CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 2CVE-2021-3347 – kernel: Use after free via PI futex state
https://notcve.org/view.php?id=CVE-2021-3347
29 Jan 2021 — An issue was discovered in the Linux kernel through 5.10.11. PI futexes have a kernel stack use-after-free during fault handling, allowing local users to execute code in the kernel, aka CID-34b1a1ce1458. Se detectó un problema en el kernel de Linux versiones hasta 5.10.11. Los futexes de PI presentan un uso de la memoria previamente liberada de la pila del kernel durante el manejo de fallos, permitiendo a usuarios locales ejecutar código en el kernel, también se conoce como CID-34b1a1ce1458 A flaw was ... • https://github.com/nanopathi/linux-4.19.72_CVE-2021-3347 • CWE-416: Use After Free •
CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-3178 – Ubuntu Security Notice USN-4910-1
https://notcve.org/view.php?id=CVE-2021-3178
19 Jan 2021 — fs/nfsd/nfs3xdr.c in the Linux kernel through 5.10.8, when there is an NFS export of a subdirectory of a filesystem, allows remote attackers to traverse to other parts of the filesystem via READDIRPLUS. NOTE: some parties argue that such a subdirectory export is not intended to prevent this attack; see also the exports(5) no_subtree_check default behavior ** EN DISPUTA ** en el archivo fs/nfsd/nfs3xdr.c en el kernel de Linux versiones hasta 5.10.8, cuando se presenta una exportación NFS de un subdirectorio ... • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=51b2ee7d006a736a9126e8111d1f24e4fd0afaa6 • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') •
CVSS: 4.9EPSS: 0%CPEs: 11EXPL: 1CVE-2020-25639 – Ubuntu Security Notice USN-4949-1
https://notcve.org/view.php?id=CVE-2020-25639
15 Jan 2021 — A NULL pointer dereference flaw was found in the Linux kernel's GPU Nouveau driver functionality in versions prior to 5.12-rc1 in the way the user calls ioctl DRM_IOCTL_NOUVEAU_CHANNEL_ALLOC. This flaw allows a local user to crash the system. Se encontró un fallo de desreferencia del puntero NULL en la funcionalidad del controlador GPU Nouveau del kernel de Linux en versiones anteriores a 5.12-rc1, en la manera en que el usuario llama a ioctl DRM_IOCTL_NOUVEAU_CHANNEL_ALLOC. Este fallo permite que un usuari... • https://bugzilla.redhat.com/show_bug.cgi?id=1876995 • CWE-476: NULL Pointer Dereference •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2020-27830 – Debian Security Advisory 4843-1
https://notcve.org/view.php?id=CVE-2020-27830
15 Jan 2021 — A vulnerability was found in Linux Kernel where in the spk_ttyio_receive_buf2() function, it would dereference spk_ttyio_synth without checking whether it is NULL or not, and may lead to a NULL-ptr deref crash. Se encontró una vulnerabilidad en el kernel de Linux donde, en la función spk_ttyio_receive_buf2(), podría desreferenciar spk_ttyio_synth sin comprobar si es NULL o no, y puede conllevar a un bloqueo deref de NULL-ptr It was discovered that the console keyboard driver in the Linux kernel contained a ... • http://www.openwall.com/lists/oss-security/2020/12/08/1 • CWE-476: NULL Pointer Dereference •
CVSS: 8.1EPSS: 0%CPEs: 5EXPL: 0CVE-2020-28374 – kernel: SCSI target (LIO) write to any block on ILO backstore
https://notcve.org/view.php?id=CVE-2020-28374
13 Jan 2021 — In drivers/target/target_core_xcopy.c in the Linux kernel before 5.10.7, insufficient identifier checking in the LIO SCSI target code can be used by remote attackers to read or write files via directory traversal in an XCOPY request, aka CID-2896c93811e3. For example, an attack can occur over a network if the attacker has access to one iSCSI LUN. The attacker gains control over file access because I/O operations are proxied via an attacker-selected backstore. En el archivo drivers/target/target_core_xcopy.c... • http://packetstormsecurity.com/files/161229/Kernel-Live-Patch-Security-Notice-LSN-0074-1.html • CWE-20: Improper Input Validation CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') •
CVSS: 8.8EPSS: 0%CPEs: 12EXPL: 0CVE-2020-36158 – kernel: buffer overflow in mwifiex_cmd_802_11_ad_hoc_start function in drivers/net/wireless/marvell/mwifiex/join.c via a long SSID value
https://notcve.org/view.php?id=CVE-2020-36158
05 Jan 2021 — mwifiex_cmd_802_11_ad_hoc_start in drivers/net/wireless/marvell/mwifiex/join.c in the Linux kernel through 5.10.4 might allow remote attackers to execute arbitrary code via a long SSID value, aka CID-5c455c5ab332. La función mwifiex_cmd_802_11_ad_hoc_start en el archivo drivers/net/wireless/marvell/mwifiex/join.c en el kernel de Linux versiones hasta 5.10.4, podría permitir a atacantes remotos ejecutar código arbitrario por medio de un valor SSID grande, también se conoce como CID-5c455c5ab332 A flaw was fo... • https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5c455c5ab332773464d02ba17015acdca198f03d • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVSS: 7.8EPSS: 6%CPEs: 14EXPL: 5CVE-2020-27786 – kernel: use-after-free in kernel midi subsystem
https://notcve.org/view.php?id=CVE-2020-27786
11 Dec 2020 — A flaw was found in the Linux kernel’s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to midi devices could trigger a use-after-free issue. A write to this specific memory while freed and before use causes the flow of execution to change and possibly allow for memory corruption or privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Se encontró un fallo en la implementaci... • https://github.com/kiks7/CVE-2020-27786-Kernel-Exploit • CWE-416: Use After Free •
CVSS: 4.4EPSS: 0%CPEs: 19EXPL: 2CVE-2020-29660 – kernel: locking inconsistency in drivers/tty/tty_io.c and drivers/tty/tty_jobctrl.c can lead to a read-after-free
https://notcve.org/view.php?id=CVE-2020-29660
09 Dec 2020 — A locking inconsistency issue was discovered in the tty subsystem of the Linux kernel through 5.9.13. drivers/tty/tty_io.c and drivers/tty/tty_jobctrl.c may allow a read-after-free attack against TIOCGSID, aka CID-c8bcd9c5be24. Se detectó un problema de inconsistencia de bloqueo en el subsistema tty del kernel de Linux versiones hasta 5.9.13. Los archivos drivers/tty/tty_io.c y drivers/tty/tty_jobctrl.c pueden permitir un ataque de lectura de la memoria previamente liberada contra TIOCGSID, también se conoc... • http://packetstormsecurity.com/files/164950/Kernel-Live-Patch-Security-Notice-LSN-0082-1.html • CWE-416: Use After Free CWE-667: Improper Locking •
CVSS: 7.8EPSS: 0%CPEs: 25EXPL: 2CVE-2020-29661 – kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free
https://notcve.org/view.php?id=CVE-2020-29661
09 Dec 2020 — A locking issue was discovered in the tty subsystem of the Linux kernel through 5.9.13. drivers/tty/tty_jobctrl.c allows a use-after-free attack against TIOCSPGRP, aka CID-54ffccbf053b. Se detectó un problema de bloqueo en el subsistema tty del kernel de Linux versiones hasta 5.9.13. El archivo drivers/tty/tty_jobctrl.c, permite un ataque de uso de la memoria previamente liberada contra TIOCSPGRP, también se conoce como CID-54ffccbf053b A locking vulnerability was found in the tty subsystem of the Linux ker... • https://packetstorm.news/files/id/160681 • CWE-416: Use After Free CWE-667: Improper Locking •
CVSS: 7.2EPSS: 0%CPEs: 11EXPL: 2CVE-2020-27777 – kernel: powerpc: RTAS calls can be used to compromise kernel integrity
https://notcve.org/view.php?id=CVE-2020-27777
05 Dec 2020 — A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down (usually due to Secure Boot) guest system running on top of PowerVM or KVM hypervisors (pseries platform) a root like local user could use this flaw to further increase their privileges to that of a running kernel. Se encontró un fallo en la manera en que RTAS manejaba los accesos a la memoria en el espacio de usuario para la comunicación del kernel. En un sistema invitado bloqueado (generalm... • https://bugzilla.redhat.com/show_bug.cgi?id=1900844 • CWE-862: Missing Authorization •