Vulnerability · Published Feb 16, 2023 · Assigned by GitHub_M
CVE-2023-23936CRLF Injection in Nodejs ‘undici’ via host
Medium 6.5
In plain English
A medium-severity security flaw in undici from nodejs. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 67% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)1.1%top 33.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Undici is an HTTP/1.1 client for Node.js. Starting with version 2.0.0 and prior to version 5.19.1, the undici library does not protect `host` HTTP header from CRLF injection vulnerabilities. This issue is patched in Undici v5.19.1. As a workaround, sanitize the `headers.host` string before passing to undici.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | nodejs | 1:18.14.2-2.module_el8.7.0+3497+c65299e7 | ALSA-2023:1583 |
| AlmaLinux:8 | nodejs | 1:16.19.1-1.module_el8.7.0+3496+a59a3324 | ALSA-2023:1582 |
| AlmaLinux:9 | nodejs | 1:16.19.1-1.el9_2 | ALSA-2023:2655 |
| AlmaLinux:9 | nodejs | 1:18.14.2-2.module_el9.2.0+29+de583a0b | ALSA-2023:2654 |
| AlmaLinux:8 | nodejs-devel | 1:16.19.1-1.module_el8.7.0+3496+a59a3324 | ALSA-2023:1582 |
| AlmaLinux:8 | nodejs-devel | 1:18.14.2-2.module_el8.7.0+3497+c65299e7 | ALSA-2023:1583 |
| AlmaLinux:9 | nodejs-devel | 1:18.14.2-2.module_el9.2.0+29+de583a0b | ALSA-2023:2654 |
| AlmaLinux:8 | nodejs-docs | 1:18.14.2-2.module_el8.7.0+3497+c65299e7 | ALSA-2023:1583 |
| AlmaLinux:8 | nodejs-docs | 1:16.19.1-1.module_el8.7.0+3496+a59a3324 | ALSA-2023:1582 |
| AlmaLinux:9 | nodejs-docs | 1:18.14.2-2.module_el9.2.0+29+de583a0b | ALSA-2023:2654 |
| AlmaLinux:9 | nodejs-docs | 1:16.19.1-1.el9_2 | ALSA-2023:2655 |
| AlmaLinux:8 | nodejs-full-i18n | 1:16.19.1-1.module_el8.7.0+3496+a59a3324 | ALSA-2023:1582 |
| AlmaLinux:8 | nodejs-full-i18n | 1:18.14.2-2.module_el8.7.0+3497+c65299e7 | ALSA-2023:1583 |
| AlmaLinux:9 | nodejs-full-i18n | 1:18.14.2-2.module_el9.2.0+29+de583a0b | ALSA-2023:2654 |
| AlmaLinux:9 | nodejs-full-i18n | 1:16.19.1-1.el9_2 | ALSA-2023:2655 |
| AlmaLinux:9 | nodejs-libs | 1:16.19.1-1.el9_2 | ALSA-2023:2655 |
| AlmaLinux:8 | nodejs-nodemon | 2.0.20-2.module_el8.7.0+3497+c65299e7 | ALSA-2023:1583 |
| AlmaLinux:8 | nodejs-nodemon | 2.0.20-3.module_el8.7.0+3496+a59a3324 | ALSA-2023:1582 |
| AlmaLinux:9 | nodejs-nodemon | 2.0.20-2.module_el9.2.0+29+de583a0b | ALSA-2023:2654 |
| AlmaLinux:8 | nodejs-packaging | 2021.06-4.module_el8.7.0+3343+ea2b7901 | ALSA-2023:1583 |
| AlmaLinux:8 | nodejs-packaging | 25-1.module_el8.5.0+2605+45d748af | ALSA-2023:1582 |
| AlmaLinux:9 | nodejs-packaging | 2021.06-4.module_el9.1.0+13+d9a595ea | ALSA-2023:2654 |
| AlmaLinux:8 | nodejs-packaging-bundler | 2021.06-4.module_el8.7.0+3343+ea2b7901 | ALSA-2023:1583 |
| AlmaLinux:9 | nodejs-packaging-bundler | 2021.06-4.module_el9.1.0+13+d9a595ea | ALSA-2023:2654 |
| AlmaLinux:8 | npm | 1:9.5.0-1.18.14.2.2.module_el8.7.0+3497+c65299e7 | ALSA-2023:1583 |
| AlmaLinux:8 | npm | 1:8.19.3-1.16.19.1.1.module_el8.7.0+3496+a59a3324 | ALSA-2023:1582 |
| AlmaLinux:9 | npm | 1:8.19.3-1.16.19.1.1.el9_2 | ALSA-2023:2655 |
| AlmaLinux:9 | npm | 1:9.5.0-1.18.14.2.2.module_el9.2.0+29+de583a0b | ALSA-2023:2654 |
| Alpine:v3.20 | nodejs | 18.14.1-r0 | ALPINE-CVE-2023-23936 |
| Alpine:v3.21 | nodejs | 18.14.1-r0 | ALPINE-CVE-2023-23936 |
| Alpine:v3.22 | nodejs | 18.14.1-r0 | ALPINE-CVE-2023-23936 |
| Alpine:v3.23 | nodejs | 18.14.1-r0 | ALPINE-CVE-2023-23936 |
| Alpine:v3.24 | nodejs | 18.14.1-r0 | ALPINE-CVE-2023-23936 |
| Debian:12 | node-undici | 5.15.0+dfsg1+~cs20.10.9.3-1+deb12u1 | DEBIAN-CVE-2023-23936 |
| Debian:13 | node-undici | 5.19.1+dfsg1+~cs20.10.9.5-1 | DEBIAN-CVE-2023-23936 |
| Debian:14 | node-undici | 5.19.1+dfsg1+~cs20.10.9.5-1 | DEBIAN-CVE-2023-23936 |
| Rocky Linux:8 | nodejs | 1:16.19.1-1.module+el8.7.0+1178+d52dba78 | RLSA-2023:1582 |
| Rocky Linux:8 | nodejs | 1:18.14.2-2.module+el8.7.0+1177+510ae886 | RLSA-2023:1583 |
| Rocky Linux:9 | nodejs | 1:16.19.1-1.el9_2 | RLSA-2023:2655 |
| Rocky Linux:8 | nodejs-nodemon | 0:2.0.20-2.module+el8.7.0+1108+49363b0d | RLSA-2023:1583 |
| Rocky Linux:8 | nodejs-nodemon | 0:2.0.20-3.module+el8.7.0+1178+d52dba78 | RLSA-2023:1582 |
| Rocky Linux:9 | nodejs-nodemon | 0:2.0.20-3.el9_2 | RLSA-2023:2655 |
| Rocky Linux:8 | nodejs-packaging | 0:2021.06-4.module+el8.7.0+1072+5b168780 | RLSA-2023:1583 |
| Rocky Linux:8 | nodejs-packaging | 0:25-1.module+el8.6.0+1046+80feca58 | RLSA-2023:1582 |
| Rocky Linux:9 | nodejs-packaging | 0:2021.06-4.module+el9.7.0+40025+0e0cf6b2 | RLSA-2023:2654 |
| Rocky Linux:9 | nodejs-packaging | 0:2021.06-4.module+el9.7.0+40022+9ecc286c | RLSA-2023:2654 |
| Rocky Linux:9 | nodejs-packaging | 0:2021.06-4.module+el9.7.0+40017+f0db1785 | RLSA-2023:2654 |
| Rocky Linux:9 | nodejs-packaging | 0:2021.06-4.module+el9.7.0+40018+a011993d | RLSA-2023:2654 |
| npm | undici | 5.19.1 | GHSA-5r9g-qh6m-jxff |
Affected products (as reported)
Weakness: CWE-93 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
References
- https://github.com/nodejs/undici/security/advisories/GHSA-5r9g-qh6m-jxff x_refsource_CONFIRM
- https://github.com/nodejs/undici/commit/a2eff05401358f6595138df963837c24348f2034 x_refsource_MISC
- https://hackerone.com/reports/1820955 x_refsource_MISC
- https://github.com/nodejs/undici/releases/tag/v5.19.1 x_refsource_MISC