Astra Linux – Vulnerability in xorg-server

A stack-based buffer overflow vulnerability was discovered in the X.Org X server and Xwayland. A mismatch between the X server’s requirements and the maximum font name length supported by the libXfont2 library can lead to a stack buffer overflow during font alias resolution. The X server allocate...

Astra Linux – Vulnerability in xwayland, xorg-server

A flaw was discovered in the XFIXES extension. The XFixesSetClientDisconnectMode handler does not validate the request length, allowing a client to read unintended memory from previous requests...

Astra Linux – Vulnerability in xorg-server, xwayland

A heap overflow flaw was discovered in X.Org and Xwayland. The calculation of the length in XkbSizeKeySyms differs from what is stored in XkbWriteKeySyms, which may lead to a heap-based buffer overflow...

Astra Linux – Vulnerability in xorg-server, xwayland

A buffer overflow vulnerability was discovered in X.Org and Xwayland. The code in XkbVModMaskText allocates a fixed-sized buffer on the stack and copies the names of the virtual modifiers to that buffer. The code fails to check the bounds of the buffer and will copy the data regardless of the siz...

Astra Linux – Vulnerability in xorg-server

A out-of-bounds write flaw was discovered in the X.Org X server and Xwayland within DRIGetBuffers/DRIGetBuffersWithFormat. A client that requests multiple DRI2BufferBackLeft attachments and one DRI2BufferFrontLeft can trigger a out-of-bounds heap write. This vulnerability could be exploited to...

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...

Astra Linux – Vulnerability in xorg-server, xwayland

A flaw related to accessing an uninitialized pointer was discovered in X.Org and Xwayland. The compCheckRedirect function may fail if it cannot allocate the backing pixmap. In such cases, compRedirectWindow will return a BadAlloc error without validating the window tree just before processing; as...

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 flaw was discovered in the Xorg-x11-server. The specific flaw lies in the handling of ProcXkbSetDeviceInfo requests. The issue arises due to the lack of proper validation of user-provided data, which can lead to a memory access beyond the allocated buffer’s limit. This flaw allows an attacker t...

Astra Linux – Vulnerability in xorg-server

In the X.Org X Server versions 20.11 through 21.1.16, when a client application uses easystroke for mouse gestures, the main thread modifies various data structures used by the input thread without acquiring a lock, which is known as a race condition. Specifically, the AttachDevice function in...

Astra Linux – Vulnerability in xorg-server

A stack-based buffer overflow vulnerability was discovered in the X.Org X server and Xwayland. The XkbSetMapChecks function declares a fixed-size stack buffer, mapWidths256, indexed by key type index. The helper function CheckKeyTypes writes to this buffer at a position controlled by the client,...

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 use-after-free flaw was discovered in the X.Org X server and Xwayland within the FreeCounter function. A client that sets up multiple SyncCounters and waits for those triggers can trigger a use-after-free when destroying those counters through a second client connection. This could potentially...

Astra Linux – Vulnerability in xorg-server

A out-of-bounds read flaw was discovered in the X.Org X server and Xwayland within the glXDispChangeDrawableAttributes function. A incorrect size validation check allows a client-controlled number of bytes to be read, exceeding the request buffer, resulting in information disclosure. A write path...

Astra Linux – Vulnerability in xorg-server

A vulnerability, which was classified as problematic, has been identified in the X.org Server. The affected component is the function ProcXkbGetKbdByName in the file xkb/xkb.c. This vulnerability causes a memory leak. It is recommended that a patch be applied to address this issue. The identifier...

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

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 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 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 flaw related to out-of-bounds memory access was discovered in the X.Org server. This issue can occur when a device that has been frozen by a sync operation is reattached to a different master device. This issue may result in an application crashing, local privilege escalation if the server runs...