Bug 2040839 (CVE-2021-44531) - CVE-2021-44531 nodejs: Improper handling of URI Subject Alternative Names
Summary: CVE-2021-44531 nodejs: Improper handling of URI Subject Alternative Names
Keywords:
Status: NEW
Alias: CVE-2021-44531
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
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Depends On: 2042964 2042968 2042970 2046369 2052252 2086799 2086800 2086801 2086802 2087166 2040841 2040842 2040843 2040844 2040845 2042965 2042967 2042969
Blocks: 2040868
TreeView+ depends on / blocked
 
Reported: 2022-01-14 19:28 UTC by Guilherme de Almeida Suckevicz
Modified: 2022-05-19 08:20 UTC (History)
24 users (show)

Fixed In Version: node 12.22.9, node 14.18.3, node 16.13.2, node 17.3.1
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Doc Text:
A flaw was found in node.js where it accepted a certificate's Subject Alternative Names (SAN) entry, as opposed to what is specified by the HTTPS protocol. This flaw allows an active person-in-the-middle to forge a certificate and impersonate a trusted host.
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Description Guilherme de Almeida Suckevicz 2022-01-14 19:28:17 UTC 
Accepting arbitrary Subject Alternative Name (SAN) types, unless a PKI is specifically defined to use a particular SAN type, can result in bypassing name-constrained intermediates. Node.js was accepting URI SAN types, which PKIs are often not defined to use. Additionally, when a protocol allows URI SANs, Node.js did not match the URI correctly.

Versions of Node.js with the fix for this disable the URI SAN type when checking a certificate against a hostname.

Reference:
https://nodejs.org/en/blog/vulnerability/jan-2022-security-releases/
Comment 1 Guilherme de Almeida Suckevicz 2022-01-14 19:30:51 UTC 
Created nodejs tracking bugs for this issue:

Affects: epel-7 [bug 2040845]
Affects: fedora-all [bug 2040841]


Created nodejs:12/nodejs tracking bugs for this issue:

Affects: fedora-all [bug 2040842]


Created nodejs:14/nodejs tracking bugs for this issue:

Affects: fedora-all [bug 2040843]


Created nodejs:16/nodejs tracking bugs for this issue:

Affects: fedora-all [bug 2040844]
Comment 3 Cedric Buissart 2022-01-20 12:51:16 UTC 
Upstream fix :
https://github.com/nodejs/node/commit/50439b446f1e6bfc91f03d4b070edb5357b16b8b
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