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Related Vulnerabilities: CVE-2022-43680

In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations. (CVE-2022-43680)

Source

ALAS-2022-1655

Amazon Linux AMI Security Advisory: ALAS-2022-1655
Advisory Release Date: 2022-12-01 17:34 Pacific
Advisory Updated Date: 2022-12-10 00:37 Pacific

Severity: Important

References: CVE-2022-43680

Issue Overview:

In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations. (CVE-2022-43680)

Affected Packages:

expat

Issue Correction:
Run yum update expat to update your system.

New Packages:

i686:
    expat-debuginfo-2.1.0-15.33.amzn1.i686
    expat-devel-2.1.0-15.33.amzn1.i686
    expat-2.1.0-15.33.amzn1.i686

src:
    expat-2.1.0-15.33.amzn1.src

x86_64:
    expat-devel-2.1.0-15.33.amzn1.x86_64
    expat-2.1.0-15.33.amzn1.x86_64
    expat-debuginfo-2.1.0-15.33.amzn1.x86_64

Additional References

Red Hat: CVE-2022-43680

Mitre: CVE-2022-43680

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ALAS-2022-1655

ALAS-2022-1655

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