Red Hat Security Advisory: tigervnc security update

Fixed packages 30

Vulnerabilities 2

• High 7.8
  CVE-2023-5367

  Xorg-x11-server: out-of-bounds write in xichangedeviceproperty/rrchangeoutputproperty

  A out-of-bounds write flaw was found in the xorg-x11-server. This issue occurs due to an incorrect calculation of a buffer offset when copying data stored in the heap in the XIChangeDeviceProperty function in Xi/xiproperty.c and in RRChangeOutputProperty func…

  Red Hat Red Hat Enterprise Linux 9 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 7 Linux Debian Ubuntu Azure Linux Alpine
  Oct 25, 2023
• Medium 4.7
  CVE-2023-5380

  Xorg-x11-server: use-after-free bug in destroywindow

  A use-after-free flaw was found in the xorg-x11-server. An X server crash may occur in a very specific and legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode) if the pointer is warped from within a window on o…

  Red Hat Red Hat Enterprise Linux 9 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 7 Linux Debian Ubuntu Azure Linux Alpine
  Oct 25, 2023

References

• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2243091
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2244736
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2023/rhsa-2023_7428.json
• report
  https://access.redhat.com/security/cve/CVE-2023-5367
• advisory
  https://www.cve.org/CVERecord?id=CVE-2023-5367
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2023-5367
• article
  https://lists.x.org/archives/xorg-announce/2023-October/003430.html
• report
  https://access.redhat.com/security/cve/CVE-2023-5380
• advisory
  https://www.cve.org/CVERecord?id=CVE-2023-5380
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2023-5380