Detections
Analytics
MiracleLinux 7 : xorg-x11-server-1.20.4-99.0.1.el7.AXS7 (AXSA:2025-10843:03)
high Nessus Plugin ID 283137
Synopsis
The remote MiracleLinux host is missing one or more security updates.Description
The remote MiracleLinux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2025-10843:03 advisory.* CVE-2025-26594: refuse to free the root cursor and keep its ref
* CVE-2025-26595: fix buffer overflow in XkbVModMaskText()
* CVE-2025-26596: xkb: fix computation of XkbSizeKeySyms
* CVE-2025-26597: xkb: fix buffer overflow in XkbChangeTypesOfKey()
* CVE-2025-26598: Xi: Fix barrier device search
* CVE-2025-26599: always initialize the border clip in compAllocPixmap()
* CVE-2025-26600: dix: Dequeue pending events on frozen device on removal
* CVE-2025-26601: postpone actual changes in SyncChangeAlarmAttributes() CVE(s):
CVE-2025-26601 A use-after-free flaw was found in X.Org and Xwayland. When changing an alarm, the values of the change mask are evaluated one after the other, changing the trigger values as requested, and eventually, SyncInitTrigger() is called. If one of the changes triggers an error, the function will return early, not adding the new sync object, possibly causing a use-after-free when the alarm eventually triggers.
CVE-2025-26598 An out-of-bounds write flaw was found in X.Org and Xwayland. The function GetBarrierDevice() searches for the pointer device based on its device ID and returns the matching value, or supposedly NULL, if no match was found. However, the code will return the last element of the list if no matching device ID is found, which can lead to out-of-bounds memory access.
CVE-2025-26597 A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey() is called with a 0 group, it will resize the key symbols table to 0 but leave the key actions unchanged. If the same function is later called with a non-zero value of groups, this will cause a buffer overflow because the key actions are of the wrong size.
CVE-2025-26596 A heap overflow flaw was found in X.Org and Xwayland. The computation of the length in XkbSizeKeySyms() differs from what is written in XkbWriteKeySyms(), which may lead to a heap-based buffer overflow.
CVE-2025-26595 A buffer overflow flaw was found 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 would copy the data regardless of the size.
CVE-2025-26600 A use-after-free flaw was found in X.Org and Xwayland. When a device is removed while still frozen, the events queued for that device remain while the device is freed. Replaying the events will cause a use- after-free.
CVE-2025-26594 A use-after-free flaw was found in X.Org and Xwayland. The root cursor is referenced in the X server as a global variable. If a client frees the root cursor, the internal reference points to freed memory and causes a use-after-free.
CVE-2025-26599 An access to an uninitialized pointer flaw was found in X.Org and Xwayland. The function compCheckRedirect() may fail if it cannot allocate the backing pixmap. In that case, compRedirectWindow() will return a BadAlloc error without validating the window tree marked just before, which leaves the validated data partly initialized and the use of an uninitialized pointer later.
Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
Plugin Details
Severity: High
ID: 283137
File Name: miracle_linux_AXSA-2025-10843.nasl
Version: 1.1
Type: local
Published: 1/13/2026
Updated: 1/13/2026
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
Vendor
Vendor Severity: High
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5
Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
CVSS Score Source: CVE-2025-26601
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 6.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:miracle:linux:xorg-x11-server-xephyr, p-cpe:/a:miracle:linux:xorg-x11-server-xorg, p-cpe:/a:miracle:linux:xorg-x11-server-common, p-cpe:/a:miracle:linux:xorg-x11-server-xwayland, cpe:/o:miracle:linux:7
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/MiracleLinux/release, Host/MiracleLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 9/12/2025
Vulnerability Publication Date: 2/18/2025
Reference Information
CVE: CVE-2025-26594, CVE-2025-26595, CVE-2025-26596, CVE-2025-26597, CVE-2025-26598, CVE-2025-26599, CVE-2025-26600, CVE-2025-26601