Astra Linux – Vulnerability in xorg-server

A flaw was discovered in xorg-x11-server in versions prior to 21.1.2 and prior to 1.20.14. An out-of-bounds access can occur in the SwapCreateRegister function. The greatest threat posed by this vulnerability is related to data confidentiality and integrity, as well as system availability...

Astra Linux – Vulnerability in xorg-server

A flaw was discovered in xorg-x11-server in versions prior to 21.1.2 and prior to 1.20.14. An out-of-bounds access can occur in the SProcXFixesCreatePointerBarrier function. The greatest threat posed by this vulnerability is related to data confidentiality and integrity, as well as system...

Astra Linux – Vulnerability in xorg-server

A vulnerability was discovered in X.Org. This security flaw arises because the XkbCopyNames function left a dangling pointer pointing to freed memory, allowing for out-of-bounds memory access during subsequent XkbGetKbdByName requests. This issue can lead to local privileges escalation on systems...

Astra Linux – Vulnerability in xorg-server

A flaw was discovered in xorg-x11-server in versions prior to 21.1.2 and prior to 1.20.14. An out-of-bounds access can occur in the SProcScreenSaverSuspend function. The greatest threat posed by this vulnerability is related to data confidentiality and integrity, as well as system availability...

Astra Linux – Vulnerability in xorg-server

A out-of-bounds write flaw was discovered in the xorg-x11-server. This issue arises due to an incorrect calculation of a buffer offset when copying data stored in the heap in the XIChangeDeviceProperty function in Xi/xiproperty.c, and in the RRChangeOutputProperty function in randr/rrproperty.c...

Astra Linux – Vulnerability in xorg-server

A flaw was discovered in xorg-server. Changing the actions of XKB buttons, such as moving between the touchpad and the mouse, can lead to out-of-bounds memory reads and writes. This may allow for local privilege escalation or potential remote code execution, especially in cases where X11 forwardi...

Astra Linux – Vulnerability in xorg-server

A use-after-free flaw was detected in xorg-x11-server-Xvfb. This issue occurs in Xvfb with a very specific and legacy configuration a multi-screen setup with multiple protocol screens, also known as Zaphod mode. If the pointer is moved from screen 1 to screen 0, a use-after-free issue may arise...

Astra Linux – Vulnerability in xorg-server, xwayland

A use-after-free flaw was discovered in X.Org and Xwayland. When a device is removed while it is still frozen, the events queued for that device remain active even after the device is freed. Playing back those events will lead to a use-after-free...

Astra Linux – Vulnerability in xorg-server

A flaw was discovered in xorg-server. A specially crafted request to RRChangeProviderProperty or RRChangeOutputProperty can trigger an integer overflow, which may lead to the disclosure of sensitive information...

Astra Linux – Vulnerability in xorg-server

A use-after-free flaw was detected in the xorg-x11-server. A X server crash may occur in a very specific and legacy configuration a multi-screen setup with multiple protocol screens, also known as Zaphod mode if the pointer is moved from one screen’s window to the root window of another screen, a...

Astra Linux – Vulnerability in xorg-server

A vulnerability was discovered 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 escalation on systems where X is used...

Astra Linux – Vulnerability in xorg-server

A vulnerability was discovered in X.Org. This security flaw arises because the handler for the ScreenSaverSetAttributes request may write to memory after it has been freed. This issue can lead to local privileges escalation on systems where the X server is running with privileged access, and may...

Astra Linux – Vulnerability in xorg-server

A vulnerability was discovered in X.Org. This security flaw arises 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 escalation on systems where the X server is running with...

Astra Linux – Vulnerability in xorg-server

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

Astra Linux – Vulnerability in xorg-server, xwayland

A heap-based buffer overflow vulnerability was discovered in the X.org server’s ProcXIPassiveGrabDevice function. This issue occurs when length values that are swapped in bytes are used in responses, potentially leading to memory leakage and segmentation faults, especially when triggered by a...

Astra Linux – Vulnerability in xorg-server

A use-after-free vulnerability was discovered in the ProcRenderAddGlyphs function of Xorg servers. This issue arises when the AllocateGlyph function is called to store new glyphs sent by the client to the X server. As a result, multiple entries may point to the same non-refcounted glyphs...

xwayland: xorg: X.Org X server: Information disclosure and denial of service via out-of-bounds read in XKB geometry processing.

A flaw was found in the X.Org X server. This out-of-bounds read vulnerability in the XKB geometry processing, specifically within the CheckSetGeom and XkbAddGeomKeyAlias functions, allows an attacker to read uninitialized or out-of-bounds memory. An attacker with a connection to the X11 server,...

xorg: xwayland: X.Org X server: Denial of Service via integer underflow in XKB compatibility map handling

A flaw was found in the X.Org X server. This integer underflow vulnerability, specifically in the XKB compatibility map handling, allows an attacker with local or remote X11 server access to trigger a buffer read overrun. This can lead to memory-safety violations and potentially a denial of servi...

xorg: xwayland: X.Org X server: Use-after-free vulnerability leads to server crash and potential memory corruption

A flaw was found in the X.Org X server. This use-after-free vulnerability occurs in the XSYNC fence triggering logic, specifically within the miSyncTriggerFence function. An attacker with access to the X11 server can exploit this without user interaction, leading to a server crash and potentially...

Important: Red Hat Security Advisory: xorg-x11-server-Xwayland security update

An update for xorg-x11-server-Xwayland is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each...