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Use After Free Affecting libwebp package, versions <0.4.0-4ubuntu0.1~esm1

medium

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.55% (78th percentile)
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NVD
9.8 critical
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SUSE
6.7 medium
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Red Hat
9.8 critical

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  • Snyk ID SNYK-UBUNTU1404-LIBWEBP-1303188
  • published 1 Jun 2021
  • disclosed 21 May 2021
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Introduced: 21 May 2021

CVE-2020-36329 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade Ubuntu:14.04 libwebp to version 0.4.0-4ubuntu0.1~esm1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libwebp package and not the libwebp package as distributed by Ubuntu. See How to fix? for Ubuntu:14.04 relevant fixed versions and status.

A flaw was found in libwebp in versions before 1.0.1. A use-after-free was found due to a thread being killed too early. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.