9.3 through 9.9.9-S7, 9.9.3 through 9.9.9-P5, 9.9.10b1, 9.10.0 through 9.10.4-P5, 9.10.5b1, 9.11.0 through 9.11.0-P2, 9.11.1b1, consider disabling the use of DNS64 and RPZ together until a patch is available.
As a temporary workaround, restrict the use of RPZ to minimize the risk of exploitation.
Avoid using DNS64 in conjunction with RPZ to rewrite query responses until the issue is resolved.
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
DoS
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Bind
Bind Server
Centos
Red Hat
Suse
Ubuntu