CVSS: 8.6EPSS: 0%CPEs: 4EXPL: 1CVE-2020-28591
https://notcve.org/view.php?id=CVE-2020-28591
An out-of-bounds read vulnerability exists in the AMF File AMFParserContext::endElement() functionality of Slic3r libslic3r 1.3.0 and Master Commit 92abbc42. A specially crafted AMF file can lead to information disclosure. An attacker can provide a malicious file to trigger this vulnerability. Se presenta una vulnerabilidad de lectura fuera de límites en la funcionalidad AMF File AMFParserContext::endElement() de Slic3r libslic3r versión 1.3.0 y Master Commit 92abbc42. Un archivo AMF especialmente diseñado puede conllevar a una divulgación de información. • https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KBEK4H23AS6TKTGU2OTMHAZZYNECQVCB https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TCSYYURJTUKJSEZIPDAXK4NHRXZMHIVA https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WJPM24DY36EH3HFJGAXDLGFT43VZWLJ7 https://talosintelligence.com/vulnerability_reports/TALOS-2020-1215 • CWE-20: Improper Input Validation CWE-125: Out-of-bounds Read •
CVSS: 7.6EPSS: 0%CPEs: 20EXPL: 0CVE-2020-25647 – grub2: Out-of-bounds write in grub_usb_device_initialize()
https://notcve.org/view.php?id=CVE-2020-25647
A flaw was found in grub2 in versions prior to 2.06. During USB device initialization, descriptors are read with very little bounds checking and assumes the USB device is providing sane values. If properly exploited, an attacker could trigger memory corruption leading to arbitrary code execution allowing a bypass of the Secure Boot mechanism. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo en grub2 en versiones anteriores a 2.06. • https://bugzilla.redhat.com/show_bug.cgi?id=1886936 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R https://security.gentoo.org/glsa/202104-05 https://security.netapp.com/advisory/ntap-20220325-0001 https://access.redhat.com/security/cve/CVE-2020-25647 • CWE-787: Out-of-bounds Write •
CVSS: 7.5EPSS: 0%CPEs: 21EXPL: 1CVE-2020-14372 – grub2: acpi command allows privileged user to load crafted ACPI tables when Secure Boot is enabled
https://notcve.org/view.php?id=CVE-2020-14372
A flaw was found in grub2 in versions prior to 2.06, where it incorrectly enables the usage of the ACPI command when Secure Boot is enabled. This flaw allows an attacker with privileged access to craft a Secondary System Description Table (SSDT) containing code to overwrite the Linux kernel lockdown variable content directly into memory. The table is further loaded and executed by the kernel, defeating its Secure Boot lockdown and allowing the attacker to load unsigned code. The highest threat from this vulnerability is to data confidentiality and integrity, as well as system availability. Se encontró un fallo en grub2 en versiones anteriores a 2.06, donde habilita incorrectamente el uso del comando ACPI cuando Secure Boot está habilitado. • https://github.com/kukrimate/CVE-2020-14372 https://access.redhat.com/security/vulnerabilities/RHSB-2021-003 https://bugzilla.redhat.com/show_bug.cgi?id=1873150 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R https://security.gentoo.org/glsa/202104-05 https://security.netapp.com/advisory/ntap-20210416-0004 https://access.redhat.com/security/cve/CVE-2020-14372 • CWE-184: Incomplete List of Disallowed Inputs •
CVSS: 7.5EPSS: 0%CPEs: 20EXPL: 0CVE-2021-20225 – grub2: Heap out-of-bounds write in short form option parser
https://notcve.org/view.php?id=CVE-2021-20225
A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo en grub2 en versiones anteriores a 2.06. El analizador de opciones permite a un atacante escribir más allá del final de un búfer asignado a la pila al llamar a determinados comandos con una gran cantidad de formularios de opciones cortos específicos. • https://bugzilla.redhat.com/show_bug.cgi?id=1924696 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R https://security.gentoo.org/glsa/202104-05 https://security.netapp.com/advisory/ntap-20220325-0001 https://access.redhat.com/security/cve/CVE-2021-20225 • CWE-787: Out-of-bounds Write •
CVSS: 7.5EPSS: 0%CPEs: 20EXPL: 0CVE-2020-27779 – grub2: cutmem command allows privileged user to remove memory regions when Secure Boot is enabled
https://notcve.org/view.php?id=CVE-2020-27779
A flaw was found in grub2 in versions prior to 2.06. The cutmem command does not honor secure boot locking allowing an privileged attacker to remove address ranges from memory creating an opportunity to circumvent SecureBoot protections after proper triage about grub's memory layout. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo en grub2 en versiones anteriores a 2.06. El comando cutmem no respeta el bloqueo de secure boot, permitiendo a un atacante privilegiado eliminar rangos de direcciones de la memoria, creando una oportunidad para omitir unas protecciones de SecureBoot después de una clasificación apropiada sobre el diseño de la memoria de grub. • https://bugzilla.redhat.com/show_bug.cgi?id=1900698 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R https://security.gentoo.org/glsa/202104-05 https://security.netapp.com/advisory/ntap-20220325-0001 https://access.redhat.com/security/cve/CVE-2020-27779 • CWE-285: Improper Authorization •