Detections
Analytics
Amazon Linux 2023 : libX11, libX11-common, libX11-devel (ALAS2023-2023-383)
high Nessus Plugin ID 183823
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Synopsis
The remote Amazon Linux 2023 host is missing a security update.Description
It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-383 advisory.- A vulnerability was found in libX11 due to a boundary condition within the _XkbReadKeySyms() function.
This flaw allows a local user to trigger an out-of-bounds read error and read the contents of memory on the system. (CVE-2023-43785)
- A vulnerability was found in libX11 due to an infinite loop within the PutSubImage() function. This flaw allows a local user to consume all available system resources and cause a denial of service condition.
(CVE-2023-43786)
- A vulnerability was found in libX11 due to an integer overflow within the XCreateImage() function. This flaw allows a local user to trigger an integer overflow and execute arbitrary code with elevated privileges. (CVE-2023-43787)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Run 'dnf update libX11 --releasever 2023.2.20231018' to update your system.See Also
https://alas.aws.amazon.com/AL2023/ALAS-2023-383.html
https://alas.aws.amazon.com/cve/html/CVE-2023-43785.html
https://alas.aws.amazon.com/cve/html/CVE-2023-43786.html
Plugin Details
Severity: High
ID: 183823
File Name: al2023_ALAS2023-2023-383.nasl
Version: 1.0
Type: local
Agent: unix
Published: 10/24/2023
Updated: 10/24/2023
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
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-2023-43787
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:amazon:linux:libx11-debuginfo, p-cpe:/a:amazon:linux:libx11, p-cpe:/a:amazon:linux:libx11-xcb-debuginfo, p-cpe:/a:amazon:linux:libx11-common, p-cpe:/a:amazon:linux:libx11-xcb, p-cpe:/a:amazon:linux:libx11-debugsource, p-cpe:/a:amazon:linux:libx11-devel, cpe:/o:amazon:linux:2023
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 10/12/2023
Vulnerability Publication Date: 10/4/2023