CVE-2021-21366
Published: 12 March 2021
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.
Priority
Status
Package | Release | Status |
---|---|---|
node-xmldom Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
focal |
Released
(0.1.27+ds-1+deb10u2build0.20.04.1)
|
|
groovy |
Ignored
(reached end-of-life)
|
|
hirsute |
Ignored
(reached end-of-life)
|
|
impish |
Ignored
(reached end-of-life)
|
|
jammy |
Not vulnerable
(0.7.5-1)
|
|
kinetic |
Not vulnerable
(0.7.5-1)
|
|
lunar |
Not vulnerable
(0.7.5-1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(0.5.0)
|
|
xenial |
Does not exist
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 4.3 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | Required |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | Low |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21366
- https://github.com/xmldom/xmldom/security/advisories/GHSA-h6q6-9hqw-rwfv
- https://github.com/xmldom/xmldom/commit/d4201b9dfbf760049f457f9f08a3888d48835135
- https://github.com/xmldom/xmldom/releases/tag/0.5.0
- https://www.npmjs.com/package/xmldom
- https://ubuntu.com/security/notices/USN-6102-1
- NVD
- Launchpad
- Debian