Detections
Analytics
TencentOS Server 3: bind9.16 (TSSA-2023:0071)
medium Nessus Plugin ID 238587
Synopsis
The remote TencentOS Server 3 host is missing one or more security updates.Description
The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2023:0071 advisory.Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:
CVE-2022-3094:
A flaw was found in Bind, where sending a flood of dynamic DNS updates may cause named to allocate large amounts of memory. This issue may cause named to exit due to a lack of free memory, resulting in a denial of service (DoS).
CVE-2022-3094:
A flaw was found in Bind, where sending a flood of dynamic DNS updates may cause named to allocate large amounts of memory. This issue may cause named to exit due to a lack of free memory, resulting in a denial of service (DoS).
CVE-2022-3736:
A flaw was found in Bind, where a resolver crash is possible. When stale cache and stale answers are enabled, the option stale-answer-client-timeout is set to a positive integer, and the resolver receives an RRSIG query.
CVE-2022-3924:
A flaw was found in Bind. When resolver receives many queries requiring recursion, there will be a corresponding increase in the number of clients waiting for recursion to complete. This may, under certain conditions, lead to an assertion failure and a denial of service.
CVE-2022-2795:
A flaw was found in bind. When flooding the target resolver with special queries, an attacker can significantly impair the resolver's performance, effectively denying legitimate clients access to the DNS resolution service.
CVE-2022-3080:
A flaw was found in the Bind package, where the resolver can crash when stale cache and stale answers are enabled, option stale-answer-client-timeout is set to 0 and there is a stale CNAME in the cache for an incoming query. By sending specific queries to the resolver, an attacker can cause named to crash.
CVE-2022-38177:
A flaw was found in the Bind package. By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak, resulting in crashing the program.
CVE-2022-38178:
A flaw was found in the Bind package, where the DNSSEC verification code for the EdDSA algorithm leaks memory when there is a signature length mismatch. By spoofing the target resolver with responses that have a malformed EdDSA signature, an attacker can trigger a small memory leak, resulting in crashing the program.
CVE-2021-25220:
A cache poisoning vulnerability was found in BIND when using forwarders. Bogus NS records supplied by the forwarders may be cached and used by name if it needs to recurse for any reason. This issue causes it to obtain and pass on potentially incorrect answers. This flaw allows a remote high privileged attacker to manipulate cache results with incorrect records, leading to queries made to the wrong servers, possibly resulting in false information received on the client's end.
Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
Plugin Details
Severity: Medium
ID: 238587
File Name: tencentos_TSSA_2023_0071.nasl
Version: 1.2
Type: local
Family: Tencent Local Security Checks
Published: 6/16/2025
Updated: 11/20/2025
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 4
Temporal Score: 3
Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:N
CVSS Score Source: CVE-2021-25220
CVSS v3
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5.9
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: Medium
Base Score: 6.3
Threat Score: 1.7
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CVSS Score Source: CVE-2022-2795
Vulnerability Information
CPE: cpe:/o:tencent:tencentos_server:3, p-cpe:/a:tencent:tencentos_server:bind9.16
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/etc/os-release, Host/TencentOS/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 6/14/2023
Vulnerability Publication Date: 6/14/2023
Reference Information
CVE: CVE-2021-25220, CVE-2022-2795, CVE-2022-3080, CVE-2022-3094, CVE-2022-3736, CVE-2022-38177, CVE-2022-38178, CVE-2022-3924