CVSS: 5.3EPSS: 0%CPEs: 7EXPL: 2CVE-2020-12826 – kernel: possible to send arbitrary signals to a privileged (suidroot) parent process
https://notcve.org/view.php?id=CVE-2020-12826
12 May 2020 — A signal access-control issue was discovered in the Linux kernel before 5.6.5, aka CID-7395ea4e65c2. Because exec_id in include/linux/sched.h is only 32 bits, an integer overflow can interfere with a do_notify_parent protection mechanism. A child process can send an arbitrary signal to a parent process in a different security domain. Exploitation limitations include the amount of elapsed time before an integer overflow occurs, and the lack of scenarios where signals to a parent process present a substantial... • https://bugzilla.redhat.com/show_bug.cgi?id=1822077 • CWE-94: Improper Control of Generation of Code ('Code Injection') CWE-190: Integer Overflow or Wraparound •
CVSS: 5.9EPSS: 0%CPEs: 20EXPL: 0CVE-2020-10711 – Kernel: NetLabel: null pointer dereference while receiving CIPSO packet with null category may cause kernel panic
https://notcve.org/view.php?id=CVE-2020-10711
12 May 2020 — A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem in versions before 5.7. This flaw occurs while importing the Commercial IP Security Option (CIPSO) protocol's category bitmap into the SELinux extensible bitmap via the' ebitmap_netlbl_import' routine. While processing the CIPSO restricted bitmap tag in the 'cipso_v4_parsetag_rbm' routine, it sets the security attribute to indicate that the category bitmap is present, even if it has not been allocated. This issue leads to a NU... • http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html • CWE-476: NULL Pointer Dereference •
CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0CVE-2020-12768 – Debian Security Advisory 4699-1
https://notcve.org/view.php?id=CVE-2020-12768
09 May 2020 — An issue was discovered in the Linux kernel before 5.6. svm_cpu_uninit in arch/x86/kvm/svm.c has a memory leak, aka CID-d80b64ff297e. NOTE: third parties dispute this issue because it's a one-time leak at the boot, the size is negligible, and it can't be triggered at will ** EN DISPUTA ** Se detectó un problema en el kernel de Linux versiones anteriores a 5.6. La función svm_cpu_uninit en el archivo arch/x86/kvm/svm.c, presenta una pérdida de memoria, también se conoce como CID-d80b64ff297e. NOTA: terceras ... • https://bugzilla.suse.com/show_bug.cgi?id=1171736#c3 • CWE-401: Missing Release of Memory after Effective Lifetime •
CVSS: 5.5EPSS: 0%CPEs: 38EXPL: 2CVE-2020-12769 – Ubuntu Security Notice USN-4391-1
https://notcve.org/view.php?id=CVE-2020-12769
09 May 2020 — An issue was discovered in the Linux kernel before 5.4.17. drivers/spi/spi-dw.c allows attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one, aka CID-19b61392c5a8. Se detectó un problema en el kernel de Linux versiones anteriores a 5.4.17. El archivo drivers/spi/spi-dw.c, permite a atacantes causar un pánico por medio de llamadas concurrentes a las funciones dw_spi_irq y dw_spi_transfer_one, también se conoce como CID-19b61392c5a8. It was discovered that the ext4 file system ... • http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html • CWE-662: Improper Synchronization •
CVSS: 6.7EPSS: 0%CPEs: 44EXPL: 0CVE-2020-12770 – kernel: sg_write function lacks an sg_remove_request call in a certain failure case
https://notcve.org/view.php?id=CVE-2020-12770
09 May 2020 — An issue was discovered in the Linux kernel through 5.6.11. sg_write lacks an sg_remove_request call in a certain failure case, aka CID-83c6f2390040. Se detectó un problema en el kernel de Linux versiones hasta 5.6.11. La función sg_write, carece de una llamada a sg_remove_request en un determinado caso de fallo, también se conoce como CID-83c6f2390040. A vulnerability was found in sg_write in drivers/scsi/sg.c in the SCSI generic (sg) driver subsystem. This flaw allows an attacker with local access and spe... • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=83c6f2390040f188cc25b270b4befeb5628c1aee • CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 41EXPL: 1CVE-2020-12771 – Ubuntu Security Notice USN-4463-1
https://notcve.org/view.php?id=CVE-2020-12771
09 May 2020 — An issue was discovered in the Linux kernel through 5.6.11. btree_gc_coalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails. Se detectó un problema en el kernel de Linux versiones hasta 5.6.11. La función btree_gc_coalesce en el archivo drivers/md/bcache/btree.c, presenta un punto muerto si se produce un fallo de la operación de coalescencia. Timothy Michaud discovered that the i915 graphics driver in the Linux kernel did not properly validate user memory locations for the i915... • http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00071.html • CWE-667: Improper Locking •
CVSS: 4.7EPSS: 0%CPEs: 1EXPL: 2CVE-2019-20794
https://notcve.org/view.php?id=CVE-2019-20794
09 May 2020 — An issue was discovered in the Linux kernel 4.18 through 5.6.11 when unprivileged user namespaces are allowed. A user can create their own PID namespace, and mount a FUSE filesystem. Upon interaction with this FUSE filesystem, if the userspace component is terminated via a kill of the PID namespace's pid 1, it will result in a hung task, and resources being permanently locked up until system reboot. This can result in resource exhaustion. Se detectó un problema en el kernel de Linux versiones 4.18 hasta 5.6... • http://www.openwall.com/lists/oss-security/2020/08/24/1 • CWE-772: Missing Release of Resource after Effective Lifetime •
CVSS: 6.5EPSS: 0%CPEs: 35EXPL: 0CVE-2020-10690 – kernel: use-after-free in cdev_put() when a PTP device is removed while it's chardev is open
https://notcve.org/view.php?id=CVE-2020-10690
08 May 2020 — There is a use-after-free in kernel versions before 5.5 due to a race condition between the release of ptp_clock and cdev while resource deallocation. When a (high privileged) process allocates a ptp device file (like /dev/ptpX) and voluntarily goes to sleep. During this time if the underlying device is removed, it can cause an exploitable condition as the process wakes up to terminate and clean all attached files. The system crashes due to the cdev structure being invalid (as already freed) which is pointe... • http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html • CWE-416: Use After Free •
CVSS: 7.2EPSS: 0%CPEs: 17EXPL: 1CVE-2020-12659 – kernel: xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write which could result in crash and data coruption
https://notcve.org/view.php?id=CVE-2020-12659
05 May 2020 — An issue was discovered in the Linux kernel before 5.6.7. xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) because of a lack of headroom validation. Se detectó un problema en el kernel de Linux versiones anteriores a 5.6.7. En la función xdp_umem_reg en el archivo net/xdp/xdp_umem.c se presenta una escritura fuera de límites (por un usuario con la capacidad CAP_NET_ADMIN) debido a una falta de comprobación del headroom. An out-of-bounds (OOB) memory... • http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html • CWE-787: Out-of-bounds Write •
CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0CVE-2020-12657 – kernel: use-after-free in block/bfq-iosched.c related to bfq_idle_slice_timer_body
https://notcve.org/view.php?id=CVE-2020-12657
05 May 2020 — An issue was discovered in the Linux kernel before 5.6.5. There is a use-after-free in block/bfq-iosched.c related to bfq_idle_slice_timer_body. Se detectó un problema en el kernel de Linux versiones anteriores a 5.6.5. Se presenta un uso de la memoria previamente liberada en el archivo block/bfq-iosched.c relacionado con la función bfq_idle_slice_timer_body. A flaw was found in the Linux kernel's implementation of the BFQ IO scheduler. • http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html • CWE-416: Use After Free •