Openwall GNU/*/Linux - a small security-enhanced Linux distro for servers
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Thu, 25 Apr 2019 12:13:37 +0200
From: Peter Korsgaard <peter@...sgaard.com>
To: Michael McNally <mcnally@....org>
Cc: oss-security@...ts.openwall.com
Subject: Re: Multiple BIND vulnerabilities disclosed (CVE-2018-5743, CVE-2019-6467, and CVE-2019-6468)

>>>>> "Michael" == Michael McNally <mcnally@....org> writes:

 > Today ISC disclosed two vulnerabilities affecting BIND as well
 > as a third vulnerability which affects *only* BIND Supported Preview
 > Edition (a special feature-preview version of BIND provided to
 > ISC support customers.)

 > Information about the vulnerabilities can be found in the ISC Knowledge
 > Base:

 >    CVE-2018-5743: Limiting simultaneous TCP clients is ineffective
 >    https://kb.isc.org/docs/cve-2018-5743

 >    CVE-2019-6467: An error in the nxdomain redirect feature can cause
 >    BIND to exit with an INSIST assertion failure in query.c
 >    https://kb.isc.org/docs/cve-2019-6467

 >    CVE-2019-6468: BIND Supported Preview Edition can exit with an
 >    assertion failure if nxdomain-redirect is used
 >    https://kb.isc.org/docs/cve-2019-6468

 > New releases of BIND have been issued to fix the vulnerabilities above.
 > They may be downloaded from the ISC website:  https://www.isc.org/downloads

 >    -  9.11.6-P1
 >    -  9.12.4-P1
 >    -  9.14.1

It is a bit unfortunate that these security fixes now use
isc_atomic_xadd() which are not available on all architectures:

.libs/client.o: In function `mark_tcp_active':
client.c:(.text+0xc7c): undefined reference to `isc_atomic_xadd'
client.c:(.text+0xca0): undefined reference to `isc_atomic_xadd'
.libs/client.o: In function `client_accept':
client.c:(.text+0x2210): undefined reference to `isc_atomic_xadd'
client.c:(.text+0x230c): undefined reference to `isc_atomic_xadd'
.libs/client.o: In function `exit_check':
client.c:(.text+0x2958): undefined reference to `isc_atomic_xadd'
.libs/client.o:client.c:(.text+0x5cb4): more undefined references to `isc_atomic_xadd' follow
collect2: error: ld returned 1 exit status

:/

-- 
Bye, Peter Korsgaard

Powered by blists - more mailing lists

Your e-mail address:

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.