NewStart CGSL MAIN 7.02 : glibc Multiple Vulnerabilities (NS-SA-2025-0171)

high Nessus Plugin ID 242700

Synopsis

The remote NewStart CGSL host is affected by multiple vulnerabilities.

Description

The remote NewStart CGSL host, running version MAIN 7.02, has glibc packages installed that are affected by multiple vulnerabilities:

- A heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when the openlog function was not called, or called with the ident argument set to NULL, and the program name (the basename of argv[0]) is bigger than 1024 bytes, resulting in an application crash or local privilege escalation. This issue affects glibc 2.36 and newer. (CVE-2023-6246)

- A flaw was found in glibc. When the getaddrinfo function is called with the AF_UNSPEC address family and the system is configured with no-aaaa mode via /etc/resolv.conf, a DNS response via TCP larger than 2048 bytes can potentially disclose stack contents through the function returned address data, and may cause a crash. (CVE-2023-4527)

- 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)

- A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges. (CVE-2023-4911)

- A flaw was found in the GNU C Library. A recent fix for CVE-2023-4806 introduced the potential for a memory leak, which may result in an application crash. (CVE-2023-5156)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the vulnerable CGSL glibc packages. Note that updated packages may not be available yet. Please contact ZTE for more information.

Plugin Details

Severity: High

ID: 242700

File Name: newstart_cgsl_NS-SA-2025-0171_glibc.nasl

Version: 1.1

Type: local

Family: NewStart CGSL Local Security Checks

Published: 7/25/2025

Updated: 7/25/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2023-6246

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:zte:cgsl_main:glibc-all-langpacks, p-cpe:/a:zte:cgsl_main:glibc-gconv-extra, p-cpe:/a:zte:cgsl_main:glibc, p-cpe:/a:zte:cgsl_main:glibc-locale-source, p-cpe:/a:zte:cgsl_main:nss_db, p-cpe:/a:zte:cgsl_main:glibc-devel, p-cpe:/a:zte:cgsl_main:glibc-common, p-cpe:/a:zte:cgsl_main:glibc-minimal-langpack, p-cpe:/a:zte:cgsl_main:glibc-static, p-cpe:/a:zte:cgsl_main:libnsl, cpe:/o:zte:cgsl_main:7, p-cpe:/a:zte:cgsl_main:compat-libpthread-nonshared, p-cpe:/a:zte:cgsl_main:glibc-langpack-en, p-cpe:/a:zte:cgsl_main:glibc-langpack-zh

Required KB Items: Host/local_checks_enabled, Host/ZTE-CGSL/release, Host/ZTE-CGSL/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/25/2025

Vulnerability Publication Date: 6/13/2023

CISA Known Exploited Vulnerability Due Dates: 12/12/2023

Reference Information

CVE: CVE-2023-4527, CVE-2023-4806, CVE-2023-4911, CVE-2023-5156, CVE-2023-6246, CVE-2023-6779, CVE-2023-6780, CVE-2024-2961, CVE-2024-33599, CVE-2024-33600, CVE-2024-33601, CVE-2024-33602

IAVA: 2025-A-0062-S

Detections

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