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Improper Input Validation Affecting libcrypt package, versions <0:2.26-62.amzn2

medium

Snyk CVSS

    Attack Complexity Low
    Availability High

    Threat Intelligence

    EPSS 0.51% (77th percentile)
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NVD
7.5 high
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SUSE
4 medium
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Red Hat
7.5 high

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  • Snyk ID SNYK-AMZN2-LIBCRYPT-3110017
  • published 9 Nov 2022
  • disclosed 26 Feb 2019
Report a new vulnerability Found a mistake?

Introduced: 26 Feb 2019

CVE-2009-5155 Open this link in a new tab
CWE-20 Open this link in a new tab
CWE-185 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 libcrypt to version 0:2.26-62.amzn2 or higher.
This issue was patched in ALAS2-2022-1869.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcrypt package and not the libcrypt package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

In the GNU C Library (aka glibc or libc6) before 2.28, parse_reg_exp in posix/regcomp.c misparses alternatives, which allows attackers to cause a denial of service (assertion failure and application exit) or trigger an incorrect result by attempting a regular-expression match.

References