Detections
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Linux Distros Unpatched Vulnerability : CVE-2023-4806
medium Nessus Plugin ID 227161
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Synopsis
The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.Description
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.- A flaw was found in glibc. In an extremely rare situation, the getaddrinfo function may access memory that has been freed, resulting in an application crash. This issue is only exploitable when a NSS module implements only the _nss_*_gethostbyname2_r and _nss_*_getcanonname_r hooks without implementing the
_nss_*_gethostbyname3_r hook. The resolved name should return a large number of IPv6 and IPv4, and the call to the getaddrinfo function should have the AF_INET6 address family with AI_CANONNAME, AI_ALL and AI_V4MAPPED as flags. (CVE-2023-4806)
Note that Nessus relies on the presence of the package as reported by the vendor.
Solution
There is no known solution at this time.See Also
https://access.redhat.com/security/cve/cve-2023-4806
Plugin Details
Severity: Medium
ID: 227161
File Name: unpatched_CVE_2023_4806.nasl
Version: 1.2
Type: local
Agent: unix
Family: Misc.
Published: 3/5/2025
Updated: 8/9/2025
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 4.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P
CVSS Score Source: CVE-2023-4806
CVSS v3
Risk Factor: Medium
Base Score: 5.9
Temporal Score: 5.2
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, cpe:/o:centos:centos:7, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:centos:centos:compat-glibc, p-cpe:/a:centos:centos:glibc, p-cpe:/a:debian:debian_linux:glibc, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:compat-glibc, p-cpe:/a:redhat:enterprise_linux:glibc, p-cpe:/a:canonical:ubuntu_linux:eglibc
Required KB Items: Host/local_checks_enabled, Host/cpu, global_settings/vendor_unpatched, Host/OS/identifier
Exploit Ease: No known exploits are available
Vulnerability Publication Date: 9/18/2023
Reference Information
CVE: CVE-2023-4806