Detections
Analytics
RHEL 8 : libtasn1 (RHSA-2024:0427)
critical Nessus Plugin ID 189544
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Synopsis
The remote Red Hat host is missing a security update for libtasn1.Description
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2024:0427 advisory.A library that provides Abstract Syntax Notation One (ASN.1, as specified by the X.680 ITU-T recommendation) parsing and structures management, and Distinguished Encoding Rules (DER, as per X.690) encoding and decoding functions.
Security Fix(es):
* libtasn1: Out-of-bound access in ETYPE_OK (CVE-2021-46848)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
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 RHEL libtasn1 package based on the guidance in RHSA-2024:0427.See Also
http://www.nessus.org/u?14b7129e
https://access.redhat.com/security/updates/classification/#moderate
Plugin Details
Severity: Critical
ID: 189544
File Name: redhat-RHSA-2024-0427.nasl
Version: 1.4
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 1/25/2024
Updated: 11/7/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.0
Vendor
Vendor Severity: Moderate
CVSS v2
Risk Factor: High
Base Score: 9.4
Temporal Score: 7.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:C
CVSS Score Source: CVE-2021-46848
CVSS v3
Risk Factor: Critical
Base Score: 9.1
Temporal Score: 8.2
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:libtasn1, p-cpe:/a:redhat:enterprise_linux:libtasn1-tools, cpe:/o:redhat:rhel_eus:8.6, p-cpe:/a:redhat:enterprise_linux:libtasn1-devel
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 1/25/2024
Vulnerability Publication Date: 10/24/2022
Reference Information
CVE: CVE-2021-46848