CVE-2020-11736 – file-roller: directory traversal via directory symlink pointing outside of the target directory
https://notcve.org/view.php?id=CVE-2020-11736
fr-archive-libarchive.c in GNOME file-roller through 3.36.1 allows Directory Traversal during extraction because it lacks a check of whether a file's parent is a symlink to a directory outside of the intended extraction location. El archivo fr-archive-libarchive.c en GNOME file-roller versiones hasta 3.36.1, permite un Salto del Directorio durante la extracción porque carece de una comprobación de si el padre de un archivo es un enlace simbólico en un directorio fuera de la ubicación de extracción prevista. • https://gitlab.gnome.org/GNOME/file-roller/-/commit/21dfcdbfe258984db89fb65243a1a888924e45a0 https://lists.debian.org/debian-lts-announce/2020/04/msg00013.html https://security.gentoo.org/glsa/202009-06 https://usn.ubuntu.com/4332-1 https://usn.ubuntu.com/4332-2 https://access.redhat.com/security/cve/CVE-2020-11736 https://bugzilla.redhat.com/show_bug.cgi?id=1824985 • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE-59: Improper Link Resolution Before File Access ('Link Following') •
CVE-2020-1730 – libssh: denial of service when handling AES-CTR (or DES) ciphers
https://notcve.org/view.php?id=CVE-2020-1730
A flaw was found in libssh versions before 0.8.9 and before 0.9.4 in the way it handled AES-CTR (or DES ciphers if enabled) ciphers. The server or client could crash when the connection hasn't been fully initialized and the system tries to cleanup the ciphers when closing the connection. The biggest threat from this vulnerability is system availability. Se detectó un fallo en libssh versiones anteriores a 0.8.9 y versiones anteriores a 0.9.4, en la manera en que se manejaron los cifrados AES-CTR (o DES si está habilitado). El servidor o el cliente podrían bloquearse cuando la conexión no ha sido inicializada completamente y el sistema intenta limpiar los cifrados cuando se cierra la conexión. • https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1730 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2A7BIFKUYIYKTY7FX4BEWVC2OHS5DPOU https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VLSWHBQ3EPKGTGLQNH554Z746BJ3C554 https://security.netapp.com/advisory/ntap-20200424-0001 https://usn.ubuntu.com/4327-1 https://www.libssh.org/security/advisories/CVE-2020-1730.txt https://www.oracle.com/security-alerts/cpuoct2020.html https:/ • CWE-476: NULL Pointer Dereference •
CVE-2020-11655
https://notcve.org/view.php?id=CVE-2020-11655
SQLite through 3.31.1 allows attackers to cause a denial of service (segmentation fault) via a malformed window-function query because the AggInfo object's initialization is mishandled. SQLite versiones hasta 3.31.1, permite a atacantes causar una denegación de servicio (fallo de segmentación) por medio de una consulta de una función de window malformada porque la inicialización el objeto AggInfo es manejada inapropiadamente. • https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf https://lists.debian.org/debian-lts-announce/2020/05/msg00006.html https://lists.debian.org/debian-lts-announce/2020/08/msg00037.html https://security.FreeBSD.org/advisories/FreeBSD-SA-20:22.sqlite.asc https://security.gentoo.org/glsa/202007-26 https://security.netapp.com/advisory/ntap-20200416-0001 https://usn.ubuntu.com/4394-1 https://www.oracle.com/security-alerts/cpuApr2021.html https://www.oracle.com/security- • CWE-665: Improper Initialization •
CVE-2020-11565 – kernel: out-of-bounds write in mpol_parse_str function in mm/mempolicy.c
https://notcve.org/view.php?id=CVE-2020-11565
An issue was discovered in the Linux kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c has a stack-based out-of-bounds write because an empty nodelist is mishandled during mount option parsing, aka CID-aa9f7d5172fa. NOTE: Someone in the security community disagrees that this is a vulnerability because the issue “is a bug in parsing mount options which can only be specified by a privileged user, so triggering the bug does not grant any powers not already held.” ** EN DISPUTA ** Se detectó un problema en el kernel de Linux versiones hasta 5.6.2. La función mpol_parse_str en el archivo mm/mempolicy.c presenta una escritura fuera de límites en la región stack de la memoria porque una lista de nodos vacía es manejada inapropiadamente durante el análisis de la opción de montaje, también se conoce como CID-aa9f7d5172fa. NOTA: Alguien en la comunidad de seguridad no está de acuerdo en que se trata de una vulnerabilidad porque el problema "es un error en el análisis de las opciones de montaje que sólo puede ser especificado por un usuario privilegiado, por lo que la activación del error no otorga ningún poder que no se tenga ya". An out-of-bounds write flaw was found in the Linux kernel. • https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=aa9f7d5172fac9bf1f09e678c35e287a40a7b7dd https://github.com/torvalds/linux/commit/aa9f7d5172fac9bf1f09e678c35e287a40a7b7dd https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html https://usn.ubuntu.com/4363-1 https://usn.ubuntu.com/4364-1 https://usn.ubuntu.com/4367-1 https: • CWE-787: Out-of-bounds Write •
CVE-2020-11501 – gnutls: DTLS client hello contains a random value of all zeroes
https://notcve.org/view.php?id=CVE-2020-11501
GnuTLS 3.6.x before 3.6.13 uses incorrect cryptography for DTLS. The earliest affected version is 3.6.3 (2018-07-16) because of an error in a 2017-10-06 commit. The DTLS client always uses 32 '\0' bytes instead of a random value, and thus contributes no randomness to a DTLS negotiation. This breaks the security guarantees of the DTLS protocol. GnuTLS versiones 3.6.x anteriores a 3.6.13, usa una criptografía incorrecta para DTLS. • http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00015.html https://gitlab.com/gnutls/gnutls/-/commit/5b595e8e52653f6c5726a4cdd8fddeb6e83804d2 https://gitlab.com/gnutls/gnutls/-/issues/960 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ILMOWPKMTZAIMK5F32TUMO34XCABUCFJ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WDYY3R4F5CUTFAMXH2C5NKYFVDEJLTT7 https://security.gentoo.org/glsa/202004-06 https://security.netapp.com/advis • CWE-327: Use of a Broken or Risky Cryptographic Algorithm CWE-330: Use of Insufficiently Random Values •