CVE-2020-11993 – httpd: mod_http2 concurrent pool usage
https://notcve.org/view.php?id=CVE-2020-11993
Apache HTTP Server versions 2.4.20 to 2.4.43 When trace/debug was enabled for the HTTP/2 module and on certain traffic edge patterns, logging statements were made on the wrong connection, causing concurrent use of memory pools. Configuring the LogLevel of mod_http2 above "info" will mitigate this vulnerability for unpatched servers. Apache HTTP Server versiones 2.4.20 hasta 2.4.43, cuando trace/debug fue habilitado para el módulo HTTP/2 y en determinados patrones de tráfico de borde, se hicieron declaraciones de registro en la conexión errónea, causando un uso concurrente de grupos de memoria. Configurando el LogLevel de mod_http2 sobre "info" mitigará esta vulnerabilidad para los servidores sin parches A flaw was found in Apache httpd in versions 2.4.20 to 2.4.43. Logging using the wrong pool by mod_http2 at debug/trace log level may lead to potential crashes and denial of service. • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00068.html http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00071.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00081.html http://packetstormsecurity.com/files/160393/Apache-2-HTTP2-Module-Concurrent-Pool-Usage.html https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2020-11993 https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E https://lists • CWE-400: Uncontrolled Resource Consumption CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') •
CVE-2020-11984 – httpd: mod_proxy_uwsgi buffer overflow
https://notcve.org/view.php?id=CVE-2020-11984
Apache HTTP server 2.4.32 to 2.4.44 mod_proxy_uwsgi info disclosure and possible RCE Apache HTTP server versiones 2.4.32 hasta 2.4.44, la función mod_proxy_uwsgi divulga información y posible RCE A flaw was found in Apache httpd in versions 2.4.32 to 2.4.46. The uwsgi protocol does not serialize more than 16K of HTTP header leading to resource exhaustion and denial of service. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00068.html http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00071.html http://packetstormsecurity.com/files/159009/Apache2-mod_proxy_uwsgi-Incorrect-Request-Handling.html http://www.openwall.com/lists/oss-security/2020/08/08/1 http://www.openwall.com/lists/oss-security/2020/08/08/10 http://www.openwall.com/lists/oss-security/2020/08/08/8 http://www.openwall.com/lists/oss-security/2020/08/08/9 http • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-400: Uncontrolled Resource Consumption •
CVE-2020-9490 – httpd: Push diary crash on specifically crafted HTTP/2 header
https://notcve.org/view.php?id=CVE-2020-9490
Apache HTTP Server versions 2.4.20 to 2.4.43. A specially crafted value for the 'Cache-Digest' header in a HTTP/2 request would result in a crash when the server actually tries to HTTP/2 PUSH a resource afterwards. Configuring the HTTP/2 feature via "H2Push off" will mitigate this vulnerability for unpatched servers. Apache HTTP Server versiones 2.4.20 hasta 2.4.43.. Un valor especialmente diseñado para el encabezado "Cache-Digest" en una petición HTTP/2 resultaría en un bloqueo cuando el servidor realmente intenta un PUSH HTTP/2 un recurso mas tarde. • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00068.html http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00071.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00081.html http://packetstormsecurity.com/files/160392/Apache-2.4.43-mod_http2-Memory-Corruption.html https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2020-9490 https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E https://lists& • CWE-400: Uncontrolled Resource Consumption CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') •
CVE-2019-20907 – python: infinite loop in the tarfile module via crafted TAR archive
https://notcve.org/view.php?id=CVE-2019-20907
In Lib/tarfile.py in Python through 3.8.3, an attacker is able to craft a TAR archive leading to an infinite loop when opened by tarfile.open, because _proc_pax lacks header validation. En la biblioteca Lib/tarfile.py en Python versiones hasta 3.8.3, un atacante puede diseñar un archivo TAR conllevando a un bucle infinito cuando se abrió mediante tarfile.open, porque la función _proc_pax carece de comprobación de encabezado A flaw was found in python. In Lib/tarfile.py an attacker is able to craft a TAR archive leading to an infinite loop when opened by tarfile.open, because _proc_pax lacks header validation. • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00051.html http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00052.html http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00053.html http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00056.html https://bugs.python.org/issue39017 https://github.com/python/cpython/pull/21454 https://lists.debian.org/debian-lts-announce/2020/08/msg00034.html https://lists.debian.org/debian-lts-announce/2020/ • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
CVE-2019-20892
https://notcve.org/view.php?id=CVE-2019-20892
net-snmp before 5.8.1.pre1 has a double free in usm_free_usmStateReference in snmplib/snmpusm.c via an SNMPv3 GetBulk request. NOTE: this affects net-snmp packages shipped to end users by multiple Linux distributions, but might not affect an upstream release. net-snmp versiones anteriores a 5.8.1.pre1 presenta una doble liberación en la función usm_free_usmStateReference en el archivo snmplib/snmpusm.c por medio de una petición SNMPv3 GetBulk. NOTA: esto afecta a los paquetes net-snmp enviados a los usuarios finales por múltiples distribuciones de Linux, pero podría no afectar una versión anterior • http://www.openwall.com/lists/oss-security/2020/06/25/4 https://bugs.launchpad.net/ubuntu/+source/net-snmp/+bug/1877027 https://bugzilla.redhat.com/show_bug.cgi?id=1663027 https://github.com/net-snmp/net-snmp/commit/5f881d3bf24599b90d67a45cae7a3eb099cd71c9 https://security.gentoo.org/glsa/202008-12 https://sourceforge.net/p/net-snmp/bugs/2923 https://usn.ubuntu.com/4410-1 https://www.oracle.com/security-alerts/cpujan2021.html • CWE-415: Double Free •