Detections
Analytics
Amazon Linux 2023 : ncurses, ncurses-base, ncurses-c++-libs (ALAS2023-2023-023)
high Nessus Plugin ID 173173
Language:
Synopsis
The remote Amazon Linux 2023 host is missing a security update.Description
It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-023 advisory.The ncurses package (tic) is susceptible to a heap overflow on crafted input. When the terminfo entry- description compiler processes input, proper bounds checking was not enforced leading to this software flaw. The highest threat from this vulnerability is system availability. (CVE-2021-39537)
A segmentation fault vulnerability was found in ncurses's convert_strings() function of tinfo/read_entry.c file. This flaw occurs due to corrupted terminfo data, triggering an out-of-bounds read error.
(CVE-2022-29458)
Tenable has extracted the preceding description block directly from the tested product 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
Run 'dnf update ncurses --releasever=2023.0.20230222 ' to update your system.See Also
https://alas.aws.amazon.com/AL2023/ALAS-2023-023.html
https://alas.aws.amazon.com/cve/html/CVE-2021-39537.html
Plugin Details
Severity: High
ID: 173173
File Name: al2023_ALAS2023-2023-023.nasl
Version: 1.2
Type: local
Agent: unix
Published: 3/21/2023
Updated: 12/11/2024
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: 5.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2021-39537
CVSS v3
Risk Factor: High
Base Score: 8.8
Temporal Score: 7.9
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:ncurses-c%2b%2b-libs-debuginfo, p-cpe:/a:amazon:linux:ncurses-c%2b%2b-libs, p-cpe:/a:amazon:linux:ncurses-compat-libs-debuginfo, p-cpe:/a:amazon:linux:ncurses-debuginfo, p-cpe:/a:amazon:linux:ncurses-devel, p-cpe:/a:amazon:linux:ncurses-term, p-cpe:/a:amazon:linux:ncurses, p-cpe:/a:amazon:linux:ncurses-base, p-cpe:/a:amazon:linux:ncurses-compat-libs, p-cpe:/a:amazon:linux:ncurses-debugsource, p-cpe:/a:amazon:linux:ncurses-libs, p-cpe:/a:amazon:linux:ncurses-libs-debuginfo, p-cpe:/a:amazon:linux:ncurses-static, cpe:/o:amazon:linux:2023
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 2/17/2023
Vulnerability Publication Date: 9/20/2021
Reference Information
CVE: CVE-2021-39537, CVE-2022-29458