Vulnerabilities (CVE)

Filtered by vendor X.org Subscribe
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2021-31535 2 Fedoraproject, X.org 3 Fedora, Libx11, X Window System 2021-09-23 7.5 HIGH 9.8 CRITICAL
LookupCol.c in X.Org X through X11R7.7 and libX11 before 1.7.1 might allow remote attackers to execute arbitrary code. The libX11 XLookupColor request (intended for server-side color lookup) contains a flaw allowing a client to send color-name requests with a name longer than the maximum size allowed by the protocol (and also longer than the maximum packet size for normal-sized packets). The user-controlled data exceeding the maximum size is then interpreted by the server as additional X protocol requests and executed, e.g., to disable X server authorization completely. For example, if the victim encounters malicious terminal control sequences for color codes, then the attacker may be able to take full control of the running graphical session.
CVE-2018-14599 4 Canonical, Debian, Fedoraproject and 1 more 4 Ubuntu Linux, Debian Linux, Fedora and 1 more 2020-08-24 7.5 HIGH 9.8 CRITICAL
An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c is vulnerable to an off-by-one error caused by malicious server responses, leading to DoS or possibly unspecified other impact.
CVE-2017-12179 2 Debian, X.org 2 Debian Linux, Xorg-server 2019-10-09 7.5 HIGH 9.8 CRITICAL
xorg-x11-server before 1.19.5 was vulnerable to integer overflow in (S)ProcXIBarrierReleasePointer functions allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
CVE-2017-12177 2 Debian, X.org 2 Debian Linux, Xorg-server 2019-10-09 7.5 HIGH 9.8 CRITICAL
xorg-x11-server before 1.19.5 was vulnerable to integer overflow in ProcDbeGetVisualInfo function allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
CVE-2017-12178 2 Debian, X.org 2 Debian Linux, Xorg-server 2019-10-09 7.5 HIGH 9.8 CRITICAL
xorg-x11-server before 1.19.5 had wrong extra length check in ProcXIChangeHierarchy function allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
CVE-2017-12180 2 Debian, X.org 2 Debian Linux, Xorg-server 2019-10-09 7.5 HIGH 9.8 CRITICAL
xorg-x11-server before 1.19.5 was missing length validation in XFree86 VidModeExtension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
CVE-2017-12181 2 Debian, X.org 2 Debian Linux, Xorg-server 2019-10-09 7.5 HIGH 9.8 CRITICAL
xorg-x11-server before 1.19.5 was missing length validation in XFree86 DGA extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
CVE-2017-12182 2 Debian, X.org 2 Debian Linux, Xorg-server 2019-10-09 7.5 HIGH 9.8 CRITICAL
xorg-x11-server before 1.19.5 was missing length validation in XFree86 DRI extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
CVE-2017-12183 2 Debian, X.org 2 Debian Linux, Xorg-server 2019-10-09 7.5 HIGH 9.8 CRITICAL
xorg-x11-server before 1.19.5 was missing length validation in XFIXES extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
CVE-2017-12184 2 Debian, X.org 2 Debian Linux, Xorg-server 2019-10-09 7.5 HIGH 9.8 CRITICAL
xorg-x11-server before 1.19.5 was missing length validation in XINERAMA extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
CVE-2017-12185 2 Debian, X.org 2 Debian Linux, Xorg-server 2019-10-09 7.5 HIGH 9.8 CRITICAL
xorg-x11-server before 1.19.5 was missing length validation in MIT-SCREEN-SAVER extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
CVE-2017-12186 2 Debian, X.org 2 Debian Linux, Xorg-server 2019-10-09 7.5 HIGH 9.8 CRITICAL
xorg-x11-server before 1.19.5 was missing length validation in X-Resource extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
CVE-2017-12187 2 Debian, X.org 2 Debian Linux, Xorg-server 2019-10-09 7.5 HIGH 9.8 CRITICAL
xorg-x11-server before 1.19.5 was missing length validation in RENDER extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
CVE-2017-12176 2 Debian, X.org 2 Debian Linux, Xorg-server 2019-10-09 7.5 HIGH 9.8 CRITICAL
xorg-x11-server before 1.19.5 was missing extra length validation in ProcEstablishConnection function allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
CVE-2018-14600 3 Canonical, Debian, X.org 3 Ubuntu Linux, Debian Linux, Libx11 2019-08-06 7.5 HIGH 9.8 CRITICAL
An issue was discovered in libX11 through 1.6.5. The function XListExtensions in ListExt.c interprets a variable as signed instead of unsigned, resulting in an out-of-bounds write (of up to 128 bytes), leading to DoS or remote code execution.
CVE-2016-7942 2 Fedoraproject, X.org 2 Fedora, Libx11 2018-09-13 7.5 HIGH 9.8 CRITICAL
The XGetImage function in X.org libX11 before 1.6.4 might allow remote X servers to gain privileges via vectors involving image type and geometry, which triggers out-of-bounds read operations.
CVE-2016-7943 2 Fedoraproject, X.org 2 Fedora, Libx11 2018-09-13 7.5 HIGH 9.8 CRITICAL
The XListFonts function in X.org libX11 before 1.6.4 might allow remote X servers to gain privileges via vectors involving length fields, which trigger out-of-bounds write operations.
CVE-2016-7953 2 Fedoraproject, X.org 2 Fedora, Libxvmc 2017-07-01 7.5 HIGH 9.8 CRITICAL
Buffer underflow in X.org libXvMC before 1.0.10 allows remote X servers to have unspecified impact via an empty string.
CVE-2016-7948 2 Fedoraproject, X.org 2 Fedora, Libxrandr 2017-07-01 7.5 HIGH 9.8 CRITICAL
X.org libXrandr before 1.5.1 allows remote X servers to trigger out-of-bounds write operations by leveraging mishandling of reply data.
CVE-2016-7947 2 Fedoraproject, X.org 2 Fedora, Libxrandr 2017-07-01 7.5 HIGH 9.8 CRITICAL
Multiple integer overflows in X.org libXrandr before 1.5.1 allow remote X servers to trigger out-of-bounds write operations via a crafted response.
CVE-2016-7949 2 Fedoraproject, X.org 2 Fedora, Libxrender 2017-07-01 7.5 HIGH 9.8 CRITICAL
Multiple buffer overflows in the (1) XvQueryAdaptors and (2) XvQueryEncodings functions in X.org libXrender before 0.9.10 allow remote X servers to trigger out-of-bounds write operations via vectors involving length fields.
CVE-2016-7950 2 Fedoraproject, X.org 2 Fedora, Libxrender 2017-07-01 7.5 HIGH 9.8 CRITICAL
The XRenderQueryFilters function in X.org libXrender before 0.9.10 allows remote X servers to trigger out-of-bounds write operations via vectors involving filter name lengths.
CVE-2016-7944 2 Fedoraproject, X.org 2 Fedora, Libxfixes 2017-07-01 7.5 HIGH 9.8 CRITICAL
Integer overflow in X.org libXfixes before 5.0.3 on 32-bit platforms might allow remote X servers to gain privileges via a length value of INT_MAX, which triggers the client to stop reading data and get out of sync.
CVE-2016-5407 2 Fedoraproject, X.org 2 Fedora, Libxv 2017-07-01 7.5 HIGH 9.8 CRITICAL
The (1) XvQueryAdaptors and (2) XvQueryEncodings functions in X.org libXv before 1.0.11 allow remote X servers to trigger out-of-bounds memory access operations via vectors involving length specifications in received data.