CVSS: 6.8EPSS: 0%CPEs: 35EXPL: 1CVE-2021-3672 – c-ares: Missing input validation of host names may lead to domain hijacking
https://notcve.org/view.php?id=CVE-2021-3672
A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong hostnames which might potentially lead to Domain Hijacking. The highest threat from this vulnerability is to confidentiality and integrity as well as system availability. Se ha encontrado un fallo en la biblioteca c-ares, en la que una falta de comprobación de la comprobación de entrada de los nombres de host devueltos por los DNS (Servidores de Nombres de Dominio) puede conllevar a una salida de nombres de host erróneos, que podría conllevar potencialmente a un Secuestro de Dominios. La mayor amenaza de esta vulnerabilidad es para la confidencialidad e integridad, así como para la disponibilidad del sistema • https://bugzilla.redhat.com/show_bug.cgi?id=1988342 https://c-ares.haxx.se/adv_20210810.html https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://security.gentoo.org/glsa/202401-02 https://www.oracle.com/security-alerts/cpujul2022.html https://access.redhat.com/security/cve/CVE-2021-3672 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •
CVSS: 7.5EPSS: 0%CPEs: 15EXPL: 2CVE-2020-8277 – c-ares: ares_parse_{a,aaaa}_reply() insufficient naddrttls validation DoS
https://notcve.org/view.php?id=CVE-2020-8277
A Node.js application that allows an attacker to trigger a DNS request for a host of their choice could trigger a Denial of Service in versions < 15.2.1, < 14.15.1, and < 12.19.1 by getting the application to resolve a DNS record with a larger number of responses. This is fixed in 15.2.1, 14.15.1, and 12.19.1. Una aplicación Node.js que permite a un atacante desencadenar una petición DNS para un host de su elección podría desencadenar una Denegación de servicio en las versiones anteriores a 15.2.1, versiones anteriores a 14.15.1 y versiones anteriores a 12.19.1 al conseguir que la aplicación resuelva un Registro DNS con un mayor número de respuestas. Esto es corregido en versiones 15.2.1, 14.15.1 y 12.19.1 • https://github.com/masahiro331/CVE-2020-8277 https://github.com/AndrewIjano/CVE-2020-8277 https://hackerone.com/reports/1033107 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A7WH7W46OZSEUHWBHD7TCH3LRFY52V6Z https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEJBY3RJB3XWUOJFGZM5E3EMQ7MFM3UT https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EEIV4CH6KNVZK63Y6EKVN2XDW7IHSJBJ https://lists.fedoraproject.org/archives&# • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-400: Uncontrolled Resource Consumption •
CVSS: 7.5EPSS: 0%CPEs: 14EXPL: 0CVE-2017-1000381 – c-ares: NAPTR parser out of bounds access
https://notcve.org/view.php?id=CVE-2017-1000381
The c-ares function `ares_parse_naptr_reply()`, which is used for parsing NAPTR responses, could be triggered to read memory outside of the given input buffer if the passed in DNS response packet was crafted in a particular way. La función "ares_parse_naptr_reply()" de c-ares, que es usada para analizar las respuestas NAPTR, podría ser activada para leer la memoria fuera del búfer de entrada dado si el pasado en el paquete de respuesta DNS fue creado de una manera particular. • http://www.securityfocus.com/bid/99148 https://c-ares.haxx.se/0616.patch https://c-ares.haxx.se/adv_20170620.html https://access.redhat.com/security/cve/CVE-2017-1000381 https://bugzilla.redhat.com/show_bug.cgi?id=1463132 • CWE-125: Out-of-bounds Read CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 9.8EPSS: 4%CPEs: 32EXPL: 0CVE-2016-5180 – c-ares: Single byte out of buffer write
https://notcve.org/view.php?id=CVE-2016-5180
Heap-based buffer overflow in the ares_create_query function in c-ares 1.x before 1.12.0 allows remote attackers to cause a denial of service (out-of-bounds write) or possibly execute arbitrary code via a hostname with an escaped trailing dot. Desbordamiento de búfer basado en memoria dinámica en la función ares_create_query en c-ares 1.x en versiones anteriores a 1.12.0 permite a atacantes remotos provocar una denegación de servicio (escritura fuera de límites) o posiblemente ejecutar código arbitrario a través de un nombre de host con puntos finales de fuga. A vulnerability was found in c-ares. A hostname with an escaped trailing dot (such as "hello\.") would have its size calculated incorrectly, leading to a single byte written beyond the end of a buffer on the heap. An attacker able to provide such a hostname to an application using c-ares, could potentially cause that application to crash. • http://rhn.redhat.com/errata/RHSA-2017-0002.html http://www.debian.org/security/2016/dsa-3682 http://www.securityfocus.com/bid/93243 http://www.ubuntu.com/usn/USN-3143-1 https://c-ares.haxx.se/CVE-2016-5180.patch https://c-ares.haxx.se/adv_20160929.html https://googlechromereleases.blogspot.in/2016/09/stable-channel-updates-for-chrome-os.html https://security.gentoo.org/glsa/201701-28 https://source.android.com/security/bulletin/2017-01-01.html https://access&# • CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •