Improper Initialization Affecting glibc package, versions [0,2.31)


Severity

Recommended
0.0
low
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-UNMANAGED-GLIBC-2327399
  • published29 Dec 2021
  • disclosed19 Nov 2019
  • creditUnknown

Introduced: 19 Nov 2019

CVE-2019-19126  (opens in a new tab)
CWE-665  (opens in a new tab)

How to fix?

Upgrade glibc to version 2.31 or higher.

Overview

Affected versions of this package are vulnerable to Improper Initialization. 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.

References

CVSS Scores

version 3.1