CVE-2015-5986: An incorrect boundary check can trigger a REQUIRE assertion failure in openpgpkey_61.c
mcnally at isc.org
Wed Sep 2 19:55:39 UTC 2015
Document Version: 2.0
Posting date: 02 September 2015
Program Impacted: BIND
Versions affected: 9.9.7 -> 9.9.7-P2, 9.10.2 -> 9.10.2-P3.
An incorrect boundary check in openpgpkey_61.c can cause named
to terminate due to a REQUIRE assertion failure. This defect
can be deliberately exploited by an attacker who can provide a
maliciously constructed response in answer to a query.
A server which encounters this error will terminate due to a
REQUIRE assertion failure, resulting in denial of service to
Recursive servers are at greatest risk from this defect but some
circumstances may exist in which the attack can be successfully
exploited against an authoritative server. Servers should be
upgraded to a fixed version.
CVSS Score: 7.1
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:C)
For more information on the Common Vulnerability Scoring System
and to obtain your specific environmental score please visit:
No workarounds are known to exist.
Upgrade to the patched release most closely related to your
current version of BIND. These can all be downloaded from
+ BIND 9 version 9.9.7-P3
+ BIND 9 version 9.10.2-P4
BIND development releases scheduled to be published at the same
time as the public disclosure of this vulnerability will also
contain the fix for this security issue.
+ BIND 9 version 9.9.8rc1
+ BIND 9 version 9.10.3rc1
Document Revision History:
1.0 Advance Notification 19 August, 2015
2.0 Public Disclosure 2 September, 2015
See our BIND9 Security Vulnerability Matrix at
https://kb.isc.org/article/AA-00913 for a complete listing of
Security Vulnerabilities and versions affected.
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indicate EOL versions affected. (For current information on
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This Knowledge Base article https://kb.isc.org/article/AA-01291 is
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