RHEL 9 : tigervnc (RHSA-2023:2257)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:2257 advisory. Virtual Network Computing VNC is a remote display system which allows users to view a computing desktop environment not only on the machine...

RHEL 9 : xorg-x11-server (RHSA-2023:2248)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:2248 advisory. X.Org is an open-source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical use...

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

A vulnerability was found in X.Org. The issue occurs because the handler for the XIChangeProperty request has a length-validation issue, resulting in out-of-bounds memory reads and potential information disclosure. This flaw can lead to local privilege elevation on systems where the X server runs...

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

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

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

A vulnerability was found in X.Org. This issue occurs because the XkbCopyNames function leaves a dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName requests. This flaw can lead to local privilege elevation on systems where the X server runs...

Moderate: Red Hat Security Advisory: tigervnc security and bug fix update

An update for tigervnc is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

xorg-x11-server: XTestSwapFakeInput stack overflow

A vulnerability was found in X.Org. The issue occurs due to the swap handler for the XTestFakeInput request of the XTest extension, possibly corrupting the stack if GenericEvents with lengths larger than 32 bytes are sent through the XTestFakeInput request. This flaw can lead to local privilege...

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

A vulnerability was found in X.Org. The issue occurs because the handler for the XIChangeProperty request has a length-validation issue, resulting in out-of-bounds memory reads and potential information disclosure. This flaw can lead to local privilege elevation on systems where the X server runs...

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

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

xorg-x11-server: memory leak in ProcXkbGetKbdByName() in xkb/xkb.c

A flaw was found in the xorg-x11-server package. The ProcXkbGetKbdByName function in xkb/xkb.c does not release allocated data when an error is encountered, allowing for a memory leak...

xorg-x11-server: buffer overflow in _GetCountedString() in xkb/xkb.c

A flaw was found in the xorg-x11-server package. A buffer overflow can occur in the GetCountedString function in xkb/xkb.c due to improper input validation, allowing for possible escalation of privileges, execution of arbitrary code, or a denial of service...

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...

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

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

xorg-x11-server: buffer overflow in _GetCountedString() in xkb/xkb.c

A flaw was found in the xorg-x11-server package. A buffer overflow can occur in the GetCountedString function in xkb/xkb.c due to improper input validation, allowing for possible escalation of privileges, execution of arbitrary code, or a denial of service...

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...

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

A vulnerability was found in X.Org. The issue occurs because the handler for the XIChangeProperty request has a length-validation issue, resulting in out-of-bounds memory reads and potential information disclosure. This flaw can lead to local privilege elevation on systems where the X server runs...

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

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

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

A vulnerability was found in X.Org. This issue occurs because the XkbCopyNames function leaves a dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName requests. This flaw can lead to local privilege elevation on systems where the X server runs...

Moderate: tigervnc security and bug fix update

Virtual Network Computing VNC is a remote display system which allows users to view a computing desktop environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. TigerVNC is a suite of VNC servers and clients...

ALSA-2023:2257 Moderate: tigervnc security and bug fix update

Virtual Network Computing VNC is a remote display system which allows users to view a computing desktop environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. TigerVNC is a suite of VNC servers and clients...