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Execution with Unnecessary Privileges Affecting kernel-kdump-devel package, versions <0:3.10.0-1127.el7

Severity

 Recommended
medium

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-RHEL7-KERNELKDUMPDEVEL-1519589
  • published 26 Jul 2021
  • disclosed 3 Apr 2019
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Introduced: 3 Apr 2019

CVE-2019-11190 Open this link in a new tab
CWE-250 Open this link in a new tab

How to fix?

Upgrade RHEL:7 kernel-kdump-devel to version 0:3.10.0-1127.el7 or higher.
This issue was patched in RHSA-2020:1016.

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.

The Linux kernel before 4.8 allows local users to bypass ASLR on setuid programs (such as /bin/su) because install_exec_creds() is called too late in load_elf_binary() in fs/binfmt_elf.c, and thus the ptrace_may_access() check has a race condition when reading /proc/pid/stat.

References