Detections
Analytics
CBL Mariner 2.0 Security Update: xorg-x11-server (CVE-2025-49176)
high Nessus Plugin ID 244786
Synopsis
The remote CBL Mariner host is missing one or more security updates.Description
The version of xorg-x11-server installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-49176 advisory.- A flaw was found in the Big Requests extension. The request length is multiplied by 4 before checking against the maximum allowed size, potentially causing an integer overflow and bypassing the size check.
(CVE-2025-49176)
Note that Nessus has not tested for this issue 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: 244786
File Name: mariner_CVE-2025-49176.nasl
Version: 1.1
Type: local
Family: MarinerOS Local Security Checks
Published: 8/7/2025
Updated: 8/7/2025
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.3
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-2025-49176
CVSS v3
Risk Factor: High
Base Score: 7.3
Temporal Score: 6.4
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:microsoft:cbl-mariner:xorg-x11-server-devel, p-cpe:/a:microsoft:cbl-mariner:xorg-x11-server-xnest, p-cpe:/a:microsoft:cbl-mariner:xorg-x11-server-xvfb, p-cpe:/a:microsoft:cbl-mariner:xorg-x11-server-xorg, p-cpe:/a:microsoft:cbl-mariner:xorg-x11-server-common, p-cpe:/a:microsoft:cbl-mariner:xorg-x11-server-xwayland, x-cpe:/o:microsoft:cbl-mariner
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/CBLMariner/release, Host/CBLMariner/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 8/6/2025
Vulnerability Publication Date: 6/17/2025
Reference Information
CVE: CVE-2025-49176