# CVE-2021-22918: Node.js 14 and 2 others: Out-of-bounds Read (CWE-125)

CVE-2021-22918 is fixed in 13 products on 2 platforms, first by Node.js 12 12.22.2, released July 1, 2021. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-22918
- Priority: Routine
- CVSS: 5.3 (Moderate)
- EPSS: 0.2313
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 1, 2021
- Weakness: CWE-125: Out-of-bounds Read (CWE-125)
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-22918

## Description

Node.js before 16.4.1, 14.17.2, 12.22.2 is vulnerable to an out-of-bounds read when uv__idna_toascii() is used to convert strings to ASCII. The pointer p is read and increased without checking whether it is beyond pe, with the latter holding a pointer to the end of the buffer. This can lead to information disclosures or crashes. This function can be triggered via uv_getaddrinfo().

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Node.js 12 | 12.22.2 | [Node.js 12 12.22.2](https://patchblox.com/security/data/fix/windows-app/openjs.nodejs.12-12.22.2.md) | Jul 1, 2021 |
| Windows apps | Node.js 14 | 14.17.2 | [Node.js 14 14.17.2](https://patchblox.com/security/data/fix/windows-app/openjs.nodejs.14-14.17.2.md) | Jul 1, 2021 |
| Windows apps | Node.js 16 | 16.4.1 | [Node.js 16 16.4.1](https://patchblox.com/security/data/fix/windows-app/openjs.nodejs.16-16.4.1.md) | Jul 1, 2021 |
| Linux | libuv RHEL 8 | 1:1.41.1-1.el8_4 | [RHSA-2021:3075](https://patchblox.com/security/data/fix/linux/rhsa-2021-3075.md) | Aug 10, 2021 |
| Linux | libuv ol 8 | 1:1.41.1-1.el8_4 | [ELSA-2021-3075](https://patchblox.com/security/data/fix/linux/elsa-2021-3075.md) | Aug 11, 2021 |
| Linux | libuv-devel RHEL 8 | 1:1.41.1-1.el8_4 | [RHSA-2021:3075](https://patchblox.com/security/data/fix/linux/rhsa-2021-3075.md) | Aug 10, 2021 |
| Linux | libuv-devel ol 8 | 1:1.41.1-1.el8_4 | [ELSA-2021-3075](https://patchblox.com/security/data/fix/linux/elsa-2021-3075.md) | Aug 11, 2021 |
| Linux | libuv1 Ubuntu 20.04 LTS (focal) | 1.34.2-1ubuntu1.3 | [libuv1 1.34.2-1ubuntu1.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libuv1-1.34.2-1ubuntu1.3.md) | Jul 1, 2021 |
| Linux | nodejs RHEL 8 | 1:14.17.3-2.module+el8.4.0+11738+3bd42762 | [RHSA-2021:3074](https://patchblox.com/security/data/fix/linux/rhsa-2021-3074.md) | Aug 10, 2021 |
| Linux | nodejs ol 8 | 1:12.22.3-2.module+el8.4.0+20281+eb64e322 | [ELSA-2021-3073](https://patchblox.com/security/data/fix/linux/elsa-2021-3073.md) | Aug 12, 2021 |
| Linux | nodejs-devel RHEL 8 | 1:14.17.3-2.module+el8.4.0+11738+3bd42762 | [RHSA-2021:3074](https://patchblox.com/security/data/fix/linux/rhsa-2021-3074.md) | Aug 10, 2021 |
| Linux | nodejs-devel ol 8 | 1:12.22.3-2.module+el8.4.0+20281+eb64e322 | [ELSA-2021-3073](https://patchblox.com/security/data/fix/linux/elsa-2021-3073.md) | Aug 12, 2021 |
| Linux | nodejs-docs RHEL 8 | 1:14.17.3-2.module+el8.4.0+11738+3bd42762 | [RHSA-2021:3074](https://patchblox.com/security/data/fix/linux/rhsa-2021-3074.md) | Aug 10, 2021 |
| Linux | nodejs-docs ol 8 | 1:12.22.3-2.module+el8.4.0+20281+eb64e322 | [ELSA-2021-3073](https://patchblox.com/security/data/fix/linux/elsa-2021-3073.md) | Aug 12, 2021 |
| Linux | nodejs-full-i18n RHEL 8 | 1:14.17.3-2.module+el8.4.0+11738+3bd42762 | [RHSA-2021:3074](https://patchblox.com/security/data/fix/linux/rhsa-2021-3074.md) | Aug 10, 2021 |
| Linux | nodejs-full-i18n ol 8 | 1:12.22.3-2.module+el8.4.0+20281+eb64e322 | [ELSA-2021-3073](https://patchblox.com/security/data/fix/linux/elsa-2021-3073.md) | Aug 12, 2021 |
| Linux | nodejs-nodemon RHEL 8 | 0:2.0.3-1.module+el8.3.0+6519+9f98ed83 | [RHSA-2021:3074](https://patchblox.com/security/data/fix/linux/rhsa-2021-3074.md) | Aug 10, 2021 |
| Linux | nodejs-nodemon ol 8 | 0:2.0.3-1.module+el8.4.0+20281+eb64e322 | [ELSA-2021-3073](https://patchblox.com/security/data/fix/linux/elsa-2021-3073.md) | Aug 12, 2021 |
| Linux | nodejs-packaging RHEL 8 | 0:23-3.module+el8.3.0+6519+9f98ed83 | [RHSA-2021:3074](https://patchblox.com/security/data/fix/linux/rhsa-2021-3074.md) | Aug 10, 2021 |
| Linux | nodejs-packaging ol 8 | 0:17-3.module+el8.1.0+5393+aaf413e3 | [ELSA-2021-3073](https://patchblox.com/security/data/fix/linux/elsa-2021-3073.md) | Aug 12, 2021 |
| Linux | npm RHEL 8 | 1:6.14.13-1.14.17.3.2.module+el8.4.0+11738+3bd42762 | [RHSA-2021:3074](https://patchblox.com/security/data/fix/linux/rhsa-2021-3074.md) | Aug 10, 2021 |
| Linux | npm ol 8 | 1:6.14.13-1.12.22.3.2.module+el8.4.0+20281+eb64e322 | [ELSA-2021-3073](https://patchblox.com/security/data/fix/linux/elsa-2021-3073.md) | Aug 12, 2021 |

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