The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2019:0202 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * kernel: userfaultfd bypasses tmpfs file permissions (CVE-2018-18397)

    For more details about the security issue(s), including the impact, a CVSS score, and other related     information, refer to the CVE page(s) listed in the References section.

    Bug Fix(es):

    * When applying two instances of the kprobe debugging mechanism to the same function, one of the kprobes     in some cases failed, depending on the kernel address space layout. Consequently, a kprobe registration     error occurred. This update fixes the bug in the kprobes registration code to properly detect and handle     ftrace-based kprobes. As a result, both kprobes now apply successfully in the described scenario.
    (BZ#1647815)

    * Under heavy mad packet load, the SELinux checks in the mad packet queries for InfiniBand (IB) fabrics     significantly increased the mad packet execution time. Consequently, if a single machine was executing a     large perfquery to the IB switches of a High Performance (HPC) fabric, mad_rpc timeouts occurred, and the     query failed even with SELinux disabled. This update eliminates the SELinux checks when SELinux is     disabled. As a result, the mad packet queries through perfquery now have their original run times when     SELinux is disabled. (BZ#1648810)

    * Previously, a file-system shutdown process caused by an I/O error could race against a running fstrim     process to acquire a xfs buffer lock. Consequently, the file-system shutdown process never completed due     to a deadlock and the file-system became unresponsive, unable to be unmounted. This update fixes the lock     ordering so that the deadlock no longer occurs and the file-system shutdown process now completes in the     described scenario. (BZ#1657142)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise 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.

Detections

Analytics

RHEL 7 : kernel (RHSA-2019:0202)

medium Nessus Plugin ID 121453

Version 1.10

Version 1.9

Version 1.10 Nov 8, 2024, 2:25 AM CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Plugin metadata Plugin Feed: 202411080225
Version 1.9 Apr 28, 2024, 1:01 AM CVSSv2 score source (set to "CVE-2018-18397") Detection (updated detection logic) Plugin metadata Reference Plugin Feed: 202404280101