Detections
Analytics
Amazon Linux 2 : ldns (ALAS-2023-2032)
medium Nessus Plugin ID 175022
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Synopsis
The remote Amazon Linux 2 host is missing a security update.Description
The version of ldns installed on the remote host is prior to 1.6.16-10. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2023-2032 advisory.- When ldns version 1.7.1 verifies a zone file, the ldns_rr_new_frm_str_internal function has a heap out of bounds read vulnerability. An attacker can leak information on the heap by constructing a zone file payload. (CVE-2020-19860)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Run 'yum update ldns' to update your system.See Also
https://alas.aws.amazon.com/AL2/ALAS-2023-2032.html
Plugin Details
Severity: Medium
ID: 175022
File Name: al2_ALAS-2023-2032.nasl
Version: 1.1
Type: local
Agent: unix
Published: 5/2/2023
Updated: 5/3/2023
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 4.3
Temporal Score: 3.4
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N
CVSS Score Source: CVE-2020-19860
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Temporal Score: 5.9
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:ldns-doc, p-cpe:/a:amazon:linux:ldns-debuginfo, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:ldns, p-cpe:/a:amazon:linux:ldns-python, p-cpe:/a:amazon:linux:ldns-devel
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: 4/27/2023
Vulnerability Publication Date: 1/21/2022
Reference Information
CVE: CVE-2020-19860