CVE-2018-14665

xorg-x11-server: Incorrect permission check in Xorg X server allows for privilege escalation

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.

CVSS 3.0 · 6.6 Medium EPSS 27.2% KEV · Not listed

Vendors

Canonical Debian Redhat and 1 more

Products

Ubuntu Linux Debian Linux Enterprise Linux and 7 more

CVE-2020-14346

xorg-x11-server: Integer underflow in the X input extension protocol

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.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Canonical Redhat X.org

Products

Ubuntu Linux Enterprise Linux X Server

CVE-2020-14347

xorg-x11-server: Leak of uninitialized heap memory from the X server to clients in AllocatePixmap of dix/pixmap.c

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.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Canonical Debian Redhat and 1 more

Products

Ubuntu Linux Debian Linux Enterprise Linux and 1 more

CVE-2020-14361

xorg-x11-server: XkbSelectEvents integer underflow privilege escalation vulnerability

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.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Canonical Redhat X.org

Products

Ubuntu Linux Enterprise Linux X Server

CVE-2020-14362

xorg-x11-server: XRecordRegisterClients integer underflow privilege escalation vulnerability

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.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Canonical Redhat X.org

Products

Ubuntu Linux Enterprise Linux X Server

CVE-2022-2319

xorg-x11-server: X.Org Server ProcXkbSetGeometry out-of-bounds access

A flaw was found in the Xorg-x11-server. An out-of-bounds access issue can occur in the ProcXkbSetGeometry function due to improper validation of the request length.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Redhat X.org

Products

Enterprise Linux X Server

CVE-2022-4283

xorg-x11-server: XkbGetKbdByName use-after-free

A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName requests.. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions.

CVSS 3.1 · 7.8 High EPSS 1.1% KEV · Not listed

Vendors

Debian Fedoraproject Redhat and 1 more

Products

Debian Linux Fedora Enterprise Linux and 1 more

CVE-2022-46343

xorg-x11-server: ScreenSaverSetAttributes use-after-free

A vulnerability was found in X.Org. This security flaw occurs because the handler for the ScreenSaverSetAttributes request may write to memory after it has been freed. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions.

CVSS 3.1 · 8.8 High EPSS 2.6% KEV · Not listed

Vendors

Debian Fedoraproject Redhat and 1 more

Products

Debian Linux Fedora Enterprise Linux and 1 more

CVE-2022-46342

xorg-x11-server: XvdiSelectVideoNotify use-after-free

A vulnerability was found in X.Org. This security flaw occurs because the handler for the XvdiSelectVideoNotify request may write to memory after it has been freed. This issue can lead to local privileges elevation on systems where the X se

CVSS 3.1 · 8.8 High EPSS 1.4% KEV · Not listed

Vendors

Debian Fedoraproject Redhat and 1 more

Products

Debian Linux Fedora Enterprise Linux and 1 more

CVE-2022-46341

xorg-x11-server: XIPassiveUngrab out-of-bounds access

A vulnerability was found in X.Org. This security flaw occurs because the handler for the XIPassiveUngrab request accesses out-of-bounds memory when invoked with a high keycode or button code. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions.

CVSS 3.1 · 8.8 High EPSS 2.7% KEV · Not listed

Vendors

Debian Fedoraproject Redhat and 1 more

Products

Debian Linux Fedora Enterprise Linux and 1 more

CVE-2022-3553

X.org Server xquartz X11Controller.m denial of service

A vulnerability, which was classified as problematic, was found in X.org Server. This affects an unknown part of the file hw/xquartz/X11Controller.m of the component xquartz. The manipulation leads to denial of service. It is recommended to apply a patch to fix this issue. The identifier VDB-211053 was assigned to this vulnerability.

CVSS 3.1 · 3.5 Low EPSS 1.7% KEV · Not listed

Vendors

X.org

Products

X Server

CVE-2011-4028

xorg-x11-server: File existence disclosure vulnerability

The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to determine the existence of arbitrary files via a symlink attack on a temporary lock file, which is handled differently if the file exists.

CVSS 2.0 · 1.2 Low EPSS < 1% KEV · Not listed

Vendors

Redhat X.org

Products

Enterprise Linux X Server

CVE-2011-4613

xorg-x11-server: wrapper security bypass

The X.Org X wrapper (xserver-wrapper.c) in Debian GNU/Linux and Ubuntu Linux does not properly verify the TTY of a user who is starting X, which allows local users to bypass intended access restrictions by associating stdin with a file that is misinterpreted as the console TTY.

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed

Vendors

Canonical Debian Ubuntu and 1 more

Products

Ubuntu Linux Debian Linux Linux and 1 more

CVE-2011-4029

xorg-x11-server: lock file chmod change race condition

The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to change the permissions of arbitrary files to 444, read those files, and possibly cause a denial of service (removed execution permission) via a symlink attack on a temporary lock file.

CVSS 2.0 · 1.9 Low EPSS < 1% KEV · Not listed

Vendors

Redhat X.org

Products

Enterprise Linux X Server

CVE-2023-0494

xorg-x11-server: DeepCopyPointerClasses use-after-free leads to privilege elevation

A vulnerability was found in X.Org. This issue occurs due to a dangling pointer in DeepCopyPointerClasses that can be exploited by ProcXkbSetDeviceInfo() and ProcXkbGetDeviceInfo() to read and write into freed memory. This can lead to local privilege elevation on systems where the X server runs privileged and remote code execution for ssh X forwarding sessions.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Fedoraproject Redhat X.org

Products

Fedora Enterprise Linux Enterprise Linux Aus and 19 more

CVE-2022-46344

xorg-x11-server: XIChangeProperty out-of-bounds access

A vulnerability was found in X.Org. This security flaw occurs because the handler for the XIChangeProperty request has a length-validation issues, resulting in out-of-bounds memory reads and potential information disclosure. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions.

CVSS 3.1 · 8.8 High EPSS 2.9% KEV · Not listed

Vendors

Debian Fedoraproject Redhat and 1 more

Products

Debian Linux Fedora Enterprise Linux and 1 more

CVE-2021-4011

xorg-x11-server: SwapCreateRegister out-of-bounds access

A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in the SwapCreateRegister function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Debian Fedoraproject Redhat and 1 more

Products

Debian Linux Fedora Enterprise Linux and 1 more

CVE-2021-4010

xorg-x11-server: SProcScreenSaverSuspend out-of-bounds access

A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in the SProcScreenSaverSuspend function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Debian Fedoraproject Redhat and 1 more

Products

Debian Linux Fedora Enterprise Linux and 1 more

CVE-2021-4009

xorg-x11-server: SProcXFixesCreatePointerBarrier out-of-bounds access

A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in the SProcXFixesCreatePointerBarrier function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Debian Fedoraproject Redhat and 1 more

Products

Debian Linux Fedora Enterprise Linux and 1 more

CVE-2021-4008

xorg-x11-server: SProcRenderCompositeGlyphs out-of-bounds access

A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in the SProcRenderCompositeGlyphs function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Debian Fedoraproject Redhat and 1 more

Products

Debian Linux Fedora Enterprise Linux and 1 more