Vulnerabilities (CVE)

Filtered by vendor X.org Subscribe
Total 144 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2020-14346 3 Canonical, Redhat, X.org 3 Ubuntu Linux, Enterprise Linux, Xorg-server 2023-12-10 4.6 MEDIUM 7.8 HIGH
A flaw was found in xorg-x11-server before 1.20.9. An integer underflow in the X input extension protocol decoding in the X server may lead to arbitrary access of memory contents. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
CVE-2020-14347 3 Canonical, Debian, X.org 3 Ubuntu Linux, Debian Linux, Xorg-server 2023-12-10 2.1 LOW 5.5 MEDIUM
A flaw was found in the way xserver memory was not properly initialized. This could leak parts of server memory to the X client. In cases where Xorg server runs with elevated privileges, this could result in possible ASLR bypass. Xorg-server before version 1.20.9 is vulnerable.
CVE-2020-14361 3 Canonical, Redhat, X.org 3 Ubuntu Linux, Enterprise Linux, Xorg-server 2023-12-10 4.6 MEDIUM 7.8 HIGH
A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Integer underflow leading to heap-buffer overflow may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
CVE-2020-14344 4 Canonical, Fedoraproject, Opensuse and 1 more 4 Ubuntu Linux, Fedora, Leap and 1 more 2023-12-10 4.6 MEDIUM 6.7 MEDIUM
An integer overflow leading to a heap-buffer overflow was found in The X Input Method (XIM) client was implemented in libX11 before version 1.6.10. As per upstream this is security relevant when setuid programs call XIM client functions while running with elevated privileges. No such programs are shipped with Red Hat Enterprise Linux.
CVE-2020-14345 2 Canonical, X.org 2 Ubuntu Linux, X Server 2023-12-10 4.6 MEDIUM 7.8 HIGH
A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Out-Of-Bounds access in XkbSetNames function may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
CVE-2019-17624 1 X.org 1 X Server 2023-12-10 4.6 MEDIUM 7.8 HIGH
"" In X.Org X Server 1.20.4, there is a stack-based buffer overflow in the function XQueryKeymap. For example, by sending ct.c_char 1000 times, an attacker can cause a denial of service (application crash) or possibly have unspecified other impact. Note: It is disputed if the X.Org X Server is involved or if there is a stack overflow.
CVE-2018-14598 4 Canonical, Debian, Fedoraproject and 1 more 4 Ubuntu Linux, Debian Linux, Fedora and 1 more 2023-12-10 5.0 MEDIUM 7.5 HIGH
An issue was discovered in XListExtensions in ListExt.c in libX11 through 1.6.5. A malicious server can send a reply in which the first string overflows, causing a variable to be set to NULL that will be freed later on, leading to DoS (segmentation fault).
CVE-2018-14599 5 Canonical, Debian, Fedoraproject and 2 more 7 Ubuntu Linux, Debian Linux, Fedora and 4 more 2023-12-10 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-2017-2624 2 Debian, X.org 2 Debian Linux, Xorg-server 2023-12-10 1.9 LOW 7.0 HIGH
It was found that xorg-x11-server before 1.19.0 including uses memcmp() to check the received MIT cookie against a series of valid cookies. If the cookie is correct, it is allowed to attach to the Xorg session. Since most memcmp() implementations return after an invalid byte is seen, this causes a time difference between a valid and invalid byte, which could allow an efficient brute force attack.
CVE-2017-2625 2 Redhat, X.org 7 Enterprise Linux, Enterprise Linux Desktop, Enterprise Linux Server and 4 more 2023-12-10 2.1 LOW 5.5 MEDIUM
It was discovered that libXdmcp before 1.1.2 including used weak entropy to generate session keys. On a multi-user system using xdmcp, a local attacker could potentially use information available from the process list to brute force the key, allowing them to hijack other users' sessions.
CVE-2018-14665 4 Canonical, Debian, Redhat and 1 more 9 Ubuntu Linux, Debian Linux, Enterprise Linux Desktop and 6 more 2023-12-10 7.2 HIGH 6.6 MEDIUM
A flaw was found in xorg-x11-server before 1.20.3. An incorrect permission check for -modulepath and -logfile options when starting Xorg. X server allows unprivileged users with the ability to log in to the system via physical console to escalate their privileges and run arbitrary code under root privileges.
CVE-2018-14600 3 Canonical, Debian, X.org 3 Ubuntu Linux, Debian Linux, Libx11 2023-12-10 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-2017-12178 2 Debian, X.org 2 Debian Linux, Xorg-server 2023-12-10 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-2017-12184 2 Debian, X.org 2 Debian Linux, Xorg-server 2023-12-10 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-2017-12181 2 Debian, X.org 2 Debian Linux, Xorg-server 2023-12-10 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-2017-12185 2 Debian, X.org 2 Debian Linux, Xorg-server 2023-12-10 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-2017-12176 2 Debian, X.org 2 Debian Linux, Xorg-server 2023-12-10 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-2017-12180 2 Debian, X.org 2 Debian Linux, Xorg-server 2023-12-10 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-2017-12186 2 Debian, X.org 2 Debian Linux, Xorg-server 2023-12-10 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-2017-12179 2 Debian, X.org 2 Debian Linux, Xorg-server 2023-12-10 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.