CVE-2021-3177 – python: Stack-based buffer overflow in PyCArg_repr in _ctypes/callproc.c
https://notcve.org/view.php?id=CVE-2021-3177
Python 3.x through 3.9.1 has a buffer overflow in PyCArg_repr in _ctypes/callproc.c, which may lead to remote code execution in certain Python applications that accept floating-point numbers as untrusted input, as demonstrated by a 1e300 argument to c_double.from_param. This occurs because sprintf is used unsafely. Python versiones 3.x hasta 3.9.1, presenta un desbordamiento de búfer en la función PyCArg_repr en el archivo _ctypes/callproc.c, que puede conllevar a una ejecución de código remota en determinadas aplicaciones de Python que aceptan números de punto flotante como entrada no confiable, como es demostrado por un argumento 1e300 para c_double.from_param. Esto ocurre porque sprintf es usado de manera no segura A flaw was found in python. A stack-based buffer overflow was discovered in the ctypes module provided within Python. • https://bugs.python.org/issue42938 https://github.com/python/cpython/pull/24239 https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E https://lists.debian.org/debian-lts-announce/2021/04/msg00005.html https://lists.debian.org/debian-lts-announce/2022/02/msg00013.html https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRHOCQYX3QLDGDQGTWQAUUT2G • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVE-2020-26422
https://notcve.org/view.php?id=CVE-2020-26422
Buffer overflow in QUIC dissector in Wireshark 3.4.0 to 3.4.1 allows denial of service via packet injection or crafted capture file Un desbordamiento del búfer en el disector QUIC en Wireshark versiones 3.4.0 hasta 3.4.1, permite una denegación de servicio por medio de una inyección de paquetes o un archivo de captura diseñado • https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26422.json https://gitlab.com/wireshark/wireshark/-/issues/17073 https://security.gentoo.org/glsa/202101-12 https://www.oracle.com/security-alerts/cpuApr2021.html https://www.wireshark.org/security/wnpa-sec-2020-20.html • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVE-2020-26418
https://notcve.org/view.php?id=CVE-2020-26418
Memory leak in Kafka protocol dissector in Wireshark 3.4.0 and 3.2.0 to 3.2.8 allows denial of service via packet injection or crafted capture file. Una filtración de memoria en el disector de protocolo Kafka en Wireshark versión 3.4.0 y versiones 3.2.0 hasta 3.2.8, permite una Denegación de Servicio por medio de una inyección de paquetes o archivo de captura diseñado • https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26418.json https://gitlab.com/wireshark/wireshark/-/issues/16739 https://lists.debian.org/debian-lts-announce/2021/02/msg00008.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M75HYXU36SP6GHIDPHNZGJKEO6TX4C4Y https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YHWDZPWQJMLK64VFDWJC5SEGPNH6Y72Z https://security.gentoo.org/glsa/202101-12 https://www.oracle.c • CWE-401: Missing Release of Memory after Effective Lifetime •
CVE-2020-26419
https://notcve.org/view.php?id=CVE-2020-26419
Memory leak in the dissection engine in Wireshark 3.4.0 allows denial of service via packet injection or crafted capture file. Una pérdida de memoria en el motor de disección de Wireshark versión 3.4.0, permite una Denegación de Servicio por medio de una inyección de paquetes o un archivo de captura diseñado • https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26419.json https://gitlab.com/wireshark/wireshark/-/issues/17032 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M75HYXU36SP6GHIDPHNZGJKEO6TX4C4Y https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YHWDZPWQJMLK64VFDWJC5SEGPNH6Y72Z https://security.gentoo.org/glsa/202101-12 https://www.oracle.com/security-alerts/cpuApr2021.html https://www.wireshark.org/security/w • CWE-401: Missing Release of Memory after Effective Lifetime •
CVE-2020-26420
https://notcve.org/view.php?id=CVE-2020-26420
Memory leak in RTPS protocol dissector in Wireshark 3.4.0 and 3.2.0 to 3.2.8 allows denial of service via packet injection or crafted capture file. Una filtración de memoria en el disector del protocolo RTPS en Wireshark versión 3.4.0 y versiones 3.2.0 hasta 3.2.8, permite una Denegación de Servicio por medio de una inyección de paquetes o archivo de captura diseñado • https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26420.json https://gitlab.com/wireshark/wireshark/-/issues/16994 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M75HYXU36SP6GHIDPHNZGJKEO6TX4C4Y https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YHWDZPWQJMLK64VFDWJC5SEGPNH6Y72Z https://security.gentoo.org/glsa/202101-12 https://www.oracle.com/security-alerts/cpuApr2021.html https://www.wireshark.org/security/w • CWE-401: Missing Release of Memory after Effective Lifetime •