CVE-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') •
CVE-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 •
CVE-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 •
CVE-2018-25015
https://notcve.org/view.php?id=CVE-2018-25015
An issue was discovered in the Linux kernel before 4.14.16. There is a use-after-free in net/sctp/socket.c for a held lock after a peel off, aka CID-a0ff660058b8. Se ha detectado un problema en el kernel de Linux versiones anteriores a 4.14.16. Se presenta un uso de la memoria previamente liberada en el archivo net/sctp/socket.c para un bloqueo retenido después de un despegue, también se conoce como CID-a0ff660058b8 • https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.16 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a0ff660058b88d12625a783ce9e5c1371c87951f https://security.netapp.com/advisory/ntap-20210720-0002 https://sites.google.com/view/syzscope/warning-held-lock-freed https://syzkaller.appspot.com/bug?id=a8d38d1b68ffc744c53bd9b9fc1dbd6c86b1afe2 • CWE-416: Use After Free •
CVE-2020-36386 – kernel: slab out-of-bounds read in hci_extended_inquiry_result_evt() in net/bluetooth/hci_event.c
https://notcve.org/view.php?id=CVE-2020-36386
An issue was discovered in the Linux kernel before 5.8.1. net/bluetooth/hci_event.c has a slab out-of-bounds read in hci_extended_inquiry_result_evt, aka CID-51c19bf3d5cf. Se ha detectado un problema en el kernel de Linux versiones anteriores a 5.8.1. El archivo net/bluetooth/hci_event.c presenta una lectura fuera de límites en la función hci_extended_inquiry_result_evt, también se conoce como CID-51c19bf3d5cf A flaw out of bounds memory access in the Linux kernel bluetooth subsystem was found in the way when some data being read about the bluetooth device with the hci_extended_inquiry_result_evt call. A local user could use this flaw to crash the system or read some data out of memory bounds that can lead to data confidentiality threat. • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.1 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=51c19bf3d5cfaa66571e4b88ba2a6f6295311101 https://sites.google.com/view/syzscope/kasan-slab-out-of-bounds-read-in-hci_extended_inquiry_result_evt https://syzkaller.appspot.com/bug?id=4bf11aa05c4ca51ce0df86e500fce486552dc8d2 https://syzkaller.appspot.com/text?tag=ReproC&x=15ca2f46900000 https://access.redhat.com/security/cve/CVE-2020-36386 https://bugzilla.redhat.com • CWE-125: Out-of-bounds Read •