CVSS: 4.7EPSS: 0%CPEs: 2EXPL: 2CVE-2021-33624
https://notcve.org/view.php?id=CVE-2021-33624
In kernel/bpf/verifier.c in the Linux kernel before 5.12.13, a branch can be mispredicted (e.g., because of type confusion) and consequently an unprivileged BPF program can read arbitrary memory locations via a side-channel attack, aka CID-9183671af6db. En el archivo kernel/bpf/verifier.c en el kernel de Linux versiones anteriores a 5.12.13, una rama puede ser mal predicha (por ejemplo, debido a la confusión de tipos) y, en consecuencia, un programa BPF no privilegiado puede leer ubicaciones de memoria arbitrarias por medio de un ataque de canal lateral, también conocido como CID-9183671af6db • https://github.com/benschlueter/CVE-2021-33624 http://www.openwall.com/lists/oss-security/2021/06/21/1 https://github.com/torvalds/linux/commit/9183671af6dbf60a1219371d4ed73e23f43b49db https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html https://www.usenix.org/conference/usenixsecurity21/presentation/kirzner • CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') •
CVSS: 7.0EPSS: 0%CPEs: 68EXPL: 1CVE-2021-3609 – kernel: race condition in net/can/bcm.c leads to local privilege escalation
https://notcve.org/view.php?id=CVE-2021-3609
.A flaw was found in the CAN BCM networking protocol in the Linux kernel, where a local attacker can abuse a flaw in the CAN subsystem to corrupt memory, crash the system or escalate privileges. This race condition in net/can/bcm.c in the Linux kernel allows for local privilege escalation to root. Se ha encontrado un fallo en el protocolo de red CAN BCM en el kernel de Linux, donde un atacante local puede abusar de un fallo en el subsistema CAN para corromper la memoria, bloquear el sistema o escalar privilegios. Esta condición de carrera en el archivo net/can/bcm.c en el kernel de Linux permite una escalada de privilegios local a root A flaw was found in the CAN BCM networking protocol in the Linux kernel, where a local attacker can abuse a flaw in the CAN subsystem to corrupt memory, crash the system or escalate privileges. • https://bugzilla.redhat.com/show_bug.cgi?id=1971651 https://github.com/nrb547/kernel-exploitation/blob/main/cve-2021-3609/cve-2021-3609.md https://github.com/torvalds/linux/commit/d5f9023fa61ee8b94f37a93f08e94b136cf1e463 https://security.netapp.com/advisory/ntap-20220419-0004 https://www.openwall.com/lists/oss-security/2021/06/19/1 https://access.redhat.com/security/cve/CVE-2021-3609 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 7.1EPSS: 0%CPEs: 1EXPL: 1CVE-2021-32078
https://notcve.org/view.php?id=CVE-2021-32078
An Out-of-Bounds Read was discovered in arch/arm/mach-footbridge/personal-pci.c in the Linux kernel through 5.12.11 because of the lack of a check for a value that shouldn't be negative, e.g., access to element -2 of an array, aka CID-298a58e165e4. Se ha detectado una lectura fuera de límites en el archivo arch/arm/mach-footbridge/personal-pci.c en el kernel de Linux versiones hasta 5.12.11, debido a una falta de comprobación de un valor que no debería ser negativo, por ejemplo, el acceso al elemento -2 de un array, también se conoce como CID-298a58e165e4 • https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=298a58e165e447ccfaae35fe9f651f9d7e15166f https://github.com/torvalds/linux/commit/298a58e165e447ccfaae35fe9f651f9d7e15166f https://kirtikumarar.com/CVE-2021-32078.txt https://security.netapp.com/advisory/ntap-20210813-0002 • CWE-125: Out-of-bounds Read •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 1CVE-2021-34693
https://notcve.org/view.php?id=CVE-2021-34693
net/can/bcm.c in the Linux kernel through 5.12.10 allows local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized. El archivo net/can/bcm.c en el kernel de Linux versiones hasta 5.12.10, permite a usuarios locales obtener información confidencial de la memoria de la pila del kernel porque partes de una estructura de datos no están inicializadas • http://www.openwall.com/lists/oss-security/2021/06/15/1 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5e87ddbe3942e27e939bdc02deb8579b0cbd8ecc https://lists.debian.org/debian-lts-announce/2021/07/msg00014.html https://lists.debian.org/debian-lts-announce/2021/07/msg00015.html https://lists.debian.org/debian-lts-announce/2021/07/msg00016.html https://lore.kernel.org/netdev/trinity-87eaea25-2a7d-4aa9-92a5-269b822e5d95-1623609211076%403c-app-gmx-bs04/T https://ww • CWE-909: Missing Initialization of Resource •
CVSS: 6.4EPSS: 0%CPEs: 12EXPL: 0CVE-2021-0129 – kernel: Improper access control in BlueZ may allow information disclosure vulnerability.
https://notcve.org/view.php?id=CVE-2021-0129
Improper access control in BlueZ may allow an authenticated user to potentially enable information disclosure via adjacent access. Un control de acceso inapropiado en BlueZ puede permitir a un usuario autenticado permitir potencialmente una divulgación de información por medio de un acceso adyacente A flaw was found in the Linux kernel. Improper access control in BlueZ may allow an authenticated user to potentially enable information disclosure via adjacent access. The highest threat from this vulnerability is to data confidentiality and integrity. • https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html https://lists.debian.org/debian-lts-announce/2021/06/msg00022.html https://security.gentoo.org/glsa/202209-16 https://security.netapp.com/advisory/ntap-20210716-0002 https://www.debian.org/security/2021/dsa-4951 https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00517.html https://access.redhat.com/security/cve/CVE-2021& • CWE-287: Improper Authentication •