
CVE-2021-3733 – python: urllib: Regular expression DoS in AbstractBasicAuthHandler
https://notcve.org/view.php?id=CVE-2021-3733
17 Sep 2021 — There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the server to the client. The greatest threat that this flaw poses is to application availability. Se presenta un fallo en la clase AbstractBasicAuthHandler de urllib. Un atacante que controle un servidor H... • https://bugs.python.org/issue43075 • CWE-400: Uncontrolled Resource Consumption •

CVE-2021-3737 – python: urllib: HTTP client possible infinite loop on a 100 Continue response
https://notcve.org/view.php?id=CVE-2021-3737
17 Sep 2021 — A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop, consuming CPU time. The highest threat from this vulnerability is to system availability. Se ha encontrado un fallo en python. Una respuesta HTTP manejada inapropiadamente en el código del cliente HTTP de python puede permitir a un atacante remoto, que controle el servidor HTTP, hacer que el script del c... • https://bugs.python.org/issue44022 • CWE-400: Uncontrolled Resource Consumption CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •

CVE-2021-41079 – Apache Tomcat DoS with unexpected TLS packet
https://notcve.org/view.php?id=CVE-2021-41079
16 Sep 2021 — Apache Tomcat 8.5.0 to 8.5.63, 9.0.0-M1 to 9.0.43 and 10.0.0-M1 to 10.0.2 did not properly validate incoming TLS packets. When Tomcat was configured to use NIO+OpenSSL or NIO2+OpenSSL for TLS, a specially crafted packet could be used to trigger an infinite loop resulting in a denial of service. Apache Tomcat versiones 8.5.0 hasta 8.5.63, versiones 9.0.0-M1 hasta 9.0.43 y versiones 10.0.0-M1 hasta 10.0.2, no comprueban apropiadamente los paquetes TLS entrantes. Cuando Tomcat estaba configurado para usar NIO+... • https://lists.apache.org/thread.html/r6b6b674e3f168dd010e67dbe6848b866e2acf26371452fdae313b98a%40%3Cusers.tomcat.apache.org%3E • CWE-20: Improper Input Validation CWE-400: Uncontrolled Resource Consumption CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •

CVE-2021-37714 – Crafted input may cause the jsoup HTML and XML parser to get stuck, timeout, or throw unchecked exceptions
https://notcve.org/view.php?id=CVE-2021-37714
18 Aug 2021 — jsoup is a Java library for working with HTML. Those using jsoup versions prior to 1.14.2 to parse untrusted HTML or XML may be vulnerable to DOS attacks. If the parser is run on user supplied input, an attacker may supply content that causes the parser to get stuck (loop indefinitely until cancelled), to complete more slowly than usual, or to throw an unexpected exception. This effect may support a denial of service attack. The issue is patched in version 1.14.2. • https://github.com/jhy/jsoup/security/advisories/GHSA-m72m-mhq2-9p6c • CWE-248: Uncaught Exception CWE-400: Uncontrolled Resource Consumption CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •

CVE-2021-38199 – Ubuntu Security Notice USN-5091-2
https://notcve.org/view.php?id=CVE-2021-38199
08 Aug 2021 — fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service (hanging of mounts) by arranging for those servers to be unreachable during trunking detection. El archivo fs/nfs/nfs4client.c en el kernel de Linux versiones anteriores a 5.13.4, presenta un ordenamiento incorrecto de la configuración de la conexión, que permite a operadores de servidores NFSv4 remotos causar una denegación de servicio (c... • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 •

CVE-2021-38201 – kernel: slab-out-of-bounds access in xdr_set_page_base() in net/sunrpc/xdr.c
https://notcve.org/view.php?id=CVE-2021-38201
08 Aug 2021 — net/sunrpc/xdr.c in the Linux kernel before 5.13.4 allows remote attackers to cause a denial of service (xdr_set_page_base slab-out-of-bounds access) by performing many NFS 4.2 READ_PLUS operations. El archivo net/sunrpc/xdr.c en el kernel de Linux versiones anteriores a 5.13.4, permite a atacantes remotos causar una denegación de servicio (acceso fuera de los límites de xdr_set_page_base) al llevar a cabo muchas operaciones NFS 4.2 READ_PLUS A flaw was found in the Linux kernel that allows remote attackers... • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVE-2021-38202 – Ubuntu Security Notice USN-5096-1
https://notcve.org/view.php?id=CVE-2021-38202
08 Aug 2021 — fs/nfsd/trace.h in the Linux kernel before 5.13.4 might allow remote attackers to cause a denial of service (out-of-bounds read in strlen) by sending NFS traffic when the trace event framework is being used for nfsd. El archivo fs/nfsd/trace.h en el kernel de Linux versiones anteriores a 5.13.4, podría permitir a atacantes remotos causar una denegación de servicio (lectura fuera de los límites en strlen) mediante el envío de tráfico NFS cuando el marco de eventos de rastreo se está usando para nfsd Valentin... • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 • CWE-125: Out-of-bounds Read •

CVE-2021-38203 – Ubuntu Security Notice USN-5096-1
https://notcve.org/view.php?id=CVE-2021-38203
08 Aug 2021 — btrfs in the Linux kernel before 5.13.4 allows attackers to cause a denial of service (deadlock) via processes that trigger allocation of new system chunks during times when there is a shortage of free space in the system space_info. btrfs en el kernel de Linux versiones anteriores a 5.13.4, permite a atacantes causar una denegación de servicio (bloqueo) por medio de procesos que desencadenan la asignación de nuevos trozos del sistema durante los momentos en que hay una escasez de espacio libre en el space_... • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 • CWE-667: Improper Locking •

CVE-2021-38160 – Ubuntu Security Notice USN-5091-2
https://notcve.org/view.php?id=CVE-2021-38160
07 Aug 2021 — In drivers/char/virtio_console.c in the Linux kernel before 5.13.4, data corruption or loss can be triggered by an untrusted device that supplies a buf->len value exceeding the buffer size. NOTE: the vendor indicates that the cited data corruption is not a vulnerability in any existing use case; the length validation was added solely for robustness in the face of anomalous host OS behavior ** EN DISPUTA ** En el archivo drivers/char/virtio_console.c en el kernel de Linux versiones anteriores a 5.13.4, la co... • https://access.redhat.com/security/cve/cve-2021-38160 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •

CVE-2021-28169 – jetty: requests to the ConcatServlet and WelcomeFilter are able to access protected resources within the WEB-INF directory
https://notcve.org/view.php?id=CVE-2021-28169
09 Jun 2021 — For Eclipse Jetty versions <= 9.4.40, <= 10.0.2, <= 11.0.2, it is possible for requests to the ConcatServlet with a doubly encoded path to access protected resources within the WEB-INF directory. For example a request to `/concat?/%2557EB-INF/web.xml` can retrieve the web.xml file. This can reveal sensitive information regarding the implementation of a web application. Para Eclipse Jetty versiones anteriores a 9.4.40 incluyéndola, versiones anteriores a 10.0.2 incluyéndola, versiones anteriores a 11.0.2 inc... • https://github.com/eclipse/jetty.project/security/advisories/GHSA-gwcr-j4wh-j3cq • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •