Detections
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Amazon Linux 2023 : bsdcat, bsdcpio, bsdtar (ALAS2023-2023-071)
high Nessus Plugin ID 173146
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 ALAS2023-2023-071 advisory.- An improper link resolution flaw can occur while extracting an archive leading to changing modes, times, access control lists, and flags of a file outside of the archive. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to gain more privileges in a system. (CVE-2021-31566)
- libarchive 3.4.1 through 3.5.1 has a use-after-free in copy_string (called from do_uncompress_block and process_block). (CVE-2021-36976)
- Libarchive v3.6.0 was discovered to contain an out-of-bounds read via the component zipx_lzma_alone_init.
(CVE-2022-26280)
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 libarchive --releasever=2023.0.20230222 ' to update your system.See Also
https://alas.aws.amazon.com/AL2023/ALAS-2023-071.html
https://alas.aws.amazon.com/cve/html/CVE-2021-31566.html
https://alas.aws.amazon.com/cve/html/CVE-2021-36976.html
Plugin Details
Severity: High
ID: 173146
File Name: al2023_ALAS2023-2023-071.nasl
Version: 1.1
Type: local
Agent: unix
Published: 3/21/2023
Updated: 4/21/2023
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: Medium
Base Score: 5.8
Temporal Score: 4.5
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:P
CVSS Score Source: CVE-2022-26280
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 7
Vector: CVSS:3.0/AV:L/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
CVSS Score Source: CVE-2021-31566
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:bsdcat-debuginfo, p-cpe:/a:amazon:linux:libarchive-debuginfo, p-cpe:/a:amazon:linux:libarchive-devel, p-cpe:/a:amazon:linux:libarchive-debugsource, p-cpe:/a:amazon:linux:bsdcat, cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:bsdtar, p-cpe:/a:amazon:linux:libarchive, p-cpe:/a:amazon:linux:bsdcpio-debuginfo, p-cpe:/a:amazon:linux:bsdcpio, p-cpe:/a:amazon:linux:bsdtar-debuginfo
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: 7/20/2021