Red Hat Security Advisory: kernel-rt security and bug fix update

Fixed packages 17

Vulnerabilities 9

• Medium 6.4
  CVE-2021-0920 Exploited

  In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to loc…

  linux-raspi2 linux-hwe linux-azure linux-riscv Android Debian Ubuntu
  Dec 15, 2021

  KEV May 23, 2022
• High 7.8
  CVE-2022-22942 Public exploit

  The vmwgfx driver contains a local privilege escalation vulnerability that allows unprivileged users to gain access to …

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu
  Dec 13, 2023
• Unscored —
  CVE-2020-0465

  In various methods of hid-multitouch.c, there is a possible out of bounds write due to a missing bounds check. This cou…

  linux-raspi2 linux-hwe linux-azure linux-riscv Android Debian Ubuntu
  Dec 14, 2020
• Unscored —
  CVE-2020-0466

  In do_epoll_ctl and ep_loop_check_proc of eventpoll.c, there is a possible use after free due to a logic error. This co…

  linux-raspi2 linux-hwe linux-azure linux-riscv Android Debian Ubuntu
  Dec 14, 2020
• Unscored —
  CVE-2021-3564

  A flaw double-free memory corruption in the Linux kernel HCI device initialization subsystem was found in the way user …

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu Azure Linux
  Jun 8, 2021
• Unscored —
  CVE-2021-3573

  A use-after-free in function hci_sock_bound_ioctl() of the Linux kernel HCI subsystem was found in the way user calls i…

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu Azure Linux
  Aug 13, 2021
• Unscored —
  CVE-2021-3752

  A use-after-free flaw was found in the Linux kernel’s Bluetooth subsystem in the way user calls connect to the socket a…

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu
  Feb 16, 2022
• Unscored —
  CVE-2021-4155

  A data leak flaw was found in the way XFS_IOC_ALLOCSP IOCTL in the XFS filesystem allowed for size increase of files wi…

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu Azure Linux
  Aug 24, 2022
• Unscored —
  CVE-2022-0330

  A random memory access flaw was found in the Linux kernel's GPU i915 kernel driver functionality in the way a user may …

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu Azure Linux
  Mar 25, 2022

References

• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1920471
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1920480
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1964139
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1966578
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=1999544
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2031930
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2034813
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2042404
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2044809
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2022/rhsa-2022_0622.json
• report
  https://access.redhat.com/security/cve/CVE-2020-0465
• advisory
  https://www.cve.org/CVERecord?id=CVE-2020-0465
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2020-0465
• report
  https://access.redhat.com/security/cve/CVE-2020-0466
• advisory
  https://www.cve.org/CVERecord?id=CVE-2020-0466
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2020-0466
• report
  https://access.redhat.com/security/cve/CVE-2021-0920
• advisory
  https://www.cve.org/CVERecord?id=CVE-2021-0920
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2021-0920
• article
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cbcf01128d0a92e131bd09f1688fe032480b65ca
• article
  https://www.cisa.gov/known-exploited-vulnerabilities-catalog
• report
  https://access.redhat.com/security/cve/CVE-2021-3564
• advisory
  https://www.cve.org/CVERecord?id=CVE-2021-3564
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2021-3564
• article
  https://www.openwall.com/lists/oss-security/2021/05/25/1
• report
  https://access.redhat.com/security/cve/CVE-2021-3573
• advisory
  https://www.cve.org/CVERecord?id=CVE-2021-3573
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2021-3573
• article
  https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git/commit/?id=e305509e678b3a4af2b3cfd410f409f7cdaabb52
• article
  https://www.openwall.com/lists/oss-security/2021/06/08/2
• report
  https://access.redhat.com/security/cve/CVE-2021-3752
• advisory
  https://www.cve.org/CVERecord?id=CVE-2021-3752
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2021-3752
• article
  https://lore.kernel.org/lkml/20211115165435.133245729@linuxfoundation.org/
• article
  https://www.openwall.com/lists/oss-security/2021/09/15/4
• report
  https://access.redhat.com/security/cve/CVE-2021-4155
• advisory
  https://www.cve.org/CVERecord?id=CVE-2021-4155
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2021-4155