CVE-2020-6831 – usrsctp: Buffer overflow in AUTH chunk input validation
https://notcve.org/view.php?id=CVE-2020-6831
A buffer overflow could occur when parsing and validating SCTP chunks in WebRTC. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0. Podría presentarse un desbordamiento del búfer cuando se analizan y comprueban fragmentos SCTP en WebRTC. Esto podría haber provocado una corrupción en la memoria y un bloqueo potencialmente explotable. • http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00000.html http://packetstormsecurity.com/files/158480/usrsctp-Stack-Buffer-Overflow.html https://bugzilla.mozilla.org/show_bug.cgi?id=1632241 https://security.gentoo.org/glsa/202005-03 https://security.gentoo.org/glsa/202005-04 https://usn.ubuntu.com/4373-1 https://www.debian.org/security/2020/dsa-4714 https://www.mozilla.org/security/advisories/mfsa2020-16 https://www.mozilla.org/security/advisories/mfsa2020-17 https: • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •
CVE-2020-12656
https://notcve.org/view.php?id=CVE-2020-12656
gss_mech_free in net/sunrpc/auth_gss/gss_mech_switch.c in the rpcsec_gss_krb5 implementation in the Linux kernel through 5.6.10 lacks certain domain_release calls, leading to a memory leak. Note: This was disputed with the assertion that the issue does not grant any access not already available. It is a problem that on unloading a specific kernel module some memory is leaked, but loading kernel modules is a privileged operation. A user could also write a kernel module to consume any amount of memory they like and load that replicating the effect of this bug ** EN DISPUTA ** En la función gss_mech_free en el archivo net/sunrpc/auth_gss/gss_mech_switch.c en la implementación rpcsec_gss_krb5 en el kernel de Linux versiones hasta 5.6.10 carece de ciertas llamadas domain_release, onllevando a una perdida de memoria. Nota: Esto se discutió con la afirmación de que el tema no otorga ningún acceso no disponible. • http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html https://bugzilla.kernel.org/show_bug.cgi?id=206651 https://usn.ubuntu.com/4483-1 https://usn.ubuntu.com/4485-1 • CWE-401: Missing Release of Memory after Effective Lifetime •
CVE-2020-10683 – dom4j: XML External Entity vulnerability in default SAX parser
https://notcve.org/view.php?id=CVE-2020-10683
dom4j before 2.0.3 and 2.1.x before 2.1.3 allows external DTDs and External Entities by default, which might enable XXE attacks. However, there is popular external documentation from OWASP showing how to enable the safe, non-default behavior in any application that uses dom4j. dom4j versiones anteriores a 2.0.3 y versiones 2.1.x anteriores a 2.1.3, permite DTDs y External Entities por defecto, lo que podría permitir ataques de tipo XXE. Sin embargo, existe una documentación externa popular de OWASP que muestra cómo habilitar el comportamiento seguro no predeterminado en cualquier aplicación que use dom4j. • http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00061.html https://bugzilla.redhat.com/show_bug.cgi?id=1694235 https://cheatsheetseries.owasp.org/cheatsheets/XML_External_Entity_Prevention_Cheat_Sheet.html https://github.com/dom4j/dom4j/commit/a8228522a99a02146106672a34c104adbda5c658 https://github.com/dom4j/dom4j/commits/version-2.0.3 https://github.com/dom4j/dom4j/issues/87 https://github.com/dom4j/dom4j/releases/tag/version-2.1.3 https://lists.apache.org/thread.html/r51f3f9801058 • CWE-611: Improper Restriction of XML External Entity Reference •
CVE-2020-11652 – SaltStack Salt Path Traversal Vulnerability
https://notcve.org/view.php?id=CVE-2020-11652
An issue was discovered in SaltStack Salt before 2019.2.4 and 3000 before 3000.2. The salt-master process ClearFuncs class allows access to some methods that improperly sanitize paths. These methods allow arbitrary directory access to authenticated users. Se descubrió un problema en SaltStack Salt versiones anteriores a la versión 2019.2.4 y versiones 3000 anteriores a 3000.2. La clase ClearFuncs del proceso Salt-master permite acceder a algunos métodos que sanean inapropiadamente las rutas. • https://www.exploit-db.com/exploits/48421 https://github.com/ssrsec/CVE-2020-11651-CVE-2020-11652-EXP https://github.com/Al1ex/CVE-2020-11652 https://github.com/limon768/CVE-2020-11652-POC https://github.com/fanjq99/CVE-2020-11652 https://github.com/appcheck-ng/salt-rce-scanner-CVE-2020-11651-CVE-2020-11652 http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00047.html http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00070.html http://packetstormsecurit • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') •
CVE-2020-11651 – SaltStack Salt Authentication Bypass Vulnerability
https://notcve.org/view.php?id=CVE-2020-11651
An issue was discovered in SaltStack Salt before 2019.2.4 and 3000 before 3000.2. The salt-master process ClearFuncs class does not properly validate method calls. This allows a remote user to access some methods without authentication. These methods can be used to retrieve user tokens from the salt master and/or run arbitrary commands on salt minions. Se ha descubierto un fallo de salto de archivo en todas las versiones de ansible-engine 2.9.x anteriores a la versión 2.9.7, cuando se ejecuta una instalación de una colección ansible-galaxy. • https://www.exploit-db.com/exploits/48421 https://github.com/jasperla/CVE-2020-11651-poc https://github.com/ssrsec/CVE-2020-11651-CVE-2020-11652-EXP https://github.com/0xc0d/CVE-2020-11651 https://github.com/kevthehermit/CVE-2020-11651 https://github.com/RakhithJK/CVE-2020-11651 https://github.com/appcheck-ng/salt-rce-scanner-CVE-2020-11651-CVE-2020-11652 https://github.com/hardsoftsecurity/CVE-2020-11651-PoC http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00 •