PT-2022-14877 · Npm · Libxmljs

Aviad Hahami + 1 · Published 2022-05-01 · Updated 2023-08-08 · CVE-2022-21144

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions libxmljs versions all

Description The issue arises when the libxmljs.parseXml function is invoked with a non-buffer argument. In such cases, the V8 code attempts to call the toString method of the argument. If the argument's toString value is not a Function object, V8 will crash. This is a problem related to the libxmljs package, which provides libxml bindings for the V8 JavaScript engine.

Recommendations For all versions of libxmljs, as a temporary workaround, consider avoiding the use of the libxmljs.parseXml function with non-buffer arguments until a patch is available. Restrict access to this function to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2022-21144

GHSA-773H-W45W-F2F9

SNYK-JS-LIBXMLJS-2348756

Affected Products

Libxmljs

References · 9

• 🔥 https://snyk.io/vuln/SNYK-JS-LIBXMLJS-2348756 · Exploit
• https://github.com/libxmljs/libxmljs/pull/594 · Patch
• https://github.com/libxmljs/libxmljs/commit/2501807bde9b38cfaed06d1e140487516d91379d · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-21144 · Security Note
• https://osv.dev/vulnerability/CVE-2022-21144 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-773h-w45w-f2f9 · Vendor Advisory
• https://github.com/libxmljs/libxmljs · Note
• https://t.me/cvenotify/33309 · Telegram Post
• https://t.me/cvenotify/29526 · Telegram Post