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Vulnerability record · CVE-2014-8101 · published 10 December 2014

CVE-2014-8101: X.org xfree86 memory buffer overflow vulnerability

XX.Org · Xfree86

The RandR extension in XFree86 4.2.0, X.Org X Window System (aka X11 or X) X11R6.7, and X.Org Server (aka xserver and xorg-server) before 1.16.3 allows remote authenticated users to cause a denial of service (out-of-bounds read or write) or possibly execute arbitrary code via a crafted length or index value to the (1) SProcRRQueryVersion, (2) SProcRRGetScreenInfo, (3) SProcRRSelectInput, or (4) SProcRRConfigureOutputProperty function.

6.5 CVSS 2.0 Medium EPSS 4.4% · top 9.1% CWE-119 · Memory buffer overflow
6.5CVSS 2.0 base score
4.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
20References
17 Jun 2026Last modified by NVD

Description

The RandR extension in XFree86 4.2.0, X.Org X Window System (aka X11 or X) X11R6.7, and X.Org Server (aka xserver and xorg-server) before 1.16.3 allows remote authenticated users to cause a denial of service (out-of-bounds read or write) or possibly execute arbitrary code via a crafted length or index value to the (1) SProcRRQueryVersion, (2) SProcRRGetScreenInfo, (3) SProcRRSelectInput, or (4) SProcRRConfigureOutputProperty function.

AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2012-2118X.org x11 improper input validation vulnerabilityFormat string vulnerability in the LogVHdrMessageVerb function in os/log.c in X.Org X11 1.11 allows attackers to cause a denial of service or possibl…EPSS 2.7%10.0CVE-1999-0526X.org x11 vulnerabilityAn X server's access control is disabled (e.g. through an "xhost +" command) and allows anyone to connect to the server.EPSS 21%9.8CVE-2023-6816X.org x server out-of-bounds write vulnerabilityA flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for each logical button currently down. Buttons ca…EPSS 2.1%9.8CVE-2017-12176Debian linux improper input validation vulnerabilityxorg-x11-server before 1.19.5 was missing extra length validation in ProcEstablishConnection function allowing malicious X client to cause X server t…EPSS 4.2%9.8CVE-2017-12177Debian linux integer overflow vulnerabilityxorg-x11-server before 1.19.5 was vulnerable to integer overflow in ProcDbeGetVisualInfo function allowing malicious X client to cause X server to cr…EPSS 4.4%9.8CVE-2017-12178Debian linux improper input validation vulnerabilityxorg-x11-server before 1.19.5 had wrong extra length check in ProcXIChangeHierarchy function allowing malicious X client to cause X server to crash o…EPSS 4.2%9.8CVE-2017-12179Debian linux integer overflow vulnerabilityxorg-x11-server before 1.19.5 was vulnerable to integer overflow in (S)ProcXIBarrierReleasePointer functions allowing malicious X client to cause X s…EPSS 4.4%9.8CVE-2017-12180Debian linux improper input validation vulnerabilityxorg-x11-server before 1.19.5 was missing length validation in XFree86 VidModeExtension allowing malicious X client to cause X server to crash or pos…EPSS 4.2%

Source: NIST National Vulnerability Database (record CVE-2014-8101), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.