CVE-2019-6470

Name
CVE-2019-6470
Description
There had existed in one of the ISC BIND libraries a bug in a function that was used by dhcpd when operating in DHCPv6 mode. There was also a bug in dhcpd relating to the use of this function per its documentation, but the bug in the library function prevented this from causing any harm. All releases of dhcpd from ISC contain copies of this, and other, BIND libraries in combinations that have been tested prior to release and are known to not present issues like this. Some third-party packagers of ISC software have modified the dhcpd source, BIND source, or version matchup in ways that create the crash potential. Based on reports available to ISC, the crash probability is large and no analysis has been done on how, or even if, the probability can be manipulated by an attacker. Affects: Builds of dhcpd versions prior to version 4.4.1 when using BIND versions 9.11.2 or later, or BIND versions with specific bug fixes backported to them. ISC does not have access to comprehensive version lists for all repackagings of dhcpd that are vulnerable. In particular, builds from other vendors may also be affected. Operators are advised to consult their vendor documentation.
NVD Severity
medium
Other trackers
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
Mailing List https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00049.html
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:2060
Exploit https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=896122
Mailing List https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00048.html
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:3525

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* bind >= 9.11.2 <= None
cpe:2.3:a:isc:dhcpd:*:*:*:*:*:*:*:* dhcpd >= None < 4.4.1

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
bind 3.14-main 9.16.20-r1 None fixed
bind 3.13-main 9.16.20-r1 None fixed
bind 3.12-main 9.16.20-r1 None fixed
bind 3.11-main 9.16.20-r1 None fixed
bind edge-main 9.16.22-r4 None fixed