CVSS: 8.6EPSS: 0%CPEs: 5EXPL: 0CVE-2021-21207
https://notcve.org/view.php?id=CVE-2021-21207
Use after free in IndexedDB in Google Chrome prior to 90.0.4430.72 allowed an attacker who convinced a user to install a malicious extension to potentially perform a sandbox escape via a crafted Chrome Extension. Un uso de la memoria previamente liberada en IndexedDB en Google Chrome versiones anteriores a 90.0.4430.72, permitía a un atacante convencer a un usuario de instalar una extensión maliciosa para llevar a cabo potencialmente un escape del sandbox por medio de una extensión de Chrome diseñada • https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop_14.html https://crbug.com/1185732 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A https://security.gentoo.org/glsa/202104-08 https:/ • CWE-416: Use After Free •
CVSS: 8.6EPSS: 0%CPEs: 5EXPL: 0CVE-2021-21202
https://notcve.org/view.php?id=CVE-2021-21202
Use after free in extensions in Google Chrome prior to 90.0.4430.72 allowed an attacker who convinced a user to install a malicious extension to potentially perform a sandbox escape via a crafted Chrome Extension. Un uso de la memoria previamente liberada en extensions de Google Chrome versiones anteriores a 90.0.4430.72, permitía a un atacante convencer a un usuario de instalar una extensión maliciosa para llevar a cabo potencialmente un escape del sandbox por medio de una extensión de Chrome diseñada • https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop_14.html https://crbug.com/1188889 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A https://security.gentoo.org/glsa/202104-08 https:/ • CWE-416: Use After Free •
CVSS: 9.6EPSS: 0%CPEs: 5EXPL: 0CVE-2021-21201
https://notcve.org/view.php?id=CVE-2021-21201
Use after free in permissions in Google Chrome prior to 90.0.4430.72 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. Un uso de la memoria previamente liberada en permissions en Google Chrome versiones anteriores a 90.0.4430.72, permitía a un atacante remoto que había comprometido el proceso del renderizador llevar a cabo potencialmente un escape del sandbox por medio de una página HTML diseñada • https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop_14.html https://crbug.com/1025683 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A https://security.gentoo.org/glsa/202104-08 https:/ • CWE-416: Use After Free •
CVSS: 7.4EPSS: 0%CPEs: 4EXPL: 0CVE-2021-21198 – Chrome Legacy ipc::Message Passed Via Shared Memory
https://notcve.org/view.php?id=CVE-2021-21198
Out of bounds read in IPC in Google Chrome prior to 89.0.4389.114 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. Una lectura fuera de límites en IPC en Google Chrome versiones anteriores a 89.0.4389.114, permitía a un atacante remoto que había comprometido el proceso del renderizador llevar a cabo potencialmente un escape del sandbox por medio de una página HTML diseñada Looking at the Mojo implementation of Chrome's legacy IPC, the legacy ipc::Message type is transferred inside a BigBuffer. • http://packetstormsecurity.com/files/162973/Chrome-Legacy-ipc-Message-Passed-Via-Shared-Memory.html https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_30.html https://crbug.com/1184399 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproje • CWE-125: Out-of-bounds Read •
CVSS: 8.2EPSS: 0%CPEs: 4EXPL: 0CVE-2021-21381 – Sandbox escape via special tokens in .desktop file
https://notcve.org/view.php?id=CVE-2021-21381
Flatpak es un sistema para construir, distribuir y ejecutar aplicaciones de escritorio en sandbox en Linux. ... Como solución, evite instalar aplicaciones Flatpak de fuentes no fiables, o compruebe el contenido de los archivos exportados ".desktop" en "exports/share/applications/*.desktop" (normalmente "~/.local/share/flatpak/exports/share/applications/*.desktop" y "/var/lib/flatpak/exports/share/applications/*.desktop") para asegurarse de que los nombres literales de los archivos no siguen "@@" o "@@u" A sandbox escape flaw was found in the way flatpak handled special tokens in ".desktop" files. • https://github.com/flatpak/flatpak/commit/8279c5818425b6812523e3805bbe242fb6a5d961 https://github.com/flatpak/flatpak/commit/a7401e638bf0c03102039e216ab1081922f140ae https://github.com/flatpak/flatpak/commit/eb7946bb6248923d8c90fe9b84425fef97ae580d https://github.com/flatpak/flatpak/pull/4156 https://github.com/flatpak/flatpak/releases/tag/1.10.2 https://github.com/flatpak/flatpak/security/advisories/GHSA-xgh4-387p-hqpp https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2MXXLXC2DPJ45HSMTI5MZYHMYEGQN6AA&# • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') CWE-284: Improper Access Control •