The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:3591 advisory.

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

    Security Fix(es):

    * kernel: out-of-bounds access in the show_timer function in kernel/time/posix-timers.c (CVE-2017-18344)

    * kernel: Integer overflow in Linux's create_elf_tables function (CVE-2018-14634)

    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.

    Red Hat would like to thank Qualys Research Labs for reporting CVE-2018-14634.

    Bug Fix(es):

    * On systems running Red Hat Enterprise Linux 7.3 with Red Hat OpenShift Container Platform 3.5, a node     sometimes got into NodeNotReady state after a CPU softlockup. Consequently, the node was not available.
    This update fixes some scheduling latency sources in memory compaction and in the inodes memory reclaim.
    As a result, nodes no longer get into NodeNotReady state under the described circumstances. (BZ#1625866)

    * Previously, a kernel panic occurred when the kernel tried to make an out of bound access to the array     that describes the L1 Terminal Fault (L1TF) mitigation state on systems without Extended Page Tables (EPT)     support. This update extends the array of mitigation states to cover all the states, which effectively     prevents out of bound array access. Also, this update enables rejecting invalid, irrelevant values, that     might be erroneously provided by the userspace. As a result, the kernel no longer panics in the described     scenario. (BZ#1629566)

    * Previously, a packet was missing the User Datagram Protocol (UDP) payload checksum during a full     checksum computation, if the hardware checksum was not applied. As a consequence, a packet with an     incorrect checksum was dropped by a peer. With this update, the kernel includes the UDP payload checksum     during the full checksum computation. As a result, the checksum is computed correctly and the packet can     be received by the peer. (BZ#1635794)

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

Detections

Analytics

RHEL 7 : kernel (RHSA-2018:3591)

high Nessus Plugin ID 118948

Version 1.13

Version 1.12

Version 1.11

Version 1.13 Jan 27, 2026, 5:22 AM CISA reference Plugin Feed: 202601270522
Version 1.12 Nov 5, 2024, 12:50 PM CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Plugin metadata Plugin Feed: 202411051250
Version 1.11 Apr 28, 2024, 3:17 AM CVSSv2 score source (set to "CVE-2018-14634") Detection (updated detection logic) Plugin metadata Reference Plugin Feed: 202404280317