It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2025-890 advisory.

    In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses     libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an svc_run infinite loop     without accepting new connections. (CVE-2021-46828)

Tenable has extracted the preceding description block directly from the tested product security advisory.

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

The remote Ubuntu 20.04 LTS / 22.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-5538-1 advisory.

    It was discovered that libtirpc incorrectly handled certain inputs. An attacker could possibly use this     issue to cause a denial of service.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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

According to the versions of the libtirpc package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses     libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an svc_run infinite loop     without accepting new connections. (CVE-2021-46828)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the libtirpc packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses     libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an svc_run infinite loop     without accepting new connections. (CVE-2021-46828)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the libtirpc package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses     libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an svc_run infinite loop     without accepting new connections. (CVE-2021-46828)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the libtirpc packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses     libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an svc_run infinite loop     without accepting new connections. (CVE-2021-46828)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2022:8400 advisory.

  - In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses     libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an svc_run infinite loop     without accepting new connections. (CVE-2021-46828)

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

In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an svc_run infinite loop without accepting new connections.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

ID	名稱	產品	系列	已發布	已更新	嚴重性
232282	Amazon Linux 2023 : libtirpc, libtirpc-devel (ALAS2023-2025-890)	Nessus	Amazon Linux Local Security Checks	2025/3/7	2025/3/7	high
163523	Ubuntu 20.04 LTS / 22.04 LTS : libtirpc vulnerability (USN-5538-1)	Nessus	Ubuntu Local Security Checks	2022/7/28	2024/8/27	high
165043	EulerOS 2.0 SP9 : libtirpc (EulerOS-SA-2022-2298)	Nessus	Huawei Local Security Checks	2022/9/14	2022/12/5	high
165844	EulerOS 2.0 SP8 : libtirpc (EulerOS-SA-2022-2470)	Nessus	Huawei Local Security Checks	2022/10/9	2022/11/29	high
166863	EulerOS 2.0 SP10 : libtirpc (EulerOS-SA-2022-2658)	Nessus	Huawei Local Security Checks	2022/11/2	2022/11/28	high
175228	EulerOS Virtualization 3.0.2.0 : libtirpc (EulerOS-SA-2023-1703)	Nessus	Huawei Local Security Checks	2023/5/7	2023/5/7	high
177165	EulerOS Virtualization 3.0.6.0 : libtirpc (EulerOS-SA-2023-2201)	Nessus	Huawei Local Security Checks	2023/6/13	2023/6/13	high
184606	Rocky Linux 9 : libtirpc (RLSA-2022:8400)	Nessus	Rocky Linux Local Security Checks	2023/11/6	2023/11/6	high
501084	Siemens SCALANCE XCM332 Allocation of Resources Without Limits or Throttling (CVE-2021-46828)	Tenable OT Security	Tenable.ot	2023/5/2	2025/11/13	high

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