Improper Input Validation Affecting glibc-langpack-wal package, versions <0:2.26-37.amzn2


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-AMZN2-GLIBCLANGPACKWAL-5882051
  • published6 Sept 2023
  • disclosed19 Nov 2019

Introduced: 19 Nov 2019

CVE-2019-19126  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 glibc-langpack-wal to version 0:2.26-37.amzn2 or higher.
This issue was patched in ALAS2-2023-2221.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc-langpack-wal package and not the glibc-langpack-wal package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 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.

CVSS Scores

version 3.1