Red Hat Security Advisory: kernel security update

Fixed packages 81

Vulnerabilities 3

• High 8.8
  CVE-2023-52530

  wifi: mac80211: fix potential key use-after-free

  In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix potential key use-after-free When ieee80211_key_link() is called by ieee80211_gtk_rekey_add() but returns 0 due to KRACK protection (identical key reinstall), ieee80211_gt…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Mar 2, 2024
• High 7.0
  CVE-2023-51779

  bt_sock_recvmsg in net/bluetooth/af_bluetooth.c in the Linux kernel through 6.6.8 has a use-after-free because of a bt_…

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu Azure Linux
  Dec 25, 2023
• Medium 5.3
  CVE-2023-4155

  Sev-es / sev-snp vmgexit double fetch vulnerability

  A flaw was found in KVM AMD Secure Encrypted Virtualization (SEV) in the Linux kernel. A KVM guest using SEV-ES or SEV-SNP with multiple vCPUs can trigger a double fetch race condition vulnerability and invoke the `VMGEXIT` handler recursively. If an attacker…

  Red Hat Fedora Red Hat Enterprise Linux 9 Red Hat Enterprise Linux 8 Linux Debian Ubuntu Azure Linux
  Sep 13, 2023

References

• article
  https://access.redhat.com/security/updates/classification/#moderate
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2213802
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2256822
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2267787
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2024/rhsa-2024_3859.json
• report
  https://access.redhat.com/security/cve/CVE-2023-4155
• advisory
  https://www.cve.org/CVERecord?id=CVE-2023-4155
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2023-4155
• report
  https://access.redhat.com/security/cve/CVE-2023-51779
• advisory
  https://www.cve.org/CVERecord?id=CVE-2023-51779
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2023-51779
• article
  https://github.com/torvalds/linux/commit/2e07e8348ea454615e268222ae3fc240421be768
• report
  https://access.redhat.com/security/cve/CVE-2023-52530
• advisory
  https://www.cve.org/CVERecord?id=CVE-2023-52530
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2023-52530
• article
  https://lore.kernel.org/linux-cve-announce/2024030255-CVE-2023-52530-ebf0@gregkh/T/#u