In the Linux kernel, the following vulnerability has been resolved: dccp: fix data-race around dp->dccps_mss_cache dccp_sendmsg() reads dp->dccps_mss_cache before locking the socket. Same thing in do_dccp_getsockopt(). Add READ_ONCE()/WRITE_ONCE() annotations, and change dccp_sendmsg() to check again dccps_mss_cache after socket is locked.

The version of kernel installed on the remote host is prior to 5.4.254-169.358. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2025-116 advisory.

    A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss     of confidentiality. (CVE-2023-20588)

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

    scsi: core: Fix possible memory leak if device_add() fails (CVE-2023-53174)

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

    scsi: storvsc: Fix handling of virtual Fibre Channel timeouts (CVE-2023-53245)

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

    nilfs2: fix use-after-free of nilfs_root in dirtying inodes via iput (CVE-2023-53311)

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

    dccp: fix data-race around dp->dccps_mss_cache (CVE-2023-53839)

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

    usb-storage: alauda: Fix uninit-value in alauda_check_media() (CVE-2023-53847)

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

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

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

  - dccp: fix data-race around dp->dccps_mss_cache dccp_sendmsg() reads dp->dccps_mss_cache before locking the     socket. Same thing in do_dccp_getsockopt(). Add READ_ONCE()/WRITE_ONCE() annotations, and change     dccp_sendmsg() to check again dccps_mss_cache after socket is locked. (CVE-2023-53839)

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

ID	Name	Product	Family	Severity
281815	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2025-116 (ALASKERNEL-5.4-2025-116)	Nessus	Amazon Linux Local Security Checks	high
278059	Linux Distros Unpatched Vulnerability : CVE-2023-53839	Nessus	Misc.	medium

Detections

Analytics

CVE-2023-53839

medium

Tenable Plugins

high

medium