CVE-2018-5744 – A specially crafted packet can cause named to leak memory
https://notcve.org/view.php?id=CVE-2018-5744
A failure to free memory can occur when processing messages having a specific combination of EDNS options. Versions affected are: BIND 9.10.7 -> 9.10.8-P1, 9.11.3 -> 9.11.5-P1, 9.12.0 -> 9.12.3-P1, and versions 9.10.7-S1 -> 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -> 9.13.6 of the 9.13 development branch are also affected. Se puede presentar un fallo al liberar memoria cuando se procesan mensajes que tienen una combinación específica de opciones EDNS. Las versiones afectadas son: BIND 9.10.7 hasta 9.10.8-P1, 9.11.3 hasta 9.11.5-P1, 9.12.0 hasta 9.12.3-P1, y las versiones 9.10.7-S1 hasta 9.11.5-S3 de BIND 9 Supported Preview Edition. • https://kb.isc.org/docs/cve-2018-5744 • CWE-772: Missing Release of Resource after Effective Lifetime •
CVE-2018-5742 – An oversight while backporting a feature leads to an assertion failure in buffer.c:420
https://notcve.org/view.php?id=CVE-2018-5742
While backporting a feature for a newer branch of BIND9, RedHat introduced a path leading to an assertion failure in buffer.c:420. Affects RedHat versions bind-9.9.4-65.el7 -> bind-9.9.4-72.el7. No ISC releases are affected. Other packages from other distributions who made the same error may also be affected. Mientras se ejecuta un backport de una característica para una nueva rama de BIND9, RedHat introdujo una ruta que conlleva a un fallo de aserción en buffer.c:420. • https://access.redhat.com/security/cve/cve-2018-5742 https://access.redhat.com/security/cve/CVE-2018-5742 https://bugzilla.redhat.com/show_bug.cgi?id=1655844 • CWE-400: Uncontrolled Resource Consumption CWE-617: Reachable Assertion •
CVE-2018-5741 – Update policies krb5-subdomain and ms-subdomain do not enforce controls promised in their documentation
https://notcve.org/view.php?id=CVE-2018-5741
To provide fine-grained controls over the ability to use Dynamic DNS (DDNS) to update records in a zone, BIND 9 provides a feature called update-policy. Various rules can be configured to limit the types of updates that can be performed by a client, depending on the key used when sending the update request. Unfortunately, some rule types were not initially documented, and when documentation for them was added to the Administrator Reference Manual (ARM) in change #3112, the language that was added to the ARM at that time incorrectly described the behavior of two rule types, krb5-subdomain and ms-subdomain. This incorrect documentation could mislead operators into believing that policies they had configured were more restrictive than they actually were. This affects BIND versions prior to BIND 9.11.5 and BIND 9.12.3. • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html http://www.securityfocus.com/bid/105379 http://www.securitytracker.com/id/1041674 https://access.redhat.com/errata/RHSA-2019:2057 https://kb.isc.org/docs/cve-2018-5741 https://security.gentoo.org/glsa/201903-13 https://security.netapp.com/advisory/ntap-20190830-0001 https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&doc • CWE-284: Improper Access Control CWE-863: Incorrect Authorization •
CVE-2018-5734 – A malformed request can trigger an assertion failure in badcache.c
https://notcve.org/view.php?id=CVE-2018-5734
While handling a particular type of malformed packet BIND erroneously selects a SERVFAIL rcode instead of a FORMERR rcode. If the receiving view has the SERVFAIL cache feature enabled, this can trigger an assertion failure in badcache.c when the request doesn't contain all of the expected information. Affects BIND 9.10.5-S1 to 9.10.5-S4, 9.10.6-S1, 9.10.6-S2. Al gestionar un tipo concreto de paquete mal formado, BIND selecciona erróneamente un rcode SERVFAIL en lugar de un rcode FORMERR. Si la vista que se está recibiendo tiene la característica de caché SERVFAIL habilitada, esto puede desencadenar un fallo de aserción en badcache.c cuando la petición no contiene toda la información esperada. • http://www.securityfocus.com/bid/103189 http://www.securitytracker.com/id/1040438 https://kb.isc.org/docs/aa-01562 https://security.netapp.com/advisory/ntap-20180926-0005 • CWE-617: Reachable Assertion •
CVE-2018-5737 – BIND 9.12's serve-stale implementation can cause an assertion failure in rbtdb.c or other undesirable behavior, even if serve-stale is not enabled.
https://notcve.org/view.php?id=CVE-2018-5737
A problem with the implementation of the new serve-stale feature in BIND 9.12 can lead to an assertion failure in rbtdb.c, even when stale-answer-enable is off. Additionally, problematic interaction between the serve-stale feature and NSEC aggressive negative caching can in some cases cause undesirable behavior from named, such as a recursion loop or excessive logging. Deliberate exploitation of this condition could cause operational problems depending on the particular manifestation -- either degradation or denial of service. Affects BIND 9.12.0 and 9.12.1. Un problema con la implementación de la nueva característica "serve-stale" en BIND 9.12 puede conducir a un fallo de aserción en rbtdb.c, incluso cuando stale-answer-enable está desactivado. • http://www.securityfocus.com/bid/104236 http://www.securitytracker.com/id/1040942 https://kb.isc.org/docs/aa-01606 https://security.netapp.com/advisory/ntap-20180926-0004 • CWE-617: Reachable Assertion •