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Use After Free Affecting glibc package, versions <0:2.28-127.el8

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-CENTOS8-GLIBC-2056571
  • published 26 Jul 2021
  • disclosed 17 Jan 2020
Report a new vulnerability Found a mistake?

Introduced: 17 Jan 2020

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

How to fix?

Upgrade Centos:8 glibc to version 0:2.28-127.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. See How to fix? for Centos:8 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