CVE-2023-6816 (GCVE-0-2023-6816)
Vulnerability from cvelistv5 – Published: 2024-01-18 04:31 – Updated: 2025-11-20 07:07
VLAI?
Title
Xorg-x11-server: heap buffer overflow in devicefocusevent and procxiquerypointer
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.
Severity ?
9.8 (Critical)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Red Hat | Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION |
Unaffected:
0:1.1.0-25.el6_10.13 , < *
(rpm)
cpe:/o:redhat:rhel_els:6 |
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Credits
Red Hat would like to thank Jan-Niklas Sohn (Trend Micro Zero Day Initiative) for reporting this issue.
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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