CVE-2020-16003 – chromium-browser: Use after free in printing
https://notcve.org/view.php?id=CVE-2020-16003
Use after free in printing in Google Chrome prior to 86.0.4240.111 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Un uso de la memoria previamente en printing liberada en Google Chrome anterior a versión 86.0.4240.111, permitía a un atacante remoto explotar potencialmente una corrupción de la pila por medio de una página HTML diseñada • http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00016.html https://chromereleases.googleblog.com/2020/10/stable-channel-update-for-desktop_20.html https://crbug.com/1134960 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/24QFL4C3AZKMFVL7LVSYMU2DNE5VVUGS https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4GWCWNHTTYOH6HSFUXPGPBB6J6JYZHZE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SC3U3H6A • CWE-416: Use After Free CWE-787: Out-of-bounds Write •
CVE-2020-27674
https://notcve.org/view.php?id=CVE-2020-27674
An issue was discovered in Xen through 4.14.x allowing x86 PV guest OS users to gain guest OS privileges by modifying kernel memory contents, because invalidation of TLB entries is mishandled during use of an INVLPG-like attack technique. Se detectó un problema en Xen versiones hasta 4.14.x, permitiendo a usuarios de SO invitado de PV x86 alcanzar privilegios de SO invitado modificando el contenido de la memoria del kernel, porque una invalidación de las entradas TLB es manejada inapropiadamente durante el uso de una técnica de ataque similar a INVLPG • http://www.openwall.com/lists/oss-security/2021/01/19/5 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PZAM3LYJ5TZLSSNL3KXFILM46QKVTOUA https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3U4LNKKXU4UP4Z5XP6TMIWSML3QODPE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XIK57QJOVOPWH6RFRNMGOBCROBCKMDG2 https://security.gentoo.org/glsa/202011-06 https://www.debian.org/security/2020/dsa-4804 https:/ • CWE-787: Out-of-bounds Write •
CVE-2020-27675
https://notcve.org/view.php?id=CVE-2020-27675
An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. drivers/xen/events/events_base.c allows event-channel removal during the event-handling loop (a race condition). This can cause a use-after-free or NULL pointer dereference, as demonstrated by a dom0 crash via events for an in-reconfiguration paravirtualized device, aka CID-073d0552ead5. Se detectó un problema en el kernel de Linux versiones hasta 5.9.1, como es usado con Xen versiones hasta 4.14.x. El archivo drivers/xen/events/events_base.c permite la eliminación del canal de eventos durante el ciclo de manejo de eventos (una condición de carrera). Esto puede causar una desreferencia del puntero NULL y un uso de la memoria previamente liberada como es demostrado por un bloqueo dom0 por medio de eventos para un dispositivo paravirtualizado en reconfiguración, también se conoce como CID-073d0552ead5 • http://www.openwall.com/lists/oss-security/2021/01/19/3 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073d0552ead5bfc7a3a9c01de590e924f11b5dd2 https://github.com/torvalds/linux/commit/073d0552ead5bfc7a3a9c01de590e924f11b5dd2 https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3ZG6TZLD23QO3PV2AN2HB625ZX47ALTT https:/ • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free CWE-476: NULL Pointer Dereference •
CVE-2020-25649 – jackson-databind: FasterXML DOMDeserializer insecure entity expansion is vulnerable to XML external entity (XXE)
https://notcve.org/view.php?id=CVE-2020-25649
A flaw was found in FasterXML Jackson Databind, where it did not have entity expansion secured properly. This flaw allows vulnerability to XML external entity (XXE) attacks. The highest threat from this vulnerability is data integrity. Se encontró un fallo en FasterXML Jackson Databind, donde no tenía la expansión de entidad asegurada apropiadamente. Este fallo permite una vulnerabilidad a ataques de tipo XML external entity (XXE). • https://bugzilla.redhat.com/show_bug.cgi?id=1887664 https://github.com/FasterXML/jackson-databind/issues/2589 https://lists.apache.org/thread.html/r011d1430e8f40dff9550c3bc5d0f48b14c01ba8aecabd91d5e495386%40%3Ccommits.turbine.apache.org%3E https://lists.apache.org/thread.html/r024b7bda9c43c5560d81238748775c5ecfe01b57280f90df1f773949%40%3Cissues.hive.apache.org%3E https://lists.apache.org/thread.html/r04529cedaca40c2ff90af4880493f9c88a8ebf4d1d6c861d23108a5a%40%3Cnotifications.zookeeper.apache.org%3E https://lists.apache.org/thread.html/r0881e23bd9034c8f51fdccdc8f4d085ba985d • CWE-611: Improper Restriction of XML External Entity Reference •
CVE-2020-27638
https://notcve.org/view.php?id=CVE-2020-27638
receive.c in fastd before v21 allows denial of service (assertion failure) when receiving packets with an invalid type code. En el archivo Receive.c en fastd versiones anteriores a v21, permite una denegación de servicio (fallo de aserción) cuando se reciben paquetes con un código de tipo no válido • https://bugs.debian.org/972521 https://fastd.readthedocs.io/en/stable/releases/v21.html https://github.com/NeoRaider/fastd/commit/737925113363b6130879729cdff9ccc46c33eaea https://lists.debian.org/debian-lts-announce/2020/10/msg00025.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D2LNSF2LI4RQ7BVGHTJQUJWP7RVGHDTK https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GUZ3AGTAXH7OOP45F5WXBVRQ3IDWUR7M https://lists.fedoraproject.org/archives/list/pack • CWE-617: Reachable Assertion •