Red Hat Security Advisory: kernel security update

Fixed packages 43

Vulnerabilities 6

• High 7.8
  CVE-2023-4622 Public exploit

  Use-after-free in Linux kernel's af_unix component

  A use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local privilege escalation. The unix_stream_sendpage() function tries to add data to the last skb in the peer's recv queue without locking the queue. Thus there…

  Linux kernel linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Sep 6, 2023
• High 7.8
  CVE-2023-5633

  Kernel: vmwgfx: reference count issue leads to use-after-free in surface handling

  The reference count changes made as part of the CVE-2023-33951 and CVE-2023-33952 fixes exposed a use-after-free flaw in the way memory objects were handled when they were being used to store a surface. When running inside a VMware guest with 3D acceleration …

  Red Hat Red Hat Enterprise Linux 9 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 7 Linux Debian Ubuntu Azure Linux
  Oct 23, 2023
• High 7.0
  CVE-2023-42753

  Kernel: netfilter: potential slab-out-of-bound access due to integer underflow

  An array indexing vulnerability was found in the netfilter subsystem of the Linux kernel. A missing macro could lead to a miscalculation of the `h->nets` array offset, providing attackers with the primitive to arbitrarily increment/decrement a memory buffer o…

  Red Hat Red Hat Enterprise Linux 9 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 7 Linux Debian Ubuntu Azure Linux
  Sep 25, 2023
• Medium 6.3
  CVE-2022-36402

  There is an int overflow vulnerability in vmwgfx driver

  An integer overflow vulnerability was found in vmwgfx driver in drivers/gpu/vmxgfx/vmxgfx_execbuf.c in GPU component of Linux kernel with device file '/dev/dri/renderD128 (or Dxxx)'. This flaw allows a local attacker with a user account on the system to gain …

  Linux kernel linux-raspi2 linux-hwe Linux Debian Ubuntu
  Sep 16, 2022
• Medium 5.5
  CVE-2023-2162

  A use-after-free vulnerability was found in iscsi_sw_tcp_session_create in drivers/scsi/iscsi_tcp.c in SCSI sub-compone…

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu Azure Linux
  Apr 19, 2023
• Unscored —
  CVE-2023-20569

  A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address prediction. …

  AMD 3rd Gen AMD EPYC™ Processors 2nd Gen AMD EPYC™ Processors 4th Gen AMD EPYC™ Processors Debian Ubuntu Alpine
  Aug 8, 2023

References

• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2187773
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2207625
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2237760
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2239843
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2245663
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2024/rhsa-2024_0113.json
• report
  https://access.redhat.com/security/cve/CVE-2022-36402
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2133451
• advisory
  https://www.cve.org/CVERecord?id=CVE-2022-36402
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2022-36402
• report
  https://access.redhat.com/security/cve/CVE-2023-2162
• advisory
  https://www.cve.org/CVERecord?id=CVE-2023-2162
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2023-2162
• article
  https://www.spinics.net/lists/linux-scsi/msg181542.html
• report
  https://access.redhat.com/security/cve/CVE-2023-4622
• advisory
  https://www.cve.org/CVERecord?id=CVE-2023-4622
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2023-4622
• article
  https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.1.y&id=790c2f9d15b594350ae9bca7b236f2b1859de02c
• report
  https://access.redhat.com/security/cve/CVE-2023-5633
• advisory
  https://www.cve.org/CVERecord?id=CVE-2023-5633
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2023-5633
• report
  https://access.redhat.com/security/cve/CVE-2023-20569
• advisory
  https://www.cve.org/CVERecord?id=CVE-2023-20569
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2023-20569
• article
  https://access.redhat.com/solutions/7049120
• article
  https://www.amd.com/content/dam/amd/en/documents/corporate/cr/speculative-return-stack-overflow-whitepaper.pdf
• article
  https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7005.html
• report
  https://access.redhat.com/security/cve/CVE-2023-42753
• advisory
  https://www.cve.org/CVERecord?id=CVE-2023-42753
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2023-42753
• article
  https://seclists.org/oss-sec/2023/q3/216