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CVSS: 10.0EPSS: 1%CPEs: 14EXPL: 0

CVE-2019-14896 – kernel: heap-based buffer overflow in lbs_ibss_join_existing function in drivers/net/wireless/marvell/libertas/cfg.c

https://notcve.org/view.php?id=CVE-2019-14896

A heap-based buffer overflow vulnerability was found in the Linux kernel, version kernel-2.6.32, in Marvell WiFi chip driver. A remote attacker could cause a denial of service (system crash) or, possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP. Se encontró una vulnerabilidad de desbordamiento de búfer basada en el montón en el kernel de Linux, versión kernel-2.6.32, en el controlador de chip WiFi Marvell. Un atacante remoto podría causar una denegación de servicio (bloqueo del sistema) o, posiblemente, ejecutar código arbitrario, cuando se llama a la función lbs_ibss_join_existing después de que una STA se conecta a un AP. A heap-based buffer overflow vulnerability was found in the Linux kernel's Marvell WiFi chip driver. • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html http://packetstormsecurity.com/files/155879/Kernel-Live-Patch-Security-Notice-LSN-0061-1.html http://packetstormsecurity.com/files/156185/Kernel-Live-Patch-Security-Notice-LSN-0062-1.html https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14896 https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html https://lists.fedoraproject.org/archives/list& • CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •

CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0

CVE-2019-19252

https://notcve.org/view.php?id=CVE-2019-19252

vcs_write in drivers/tty/vt/vc_screen.c in the Linux kernel through 5.3.13 does not prevent write access to vcsu devices, aka CID-0c9acb1af77a. La función vcs_write en el archivo drivers/tty/vt/vc_screen.c en el kernel de Linux versiones hasta la versión 5.3.13, no impide el acceso de escritura a dispositivos vcsu. • https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git/commit/?h=tty-testing&id=0c9acb1af77a3cb8707e43f45b72c95266903cee https://lore.kernel.org/lkml/c30fc539-68a8-65d7-226c-6f8e6fd8bdfb%40suse.com https://security.netapp.com/advisory/ntap-20200103-0001 https://usn.ubuntu.com/4258-1 https://usn.ubuntu.com/4284-1 • CWE-125: Out-of-bounds Read •

CVSS: 7.8EPSS: 0%CPEs: 6EXPL: 1

CVE-2019-18675

https://notcve.org/view.php?id=CVE-2019-18675

The Linux kernel through 5.3.13 has a start_offset+size Integer Overflow in cpia2_remap_buffer in drivers/media/usb/cpia2/cpia2_core.c because cpia2 has its own mmap implementation. This allows local users (with /dev/video0 access) to obtain read and write permissions on kernel physical pages, which can possibly result in a privilege escalation. El kernel de Linux versiones hasta 5.3.13, presenta un desbordamiento de enteros de start_offset+size en cpia2_remap_buffer en el archivo drivers/media/usb/cpia2/cpia2_core.c porque cpia2 posee su propia implementación de mmap. Esto permite a usuarios locales (con acceso a /dev/video0) obtener permisos de lectura y escritura en las páginas físicas del kernel, lo que posiblemente puede resultar en una escalada de privilegios. • https://deshal3v.github.io/blog/kernel-research/mmap_exploitation https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=be83bbf806822b1b89e0a0f23cd87cddc409e429 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/media/usb/cpia2/cpia2_core.c https://security.netapp.com/advisory/ntap-20200103-0001 • CWE-190: Integer Overflow or Wraparound •

CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0

CVE-2019-19227

https://notcve.org/view.php?id=CVE-2019-19227

In the AppleTalk subsystem in the Linux kernel before 5.1, there is a potential NULL pointer dereference because register_snap_client may return NULL. This will lead to denial of service in net/appletalk/aarp.c and net/appletalk/ddp.c, as demonstrated by unregister_snap_client, aka CID-9804501fa122. En el subsistema AppleTalk en el kernel de Linux versiones anteriores a 5.1, se presenta una posible desreferencia del puntero NULL porque la función register_snap_client puede devolver NULL. Esto conllevará a una denegación de servicio en los archivos net/appletalk/aarp.c y net/appletalk/ddp.c, como es demostrado por la función unregister_snap_client, también se conoce como CID-9804501fa122. • http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html http://packetstormsecurity.com/files/155890/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9804501fa1228048857910a6bf23e085aade37cc https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html https:/&# • CWE-476: NULL Pointer Dereference •

CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 1

CVE-2019-19037

https://notcve.org/view.php?id=CVE-2019-19037

ext4_empty_dir in fs/ext4/namei.c in the Linux kernel through 5.3.12 allows a NULL pointer dereference because ext4_read_dirblock(inode,0,DIRENT_HTREE) can be zero. La función ext4_empty_dir en el archivo fs/ext4/namei.c en el kernel de Linux versiones hasta 5.3.12, permite una desreferencia del puntero NULL porque la función ext4_read_dirblock(inode,0,DIRENT_HTREE) puede ser cero. • https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19037 https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html https://security.netapp.com/advisory/ntap-20191205-0001 • CWE-476: NULL Pointer Dereference •