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OpenAdvisories
Medium · 4.3 CVE-2021-21366 EUVD-2021-0663GHSA-h6q6-9hqw-rwfv

Misinterpretation of malicious XML input

Published Mar 12, 2021 · Updated Aug 3, 2024 · Assigned by GitHub_M

Vendor: xmldom Product: xmldom Package: node-xmldom Package: node-xmldom Package: xmldom Ecosystem: Debian Ecosystem: npm Ecosystem: Ubuntu

Description

xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module. xmldom versions 0.4.0 and older do not correctly preserve system identifiers, FPIs or namespaces when repeatedly parsing and serializing maliciously crafted documents. This may lead to unexpected syntactic changes during XML processing in some downstream applications. This is fixed in version 0.5.0. As a workaround downstream applications can validate the input and reject the maliciously crafted documents.

Affected products

VendorProductAffectedFixed
xmldom xmldom < 0.5.0 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Debian

Security tracker ↗
ReleasePackageFixed inAdvisory
Debian 14 node-xmldom 0.5.0-1 —
Debian 13 node-xmldom 0.5.0-1 —
Debian 12 node-xmldom 0.5.0-1 —
Debian 10 node-xmldom 0.1.27+ds-1+deb10u2 DLA-3260-1

Ubuntu

Security tracker ↗
ReleasePackageFixed inAdvisory
Ubuntu 22.04 LTS node-xmldom 0.7.5-1ubuntu0.22.04.1 USN-6102-1
Ubuntu 20.04 LTS node-xmldom 0.1.27+ds-1+deb10u2build0.20.04.1 USN-6102-1

Affected packages

EcosystemPackageAffectedFixedRecord
npm xmldom < 0.5.0 0.5.0 GHSA-h6q6-9hqw-rwfv

Advisories 2

References