Arch Linux Security Advisory ASA-201704-11

Severity: High
Date : 2017-04-29
CVE-ID : CVE-2017-3136 CVE-2017-3137 CVE-2017-3138
Package : bind
Type : denial of service
Remote : Yes
Link : https://security.archlinux.org/AVG-239

Summary

The package bind before version 9.11.1-1 is vulnerable to denial of
service.

Resolution

Upgrade to 9.11.1-1.

pacman -Syu “bind>=9.11.1-1”

The problems have been fixed upstream in version 9.11.1.

Workaround

None.

Description

• CVE-2017-3136 (denial of service)

A security issue has been found in bind, where an error handling
synthesized records could cause an assertion failure when using DNS64
with “break-dnssec yes;”.

• CVE-2017-3137 (denial of service)

A security issue has been found in bind, where a server which is
performing recursion can be forced to exit with an assertion failure if
it can be caused to receive a response containing CNAME or DNAME
resource records with certain ordering.

• CVE-2017-3138 (denial of service)

A security issue has been found in the bind named daemon, that will
exit with a “require” assertion failure if it receives a null command
string on its control channel. The control channel is not enabled by
default and is usually restricted to a few remote hosts via an ACL
and/or a transaction key.

Impact

A remote attacker can crash the application, leading to denial of
service.

References

https://deepthought.isc.org/article/AA-01471
https://deepthought.isc.org/article/AA-01465
https://deepthought.isc.org/article/AA-01466
https://security.archlinux.org/CVE-2017-3136
https://security.archlinux.org/CVE-2017-3137
https://security.archlinux.org/CVE-2017-3138