Red Hat Security Advisory: kernel security and bug fix update

Fixed packages 43

Vulnerabilities 10

• Medium 5.5
  CVE-2020-10766

  A logic bug flaw was found in Linux kernel before 5.8-rc1 in the implementation of SSBD. A bug in the logic handling al…

  Linux kernel kernel linux-raspi2 linux-hwe Debian Ubuntu
  Sep 15, 2020
• Medium 5.5
  CVE-2020-10767

  A flaw was found in the Linux kernel before 5.8-rc1 in the implementation of the Enhanced IBPB (Indirect Branch Predict…

  Linux kernel kernel linux-raspi2 linux-hwe Debian Ubuntu
  Sep 15, 2020
• Medium 5.5
  CVE-2020-10768

  A flaw was found in the Linux Kernel before 5.8-rc1 in the prctl() function, where it can be used to enable indirect br…

  Linux kernel kernel linux-raspi2 linux-hwe Debian Ubuntu
  Sep 15, 2020
• Unscored —
  CVE-2019-19807

  In the Linux kernel before 5.3.11, sound/core/timer.c has a use-after-free caused by erroneous code refactoring, aka CI…

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu
  Dec 15, 2019
• Unscored —
  CVE-2019-20908

  An issue was discovered in drivers/firmware/efi/efi.c in the Linux kernel before 5.4. Incorrect access permissions for …

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu
  Jul 15, 2020
• Unscored —
  CVE-2020-10757 Public exploit

  A flaw was found in the Linux Kernel in versions after 4.5-rc1 in the way mremap handled DAX Huge Pages. This flaw allo…

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu
  Jun 9, 2020
• Unscored —
  CVE-2020-12653

  An issue was found in Linux kernel before 5.5.4. The mwifiex_cmd_append_vsie_tlv() function in drivers/net/wireless/mar…

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu
  May 5, 2020
• Unscored —
  CVE-2020-12654

  An issue was found in Linux kernel before 5.5.4. mwifiex_ret_wmm_get_status() in drivers/net/wireless/marvell/mwifiex/w…

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu
  May 5, 2020
• Unscored —
  CVE-2020-12888

  The VFIO PCI driver in the Linux kernel through 5.6.13 mishandles attempts to access disabled memory space.

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu
  May 15, 2020
• Unscored —
  CVE-2020-15780 Public exploit

  An issue was discovered in drivers/acpi/acpi_configfs.c in the Linux kernel before 5.7.7. Injection of malicious ACPI t…

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu
  Jul 15, 2020

References

• article
  https://access.redhat.com/security/updates/classification/#important
• article
  https://access.redhat.com/security/vulnerabilities/grub2bootloader
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1786078
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1831868
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1832530
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1836244
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1842525
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1845840
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1845867
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1845868
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1852942
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1852962
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_3222.json
• report
  https://access.redhat.com/security/cve/CVE-2019-19807
• advisory
  https://www.cve.org/CVERecord?id=CVE-2019-19807
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2019-19807
• report
  https://access.redhat.com/security/cve/CVE-2019-20908
• advisory
  https://www.cve.org/CVERecord?id=CVE-2019-20908
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2019-20908
• article
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1957a85b0032a81e6482ca4aab883643b8dae06e
• article
  https://git.zx2c4.com/american-unsigned-language/tree/american-unsigned-language.sh
• article
  https://lore.kernel.org/linux-efi/20200615202408.2242614-1-pjones@redhat.com/
• article
  https://www.openwall.com/lists/oss-security/2020/06/14/1
• report
  https://access.redhat.com/security/cve/CVE-2020-10757
• advisory
  https://www.cve.org/CVERecord?id=CVE-2020-10757
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2020-10757
• article
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5bfea2d9b17f1034a68147a8b03b9789af5700f9
• article
  https://www.openwall.com/lists/oss-security/2020/06/04/4
• report
  https://access.redhat.com/security/cve/CVE-2020-10766
• advisory
  https://www.cve.org/CVERecord?id=CVE-2020-10766
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2020-10766
• article
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dbbe2ad02e9df26e372f38cc3e70dab9222c832e
• report
  https://access.redhat.com/security/cve/CVE-2020-10767
• advisory
  https://www.cve.org/CVERecord?id=CVE-2020-10767
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2020-10767
• article
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=21998a351512eba4ed5969006f0c55882d995ada
• report
  https://access.redhat.com/security/cve/CVE-2020-10768
• advisory
  https://www.cve.org/CVERecord?id=CVE-2020-10768
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2020-10768