CVSS: 7.8EPSS: 0%CPEs: 17EXPL: 1CVE-2022-25265 – kernel: Executable Space Protection Bypass
https://notcve.org/view.php?id=CVE-2022-25265
In the Linux kernel through 5.16.10, certain binary files may have the exec-all attribute if they were built in approximately 2003 (e.g., with GCC 3.2.2 and Linux kernel 2.4.20). This can cause execution of bytes located in supposedly non-executable regions of a file. En el kernel de Linux versiones hasta 5.16.10, determinados archivos binarios pueden tener el atributo exec-all si fueron construidos aproximadamente en 2003 (por ejemplo, con GCC versión 3.2.2 y el kernel de Linux versión 2.4.20). Esto puede causar una ejecución de bytes ubicados en regiones supuestamente no ejecutables de un archivo A vulnerability was found in the Linux kernel when certain binary files have the exec-all attribute with gcc. This issue can cause the execution of bytes located in the non-executable regions of a file. • https://github.com/torvalds/linux/blob/1c33bb0507508af24fd754dd7123bd8e997fab2f/arch/x86/include/asm/elf.h#L281-L294 https://github.com/x0reaxeax/exec-prot-bypass https://security.netapp.com/advisory/ntap-20220318-0005 https://access.redhat.com/security/cve/CVE-2022-25265 https://bugzilla.redhat.com/show_bug.cgi?id=2055499 • CWE-281: Improper Preservation of Permissions CWE-913: Improper Control of Dynamically-Managed Code Resources •
CVSS: 7.4EPSS: 0%CPEs: 35EXPL: 0CVE-2021-20322 – kernel: new DNS Cache Poisoning Attack based on ICMP fragment needed packets replies
https://notcve.org/view.php?id=CVE-2021-20322
A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well. Se encontró un fallo en el procesamiento de los errores ICMP recibidos (fragmento ICMP necesario y redireccionamiento ICMP) en la funcionalidad del kernel de Linux que permite la capacidad de escanear rápidamente los puertos UDP abiertos. Este fallo permite a un usuario remoto fuera de la ruta de acceso omitir efectivamente la aleatorización del puerto de origen UDP. • https://bugzilla.redhat.com/show_bug.cgi?id=2014230 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v5.15-rc6&id=4785305c05b25a242e5314cc821f54ade4c18810 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v5.15-rc6&id=6457378fe796815c973f631a1904e147d6ee33b1 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/ipv4/route.c?h=v5.15-rc6&id=67d6d681e15b578c1725bad8ad079e05d1c48a8e https://git.kernel.org/pub/scm/linux/ke • CWE-330: Use of Insufficiently Random Values •
CVSS: 7.8EPSS: 0%CPEs: 19EXPL: 0CVE-2021-42252
https://notcve.org/view.php?id=CVE-2021-42252
An issue was discovered in aspeed_lpc_ctrl_mmap in drivers/soc/aspeed/aspeed-lpc-ctrl.c in the Linux kernel before 5.14.6. Local attackers able to access the Aspeed LPC control interface could overwrite memory in the kernel and potentially execute privileges, aka CID-b49a0e69a7b1. This occurs because a certain comparison uses values that are not memory sizes. Se ha detectado un problema en la función aspeed_lpc_ctrl_mmap en el archivo drivers/soc/aspeed/aspeed-lpc-ctrl.c en el kernel de Linux versiones anteriores a 5.14.6. Unos atacantes locales capaces de acceder a la interfaz de control de Aspeed LPC podrían sobrescribir memoria en el kernel y potencialmente ejecutar privilegios, también se conoce como CID-b49a0e69a7b1. • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.6 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b49a0e69a7b1a68c8d3f64097d06dabb770fec96 https://security.netapp.com/advisory/ntap-20211112-0006 •
CVSS: 7.8EPSS: 0%CPEs: 26EXPL: 3CVE-2021-42008
https://notcve.org/view.php?id=CVE-2021-42008
The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access. La función decode_data en el archivo drivers/net/hamradio/6pack.c en el kernel de Linux versiones anteriores a 5.13.13, presenta una escritura fuera de límites. La entrada desde un proceso que tiene la capacidad CAP_NET_ADMIN puede conllevar a un acceso de root • https://github.com/0xdevil/CVE-2021-42008 https://github.com/numanturle/CVE-2021-42008 https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.13 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=19d1532a187669ce86d5a2696eb7275310070793 https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html https://security.netapp.com/advisory/ntap-20211104-0002 https://www.youtube.com/watch?v=d5f9xLK8Vhw • CWE-787: Out-of-bounds Write •
CVSS: 7.8EPSS: 0%CPEs: 27EXPL: 0CVE-2021-41864 – kernel: eBPF multiplication integer overflow in prealloc_elems_and_freelist() in kernel/bpf/stackmap.c leads to out-of-bounds write
https://notcve.org/view.php?id=CVE-2021-41864
prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel before 5.14.12 allows unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write. prealloc_elems_and_freelist en kernel/bpf/stackmap.c en el kernel de Linux antes de la versión 5.14.12 permite a usuarios sin privilegios desencadenar un desbordamiento de enteros en la multiplicación de eBPF con una escritura fuera de los límites resultante. An out-of-bounds (OOB) memory write flaw was found in prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the bpf in the Linux kernel. In this flaw, the multiplication to calculate the size could lead to an integer overflow which could allow a local attacker, with a special user privilege, to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.12 https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/commit/?id=30e29a9a2bc6a4888335a6ede968b75cd329657a https://github.com/torvalds/linux/commit/30e29a9a2bc6a4888335a6ede968b75cd329657a https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7BLLVKYAIETEORUPTFO3TR3C33ZPFXQM http • CWE-190: Integer Overflow or Wraparound CWE-787: Out-of-bounds Write •