CVE-2020-6452 – chromium-browser: Heap buffer overflow in media
https://notcve.org/view.php?id=CVE-2020-6452
Heap buffer overflow in media in Google Chrome prior to 80.0.3987.162 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Un desbordamiento de búfer de la pila (heap) en media en Google Chrome versiones anteriores a 80.0.3987.162, permitió a un atacante remoto explotar potencialmente una corrupción de la pila (heap) por medio de una página HTML diseñada. • http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00024.html http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00031.html https://chromereleases.googleblog.com/2020/03/stable-channel-update-for-desktop_31.html https://crbug.com/1059764 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JMXT4OKBMCJSNSX7TZDBJNY6ORKFZRFO https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JQTV7EFWQKF6VJBCVH4PUQJLGO7ISLTN https://access.red • CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •
CVE-2020-11100 – haproxy: malformed HTTP/2 requests can lead to out-of-bounds writes
https://notcve.org/view.php?id=CVE-2020-11100
In hpack_dht_insert in hpack-tbl.c in the HPACK decoder in HAProxy 1.8 through 2.x before 2.1.4, a remote attacker can write arbitrary bytes around a certain location on the heap via a crafted HTTP/2 request, possibly causing remote code execution. En la función hpack_dht_insert en el archivo hpack-tbl.c en el decodificador HPACK en HAProxy versiones 1.8 hasta 2.x anteriores a 2.1.4, un atacante remoto puede escribir bytes arbitrarios alrededor de una determinada ubicación en la pila (heap) por medio de una petición HTTP/2 diseñada, causando posiblemente una ejecución de código remoto. A flaw was found in the way HAProxy processed certain HTTP/2 request packets. This flaw allows an attacker to send crafted HTTP/2 request packets, which cause memory corruption, leading to a crash or potential remote arbitrary code execution with the permissions of the user running HAProxy. The haproxy hpack implementation in hpack-tbl.c handles 0-length HTTP headers incorrectly. • http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00002.html http://packetstormsecurity.com/files/157323/haproxy-hpack-tbl.c-Out-Of-Bounds-Write.html http://www.haproxy.org https://bugzilla.redhat.com/show_bug.cgi?id=1819111 https://bugzilla.suse.com/show_bug.cgi?id=1168023 https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=5dfc5d5cd0d2128d77253ead3acf03a421ab5b88 https://lists.debian.org/debian-security-announce/2020/msg00052.html https://lists.fedoraproject.org/archives/list/packag • CWE-787: Out-of-bounds Write •
CVE-2020-8835 – Linux kernel bpf verifier vulnerability
https://notcve.org/view.php?id=CVE-2020-8835
In the Linux kernel 5.5.0 and newer, the bpf verifier (kernel/bpf/verifier.c) did not properly restrict the register bounds for 32-bit operations, leading to out-of-bounds reads and writes in kernel memory. The vulnerability also affects the Linux 5.4 stable series, starting with v5.4.7, as the introducing commit was backported to that branch. This vulnerability was fixed in 5.6.1, 5.5.14, and 5.4.29. (issue is aka ZDI-CAN-10780) En el kernel de Linux versiones 5.5.0 y más recientes, el verificador bpf (kernel/bpf/verifier.c) no restringió apropiadamente los límites de registro para operaciones de 32 bits, conllevando a lecturas y escrituras fuera de límites en la memoria del kernel. La vulnerabilidad también afecta a la serie estable de Linux versión 5.4, comenzando con la versión v5.4.7, ya que el commit de introducción fue respaldado en esa derivación. • https://github.com/zilong3033/CVE-2020-8835 https://github.com/digamma-ai/CVE-2020-8835-verification https://github.com/SplendidSky/CVE-2020-8835 https://github.com/Prabhashaka/Exploitation-CVE-2020-8835 https://github.com/johnatag/INF8602-CVE-2020-8835 http://www.openwall.com/lists/oss-security/2021/07/20/1 https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=f2d67fec0b43edce8c416101cdc52e71145b5fef https://git.kernel.org/pub/scm/linux/kernel/git/torvald • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •
CVE-2020-1747 – PyYAML: arbitrary command execution through python/object/new when FullLoader is used
https://notcve.org/view.php?id=CVE-2020-1747
A vulnerability was discovered in the PyYAML library in versions before 5.3.1, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. An attacker could use this flaw to execute arbitrary code on the system by abusing the python/object/new constructor. Se descubrió una vulnerabilidad en la biblioteca PyYAML versiones anteriores a 5.3.1, donde es susceptible a una ejecución de código arbitraria cuando procesa archivos YAML no seguros por medio del método full_load o con el cargador FullLoader. Las aplicaciones que usan la biblioteca para procesar entradas no seguras pueden ser vulnerables a este fallo. • http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00017.html http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00017.html https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1747 https://github.com/yaml/pyyaml/pull/386 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7PPAS6C4SZRDQLR7C22A5U3QOLXY33JX https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K5HEPD7LEVDPCITY5IMDYWXUMX37VFMY https://lists.fedoraproject • CWE-20: Improper Input Validation •
CVE-2020-9359 – okular: local binary execution via specially crafted PDF files
https://notcve.org/view.php?id=CVE-2020-9359
KDE Okular before 1.10.0 allows code execution via an action link in a PDF document. KDE Okular versiones anteriores a la versión 1.10.0, permite una ejecución de código por medio de un enlace de acción en un documento PDF. • https://invent.kde.org/kde/okular/-/commit/6a93a033b4f9248b3cd4d04689b8391df754e244 https://kde.org/info/security/advisory-20200312-1.txt https://lists.debian.org/debian-lts-announce/2020/03/msg00033.html https://lists.debian.org/debian-lts-announce/2021/12/msg00019.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2TY3O6UWX2XTP7PISPTZ6FYRDFU4UF66 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AW6GJ3AKGXOMTDHNZBMSXDTWNJJRFBDH https: • CWE-184: Incomplete List of Disallowed Inputs •