Detections
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Amazon Linux AMI : yasm (ALAS-2023-1724)
medium Nessus Plugin ID 173934
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Synopsis
The remote Amazon Linux AMI host is missing a security update.Description
The version of yasm installed on the remote host is prior to 1.2.0-1.5. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2023-1724 advisory.- An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in yasm_expr_get_intnum() in libyasm/expr.c. (CVE-2021-33454)
- An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in nasm_parser_directive() in modules/parsers/nasm/nasm-parse.c. (CVE-2021-33459)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Run 'yum update yasm' to update your system.See Also
https://alas.aws.amazon.com/ALAS-2023-1724.html
https://alas.aws.amazon.com/cve/html/CVE-2021-33454.html
Plugin Details
Severity: Medium
ID: 173934
File Name: ala_ALAS-2023-1724.nasl
Version: 1.1
Type: local
Agent: unix
Published: 4/6/2023
Updated: 4/19/2023
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 4.9
Temporal Score: 3.8
Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C
CVSS Score Source: CVE-2021-33459
CVSS v3
Risk Factor: Medium
Base Score: 5.5
Temporal Score: 5
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:yasm-debuginfo, p-cpe:/a:amazon:linux:yasm, p-cpe:/a:amazon:linux:yasm-devel, cpe:/o:amazon:linux
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: 3/30/2023
Vulnerability Publication Date: 7/26/2022
Reference Information
CVE: CVE-2021-33454, CVE-2021-33459