CVE-2020-9383 – kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c
https://notcve.org/view.php?id=CVE-2020-9383
An issue was discovered in the Linux kernel 3.16 through 5.5.6. set_fdc in drivers/block/floppy.c leads to a wait_til_ready out-of-bounds read because the FDC index is not checked for errors before assigning it, aka CID-2e90ca68b0d2. Se detectó un problema en el kernel de Linux versión 3.16 hasta la versión 5.5.6. La función set_fdc en el archivo drivers/block/floppy.c, conlleva a una lectura fuera de límites de wait_til_ready porque el índice FDC no es comprobado para errores antes de asignarlos, también se conoce como CID-2e90ca68b0d2 An out-of-bounds (OOB) memory access flaw was found in the floppy driver module in the Linux kernel. A bounds check failure allows a local attacker to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability. • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=2f9ac30a54dc0181ddac3705cdcf4775d863c530 https://github.com/torvalds/linux/commit/2e90ca68b0d2f5548804f22f0dd61145516171e3 https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html https://security.netapp.com/advisory/ntap& • CWE-125: Out-of-bounds Read •
CVE-2011-0699
https://notcve.org/view.php?id=CVE-2011-0699
Integer signedness error in the btrfs_ioctl_space_info function in the Linux kernel 2.6.37 allows local users to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a crafted slot value. Un error en la propiedad signedness de enteros en la función btrfs_ioctl_space_info en el kernel de Linux versión 2.6.37, permite a usuarios locales causar una denegación de servicio (desbordamiento de búfer basado en la región heap de la memoria) o posiblemente tener otro impacto no especificado por medio de un valor de slot diseñado. • http://marc.info/?l=linux-kernel&m=129726078708425&w=2 http://marc.info/?l=oss-security&m=129726743519620&w=2 http://vulnfactory.org/vulns https://github.com/BlankOn/linux-debian/blob/master/debian/changelog.BlankOn • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-787: Out-of-bounds Write •
CVE-2011-4915
https://notcve.org/view.php?id=CVE-2011-4915
fs/proc/base.c in the Linux kernel through 3.1 allows local users to obtain sensitive keystroke information via access to /proc/interrupts. El archivo fs/proc/base.c en el kernel de Linux versiones hasta 3.1, permite a usuarios locales obtener información confidencial de pulsaciones de teclas por medio del acceso a /proc/interrupts. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0499680a42141d86417a8fbaa8c8db806bea1201 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a2ef990ab5a6705a356d146dd773a3b359787497 http://people.canonical.com/~ubuntu-security/cve/2011/CVE-2011-4915.html http://www.openwall.com/lists/oss-security/2011/11/07/9 https://lkml.org/lkml/2011/11/7/340 https://seclists.org/oss-sec/2011/q4/571 https://security-tracker.debian.org/tracker/CVE- • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVE-2020-8992
https://notcve.org/view.php?id=CVE-2020-8992
ext4_protect_reserved_inode in fs/ext4/block_validity.c in the Linux kernel through 5.5.3 allows attackers to cause a denial of service (soft lockup) via a crafted journal size. La función ext4_protect_reserved_inode en el archivo fs/ext4/block_validity.c en el kernel de Linux versiones hasta 5.5.3, permite a atacantes causar una denegación de servicio (soft lockup) por medio de un journal size diseñado. • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html https://patchwork.ozlabs.org/patch/1236118 https://security.netapp.com/advisory/ntap-20200313-0003 https://usn.ubuntu.com/4318-1 https://usn.ubuntu.com/4324-1 https://usn.ubuntu.com/4342-1 https://usn.ubuntu.com/4344-1 https://usn.ubuntu.com/4419-1 • CWE-400: Uncontrolled Resource Consumption CWE-834: Excessive Iteration •
CVE-2020-8647 – kernel: out-of-bounds read in in vc_do_resize function in drivers/tty/vt/vt.c
https://notcve.org/view.php?id=CVE-2020-8647
There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vc_do_resize function in drivers/tty/vt/vt.c. Se presenta una vulnerabilidad de uso de la memoria previamente liberada en el kernel de Linux versiones hasta 5.5.2 en la función vc_do_resize en el archivo drivers/tty/vt/vt.c. A flaw was found in the Linux kernel’s virtual console resize functionality. An attacker with local access to virtual consoles can use the virtual console resizing code to gather kernel internal data structures. • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html https://bugzilla.kernel.org/show_bug.cgi?id=206359 https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html https://www.debian.org/security/2020/dsa-4698 https://access.redhat.com/security/cve/CVE-2020-8647 https://bugzilla.redhat.com/show_bug.cgi?id=1802563 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-416: Use After Free •