CVE-2020-14378
https://notcve.org/view.php?id=CVE-2020-14378
An integer underflow in dpdk versions before 18.11.10 and before 19.11.5 in the `move_desc` function can lead to large amounts of CPU cycles being eaten up in a long running loop. An attacker could cause `move_desc` to get stuck in a 4,294,967,295-count iteration loop. Depending on how `vhost_crypto` is being used this could prevent other VMs or network tasks from being serviced by the busy DPDK lcore for an extended period. Un subdesbordamiento de enteros en dpdk versiones anteriores a 18.11.10 y anteriores a 19.11.5 en la función "move_desc" puede conllevar a que sean consumidos grandes cantidades de ciclos de CPU en un bucle de larga ejecución. Un atacante podría causar que "move_desc" se atasque en un bucle de iteración de 4.294.967.295 conteos. • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00006.html http://www.openwall.com/lists/oss-security/2021/01/04/1 http://www.openwall.com/lists/oss-security/2021/01/04/2 http://www.openwall.com/lists/oss-security/2021/01/04/5 https://bugzilla.redhat.com/show_bug.cgi?id=1879473 https://usn.ubuntu.com/4550-1 https://www.openwall.com/lists/oss-security/2020/09/28/3 • CWE-191: Integer Underflow (Wrap or Wraparound) •
CVE-2020-14374
https://notcve.org/view.php?id=CVE-2020-14374
A flaw was found in dpdk in versions before 18.11.10 and before 19.11.5. A flawed bounds checking in the copy_data function leads to a buffer overflow allowing an attacker in a virtual machine to write arbitrary data to any address in the vhost_crypto application. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo en dpdk en versiones anteriores a 18.11.10 y anteriores a 19.11.5. Una comprobación de límites fallida en la función copy_data conlleva a un desbordamiento del búfer que permite a un atacante en una máquina virtual escribir datos arbitrarios en cualquier dirección en la aplicación vhost_crypto. • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00004.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00006.html http://www.openwall.com/lists/oss-security/2021/01/04/1 http://www.openwall.com/lists/oss-security/2021/01/04/2 http://www.openwall.com/lists/oss-security/2021/01/04/5 https://bugzilla.redhat.com/show_bug.cgi?id=1879466 https://www.openwall.com/lists/oss-security/2020/09/28/3 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVE-2020-26116 – python: CRLF injection via HTTP request method in httplib/http.client
https://notcve.org/view.php?id=CVE-2020-26116
http.client in Python 3.x before 3.5.10, 3.6.x before 3.6.12, 3.7.x before 3.7.9, and 3.8.x before 3.8.5 allows CRLF injection if the attacker controls the HTTP request method, as demonstrated by inserting CR and LF control characters in the first argument of HTTPConnection.request. http.client en Python 3.x antes de la versión 3.5.10, 3.6.x antes de la versión 3.6.12, 3.7.x antes de la versión 3.7.9, y 3.8.x antes de la versión 3.8.5 permite la inyección de CRLF si el atacante controla el método de petición HTTP, como se demuestra insertando caracteres de control CR y LF en el primer argumento de HTTPConnection.request A flaw was found in Python. The built-in modules httplib and http.client (included in Python 2 and Python 3, respectively) do not properly validate CRLF sequences in the HTTP request method, potentially allowing manipulation to the request by injecting additional HTTP headers. The highest threat from this vulnerability is to confidentiality and integrity. • http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00027.html https://bugs.python.org/issue39603 https://lists.debian.org/debian-lts-announce/2020/11/msg00032.html https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BW4GCLQISJCOEGQNIMVUZDQMIY6RR6CC https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HDQ2THWU4GPV4Y5H5WW5PFMSWXL2CRFD https://lists.fedoraproject.org/ • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting') •
CVE-2020-16121 – PackageKit error messages leak presence and mimetype of files to unprivileged users
https://notcve.org/view.php?id=CVE-2020-16121
PackageKit provided detailed error messages to unprivileged callers that exposed information about file presence and mimetype of files that the user would be unable to determine on its own. PackageKit proporcionó mensajes de error detallados a llamadores no privilegiados que exponían información sobre la presencia de archivos y mimetype de archivos que el usuario no podría ser capaz de determinar por sí solo • https://bugs.launchpad.net/ubuntu/+source/packagekit/+bug/1888887 https://www.eyecontrol.nl/blog/the-story-of-3-cves-in-ubuntu-desktop.html • CWE-209: Generation of Error Message Containing Sensitive Information •
CVE-2020-16122 – Packagekit's apt backend lets user install untrusted local packages
https://notcve.org/view.php?id=CVE-2020-16122
PackageKit's apt backend mistakenly treated all local debs as trusted. The apt security model is based on repository trust and not on the contents of individual files. On sites with configured PolicyKit rules this may allow users to install malicious packages. El backend apt de PackageKit trató erróneamente a todas las debs locales como confiables. El modelo de seguridad de apt se basa en la confianza del repositorio y no en el contenido de archivos individuales. • https://bugs.launchpad.net/ubuntu/+source/packagekit/+bug/1882098 • CWE-269: Improper Privilege Management CWE-345: Insufficient Verification of Data Authenticity •