Node.js Patches Various Flaws that may Lead to Attacks

About vulnerabilities

Node.js maintainers released multiple patches for flaws in the JavaScript runtime environment that can cause HTTP request smuggling and arbitrary code execution, among some other attacks. An advisory mentions the information about the seven patched bugs, it includes three seperate HTTP Request Smuggling vulnerabilities.

The three flaws- a flawed parsing of transfer-encoding bug, tracked as CVE-2022-32213, an errored delimiting of header fields issue, tracked as CVE-2022-32214, and an improper parsing of multi-line transfer encoding exploit, tracked as CVE-2022-32215, can all in the end lead towards HTTP request smuggling.

The Daily Swig says “the moderate-severity implementation bug (CVE-2022-2097) could cause encryption to fail in some circumstances. AES OCB mode for 32-bit x86 platforms using the AES-NI assembly optimized implementation will not encrypt the entirety of the data, which could reveal sixteen bytes of data that was pre-existing in the memory that wasn’t written.”

How Severe are these bugs?

The three bugs were rated as “medium” severity, they affect all three variants of the 18.x, 16.x, and 14.x releases lines. llhttp v6.0.7 and llhttp v2.1.5 includes the patches that were updated inside Node.js.