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

Fixed packages 28

Vulnerabilities 3

• High 7.8
  CVE-2023-3090

  Out-of-bounds write in Linux kernel's ipvlan network driver

  A heap out-of-bounds write vulnerability in the Linux Kernel ipvlan network driver can be exploited to achieve local privilege escalation. The out-of-bounds write is caused by missing skb->cb initialization in the ipvlan network driver. The vulnerability is r…

  Linux kernel linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jun 28, 2023
• High 7.8
  CVE-2023-35788 Public exploit

  An issue was discovered in fl_set_geneve_opt in net/sched/cls_flower.c in the Linux kernel before 6.3.7. It allows an o…

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu Azure Linux
  Jun 16, 2023
• Unscored —
  CVE-2023-2124

  An out-of-bounds memory access flaw was found in the Linux kernel’s XFS file system in how a user restores an XFS image…

  linux-raspi2 linux-hwe linux-azure linux-riscv Debian Ubuntu Azure Linux
  May 15, 2023

References

• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2187439
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2215768
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2218672
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2023/rhsa-2023_4817.json
• report
  https://access.redhat.com/security/cve/CVE-2023-2124
• advisory
  https://www.cve.org/CVERecord?id=CVE-2023-2124
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2023-2124
• article
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/xfs/xfs_buf_item_recover.c?h=v6.4-rc1&id=22ed903eee23a5b174e240f1cdfa9acf393a5210
• article
  https://lore.kernel.org/linux-xfs/20230412214034.GL3223426@dread.disaster.area/T/#m1ebbcd1ad061d2d33bef6f0534a2b014744d152d
• report
  https://access.redhat.com/security/cve/CVE-2023-3090
• advisory
  https://www.cve.org/CVERecord?id=CVE-2023-3090
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2023-3090
• report
  https://access.redhat.com/security/cve/CVE-2023-35788
• advisory
  https://www.cve.org/CVERecord?id=CVE-2023-35788
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2023-35788
• article
  https://www.openwall.com/lists/oss-security/2023/06/07/1