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Resource Exhaustion Affecting kernel-kdump-devel package, versions <0:3.10.0-957.el7

Severity

 Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.04% (12th percentile)

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  • Snyk ID SNYK-RHEL7-KERNELKDUMPDEVEL-4851806
  • published 26 Jul 2021
  • disclosed 8 Mar 2018
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Introduced: 8 Mar 2018

CVE-2018-7757 Open this link in a new tab
CWE-400 Open this link in a new tab

How to fix?

Upgrade RHEL:7 kernel-kdump-devel to version 0:3.10.0-957.el7 or higher.
This issue was patched in RHSA-2018:3083.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-kdump-devel package and not the kernel-kdump-devel package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c in the Linux kernel through 4.15.7 allows local users to cause a denial of service (memory consumption) via many read accesses to files in the /sys/class/sas_phy directory, as demonstrated by the /sys/class/sas_phy/phy-1:0:12/invalid_dword_count file.