CVE-2019-10082 – httpd: read-after-free in h2 connection shutdown
https://notcve.org/view.php?id=CVE-2019-10082
In Apache HTTP Server 2.4.18-2.4.39, using fuzzed network input, the http/2 session handling could be made to read memory after being freed, during connection shutdown. En Apache HTTP Server versiones 2.4.18 hasta 2.4.39, usando la entrada de red difusa, el manejo de la sesión http/2 podría ser hecha para leer la memoria después de ser liberada, durante el apagado de la conexión. A read-after-free vulnerability was discovered in Apache httpd, in mod_http2. A specially crafted http/2 client session could cause the server to read memory that was previously freed during connection shutdown, potentially leading to a crash. • https://httpd.apache.org/security/vulnerabilities_24.html https://lists.apache.org/thread.html/r03ee478b3dda3e381fd6189366fa7af97c980d2f602846eef935277d%40%3Ccvs.httpd.apache.org%3E https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E https://lists.apache.org/thread.html/r3c5c3104813c1c5508b55564b66546933079250a46ce50eee90b2e36%40%3Ccvs.httpd.apache.org%3E https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E https://lists.apache.org • CWE-416: Use After Free •
CVE-2019-9517 – Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service
https://notcve.org/view.php?id=CVE-2019-9517
Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer can send without constraint; however, they leave the TCP window closed so the peer cannot actually write (many of) the bytes on the wire. The attacker then sends a stream of requests for a large response object. Depending on how the servers queue the responses, this can consume excess memory, CPU, or both. Algunas implementaciones HTTP / 2 son vulnerables al almacenamiento en búfer de datos interal sin restricciones, lo que puede conducir a una denegación de servicio. • http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html http://www.openwall.com/lists/oss-security/2019/08/15/7 https://access.redhat.com/errata/RHSA-2019:2893 https://access.redhat.com/errata/RHSA-2019:2925 https://access.redhat.com/errata/RHSA-2019:2939 https://access.redhat.com/errata/RHSA-2019:2946 https:/ • CWE-400: Uncontrolled Resource Consumption CWE-770: Allocation of Resources Without Limits or Throttling •
CVE-2019-2751
https://notcve.org/view.php?id=CVE-2019-2751
Vulnerability in the Oracle HTTP Server component of Oracle Fusion Middleware (subcomponent: OHS Config MBeans). Supported versions that are affected are 12.1.3.0.0 and 12.2.1.3.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTPS to compromise Oracle HTTP Server. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle HTTP Server accessible data. CVSS 3.0 Base Score 5.9 (Confidentiality impacts). • http://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html •
CVE-2019-5443
https://notcve.org/view.php?id=CVE-2019-5443
A non-privileged user or program can put code and a config file in a known non-privileged path (under C:/usr/local/) that will make curl <= 7.65.1 automatically run the code (as an openssl "engine") on invocation. If that curl is invoked by a privileged user it can do anything it wants. Un usuario o programa no privilegiado puede colocar un código y un archivo de configuración en una ruta (path) no privilegiada conocida (bajo C:/usr/local/) que hará que curl anterior a versión 7.65.1 incluyéndola, ejecute automáticamente el código en la invocación (como un "engine" openssl). Si ese curl es invocado por un usuario privilegiado, este puede hacer lo que desee. • http://www.openwall.com/lists/oss-security/2019/06/24/1 http://www.securityfocus.com/bid/108881 https://curl.haxx.se/docs/CVE-2019-5443.html https://security.netapp.com/advisory/ntap-20191017-0002 https://www.oracle.com/security-alerts/cpuapr2020.html https://www.oracle.com/security-alerts/cpuoct2020.html https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html • CWE-94: Improper Control of Generation of Code ('Code Injection') CWE-427: Uncontrolled Search Path Element •
CVE-2018-20843 – expat: large number of colons in input makes parser consume high amount of resources, leading to DoS
https://notcve.org/view.php?id=CVE-2018-20843
In libexpat in Expat before 2.2.7, XML input including XML names that contain a large number of colons could make the XML parser consume a high amount of RAM and CPU resources while processing (enough to be usable for denial-of-service attacks). En libexpat en Expat anterior a versión 2.2.7, una entrada XML incluyendo nombres XML que contienen una gran cantidad de "dos puntos", podría hacer que el analizador XML consuma una gran cantidad de recursos de RAM y CPU durante el procesamiento (lo suficiente como para ser utilizables en ataques de denegación de servicio) . It was discovered that the "setElementTypePrefix()" function incorrectly extracted XML namespace prefixes. By tricking an application into processing a specially crafted XML file, an attacker could cause unusually high consumption of memory resources and possibly lead to a denial of service. • http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00039.html https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5226 https://github.com/libexpat/libexpat/blob/R_2_2_7/expat/Changes https://github.com/libexpat/libexpat/issues/186 https://github.com/libexpat/libexpat/pull/262 https://github.com/libexpat/libexpat/pull/262/commits/11f8838bf99ea0a6f0b76f9760c43704d00c4ff6 https://lists.debian.org/debian-lts-announce/2019/06/msg00028.html https://lists.fedoraproject.org/archives/ • CWE-400: Uncontrolled Resource Consumption CWE-611: Improper Restriction of XML External Entity Reference •