Improper Input Validation Affecting glibc package, versions <0:2.28-101.el8



    Attack Complexity High

    Threat Intelligence

    EPSS 0.04% (6th percentile)
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3.3 low
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2.9 low
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Red Hat
2.9 low

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  • Snyk ID SNYK-CENTOS8-GLIBC-2038222
  • published 26 Jul 2021
  • disclosed 19 Nov 2019

How to fix?

Upgrade Centos:8 glibc to version 0:2.28-101.el8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Centos:8. See How to fix? for Centos:8 relevant fixed versions and status.

On the x86-64 architecture, the GNU C Library (aka glibc) before 2.31 fails to ignore the LD_PREFER_MAP_32BIT_EXEC environment variable during program execution after a security transition, allowing local attackers to restrict the possible mapping addresses for loaded libraries and thus bypass ASLR for a setuid program.