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Use After Free Affecting glibc-minimal-langpack package, versions <0:2.26-37.amzn2

medium

Snyk CVSS

    Attack Complexity High
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.11% (45th percentile)
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NVD
7 high
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SUSE
7 high
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Red Hat
7 high

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  • Snyk ID SNYK-AMZN2-GLIBCMINIMALLANGPACK-5881921
  • published 6 Sep 2023
  • disclosed 30 Apr 2020
Report a new vulnerability Found a mistake?

Introduced: 30 Apr 2020

CVE-2020-1752 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 glibc-minimal-langpack 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-minimal-langpack package and not the glibc-minimal-langpack package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a specially crafted path that, when processed by the glob function, would potentially lead to arbitrary code execution. This was fixed in version 2.32.

References