<p>Upgrade <code>Oracle:8</code> <code>libxml2</code> to version 0:2.9.7-9.0.1.el8_4.2 or higher.<br>This issue was patched in <code>ELSA-2021-2569</code>.</p>

Use After Free Affecting libxml2 package, versions <0:2.9.7-9.0.1.el8_4.2

Threat Intelligence

0.15% (52^nd percentile)

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Snyk ID SNYK-ORACLE8-LIBXML2-2584448
published 10 Apr 2022
disclosed 1 Jun 2021

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Introduced: 1 Jun 2021

CVE-2021-3516 Open this link in a new tab CWE-416 Open this link in a new tab

How to fix?

Upgrade Oracle:8 libxml2 to version 0:2.9.7-9.0.1.el8_4.2 or higher.
This issue was patched in ELSA-2021-2569.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxml2 package and not the libxml2 package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

There's a flaw in libxml2's xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability.

References

CVSS Scores

version 3.1

Attack Vector (AV)

Local
Attack Complexity (AC)

Low
Privileges Required (PR)

None
User Interaction (UI)

Required

Scope (S)

Unchanged

Confidentiality (C)

High
Integrity (I)

High
Availability (A)

High

Use After Free Affecting libxml2 package, versions <0:2.9.7-9.0.1.el8_4.2

Severity

Based on Oracle Linux security rating