The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - ubifs: Fix races between xattr_{set|get} and listxattr operations UBIFS may occur some problems with     concurrent xattr_{set|get} and listxattr operations, such as assertion failure, memory corruption, stale     xattr value[1]. Fix it by importing a new rw-lock in @ubifs_inode to serilize write operations on xattr,     concurrent read operations are still effective, just like ext4. [1] https://lore.kernel.org/linux-     mtd/20200630130438.141649-1-houtao1@huawei.com (CVE-2021-47351)

Note that Nessus relies on the presence of the package as reported by the vendor.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989505 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    ubifs: Fix races between xattr_{set|get} and listxattr operations

    UBIFS may occur some problems with concurrent xattr_{set|get} and     listxattr operations, such as assertion failure, memory corruption,     stale xattr value[1].

    Fix it by importing a new rw-lock in @ubifs_inode to serilize write     operations on xattr, concurrent read operations are still effective,     just like ext4.

    [1] https://lore.kernel.org/linux-mtd/20200630130438.141649-1-houtao1@huawei.com

Tenable has extracted the preceding description block directly from the Unity Linux 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 Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-986963 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    ubifs: Fix races between xattr_{set|get} and listxattr operations

    UBIFS may occur some problems with concurrent xattr_{set|get} and     listxattr operations, such as assertion failure, memory corruption,     stale xattr value[1].

    Fix it by importing a new rw-lock in @ubifs_inode to serilize write     operations on xattr, concurrent read operations are still effective,     just like ext4.

    [1] https://lore.kernel.org/linux-mtd/20200630130438.141649-1-houtao1@huawei.com

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

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

ID	Name	Product	Family	Published	Updated	Severity
244201	Linux Distros Unpatched Vulnerability : CVE-2021-47351	Nessus	Misc.	8/6/2025	10/28/2025	medium
273668	Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989505)	Nessus	Unity Linux Local Security Checks	11/5/2025	11/5/2025	medium
239342	TencentOS Server 4: kernel (TSSA-2024:0981)	Nessus	Tencent Local Security Checks	6/16/2025	12/4/2025	high
268387	Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986963)	Nessus	Unity Linux Local Security Checks	10/7/2025	10/15/2025	medium

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