CVE-2020-25719 – samba: Samba AD DC did not always rely on the SID and PAC in Kerberos tickets
https://notcve.org/view.php?id=CVE-2020-25719
A flaw was found in the way Samba, as an Active Directory Domain Controller, implemented Kerberos name-based authentication. The Samba AD DC, could become confused about the user a ticket represents if it did not strictly require a Kerberos PAC and always use the SIDs found within. The result could include total domain compromise. Se encontró un fallo en la forma en que Samba, como controlador de dominio de Active Directory, implementaba la autenticación basada en nombres de Kerberos. El AD DC de Samba, podía confundirse sobre el usuario que representa un ticket si no requería estrictamente un PAC de Kerberos y siempre usaba los SIDs encontrados dentro. • https://bugzilla.redhat.com/show_bug.cgi?id=2019732 https://security.gentoo.org/glsa/202309-06 https://www.samba.org/samba/security/CVE-2020-25719.html https://access.redhat.com/security/cve/CVE-2020-25719 • CWE-287: Improper Authentication CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVE-2021-3656 – kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE)
https://notcve.org/view.php?id=CVE-2021-3656
A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "virt_ext" field, this issue could allow a malicious L1 to disable both VMLOAD/VMSAVE intercepts and VLS (Virtual VMLOAD/VMSAVE) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape. Se ha encontrado un fallo en el código AMD de KVM para soportar la virtualización anidada SVM. • https://github.com/rami08448/CVE-2021-3656-Demo https://bugzilla.redhat.com/show_bug.cgi?id=1983988 https://git.kernel.org/pub/scm/virt/kvm/kvm.git/commit/?id=c7dfa4009965a9b2d7b329ee970eb8da0d32f0bc https://github.com/torvalds/linux/commit/c7dfa4009965a9b2d7b329ee970eb8da0d32f0bc https://www.openwall.com/lists/oss-security/2021/08/16/1 https://access.redhat.com/security/cve/CVE-2021-3656 • CWE-862: Missing Authorization •
CVE-2019-13762 – chromium-browser: Insufficient policy enforcement in downloads
https://notcve.org/view.php?id=CVE-2019-13762
Insufficient policy enforcement in downloads in Google Chrome on Windows prior to 79.0.3945.79 allowed a local attacker to spoof downloaded files via local code. Una aplicación de política insuficiente en downloads en Google Chrome en Windows versiones anteriores a la versión 79.0.3945.79, permitió a un atacante local falsificar los archivos descargados por medio de un código local. • http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00032.html http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00036.html https://access.redhat.com/errata/RHSA-2019:4238 https://chromereleases.googleblog.com/2019/12/stable-channel-update-for-desktop.html https://crbug.com/1004212 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2Z5M4FPUMDNX2LDPHJKN5ZV5GIS2AKNU https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/m • CWE-667: Improper Locking •
CVE-2019-13763 – chromium-browser: Insufficient policy enforcement in payments
https://notcve.org/view.php?id=CVE-2019-13763
Insufficient policy enforcement in payments in Google Chrome prior to 79.0.3945.79 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. Una aplicación de política insuficiente en payments en Google Chrome versiones anteriores a 79.0.3945.79, permitió a un atacante remoto, que había comprometido el proceso del renderizador, filtrar datos de origen cruzado por medio de una página HTML especialmente diseñada. • http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00032.html http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00036.html https://access.redhat.com/errata/RHSA-2019:4238 https://chromereleases.googleblog.com/2019/12/stable-channel-update-for-desktop.html https://crbug.com/1011600 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2Z5M4FPUMDNX2LDPHJKN5ZV5GIS2AKNU https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/m •
CVE-2019-13759 – chromium-browser: Incorrect security UI in interstitials
https://notcve.org/view.php?id=CVE-2019-13759
Incorrect security UI in interstitials in Google Chrome prior to 79.0.3945.79 allowed a remote attacker to perform domain spoofing via a crafted HTML page. Una Interfaz de Usuario de seguridad incorrecta en interstitials en Google Chrome versiones anteriores a la versión 79.0.3945.79, permitió a un atacante remoto llevar a cabo una suplantación de dominios por medio de una página HTML especialmente diseñada. • http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00032.html http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00036.html https://access.redhat.com/errata/RHSA-2019:4238 https://chromereleases.googleblog.com/2019/12/stable-channel-update-for-desktop.html https://crbug.com/901789 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2Z5M4FPUMDNX2LDPHJKN5ZV5GIS2AKNU https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/me •