CVE-2023-6816

Summary

A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for each logical button currently down. Buttons can be arbitrarily mapped to any value up to 255, but the X.Org Server was only allocating space for the device's particular number of buttons, leading to a heap overflow if a bigger value was used.

Affected Software

VendorProductVersion RangeStatus
Red HatRed Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION0:1.1.0-25.el6_10.13 < *unaffected
Red HatRed Hat Enterprise Linux 70:1.20.4-27.el7_9 < *unaffected
Red HatRed Hat Enterprise Linux 70:1.8.0-31.el7_9 < *unaffected
Red HatRed Hat Enterprise Linux 80:1.13.1-2.el8_9.7 < *unaffected
Red HatRed Hat Enterprise Linux 80:1.20.11-22.el8 < *unaffected
Red HatRed Hat Enterprise Linux 80:21.1.3-15.el8 < *unaffected
Red HatRed Hat Enterprise Linux 8.2 Advanced Update Support0:1.9.0-15.el8_2.9 < *unaffected
Red HatRed Hat Enterprise Linux 8.2 Telecommunications Update Service0:1.9.0-15.el8_2.9 < *unaffected
Red HatRed Hat Enterprise Linux 8.2 Update Services for SAP Solutions0:1.9.0-15.el8_2.9 < *unaffected
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support0:1.11.0-8.el8_4.8 < *unaffected
Red HatRed Hat Enterprise Linux 8.4 Telecommunications Update Service0:1.11.0-8.el8_4.8 < *unaffected
Red HatRed Hat Enterprise Linux 8.4 Update Services for SAP Solutions0:1.11.0-8.el8_4.8 < *unaffected
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support0:1.12.0-6.el8_6.9 < *unaffected
Red HatRed Hat Enterprise Linux 8.8 Extended Update Support0:1.12.0-15.el8_8.7 < *unaffected
Red HatRed Hat Enterprise Linux 90:1.13.1-3.el9_3.6 < *unaffected
Red HatRed Hat Enterprise Linux 90:1.20.11-24.el9 < *unaffected
Red HatRed Hat Enterprise Linux 90:22.1.9-5.el9 < *unaffected
Red HatRed Hat Enterprise Linux 9.0 Extended Update Support0:1.11.0-22.el9_0.8 < *unaffected
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support0:1.12.0-14.el9_2.5 < *unaffected

Weaknesses

  • CWE-787: Out-of-bounds Write

Workarounds

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References