Vulnerability · Published Oct 12, 2023 · Assigned by GitHub_M
CVE-2023-45133Babel vulnerable to arbitrary code execution when compiling specifically crafted malicious code
Critical 9.4
In plain English
A critical-severity security flaw in babel from babel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Babel is a compiler for writingJavaScript. In `@babel/traverse` prior to versions 7.23.2 and 8.0.0-alpha.4 and all versions of `babel-traverse`, using Babel to compile code that was specifically crafted by an attacker can lead to arbitrary code execution during compilation, when using plugins that rely on the `path.evaluate()`or `path.evaluateTruthy()` internal Babel methods. Known affected plugins are `@babel/plugin-transform-runtime`; `@babel/preset-env` when using its `useBuiltIns` option; and any "polyfill provider" plugin that depends on `@babel/helper-define-polyfill-provider`, such as `babel-plugin-polyfill-corejs3`, `babel-plugin-polyfill-corejs2`, `babel-plugin-polyfill-es-shims`, `babel-plugin-polyfill-regenerator`. No other plugins under the `@babel/` namespace are impacted, but third-party plugins might be. Users that only compile trusted code are not impacted. The vulnerability has been fixed in `@babel/traverse@7.23.2` and `@babel/traverse@8.0.0-alpha.4`. Those who cannot upgrade `@babel/traverse` and are using one of the affected packages mentioned above should upgrade them to their latest version to avoid triggering the vulnerable code path in affected `@babel/traverse` versions: `@babel/plugin-transform-runtime` v7.23.2, `@babel/preset-env` v7.23.2, `@babel/helper-define-polyfill-provider` v0.4.3, `babel-plugin-polyfill-corejs2` v0.4.6, `babel-plugin-polyfill-corejs3` v0.8.5, `babel-plugin-polyfill-es-shims` v0.10.0, `babel-plugin-polyfill-regenerator` v0.5.3.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | node-babel7 | 7.20.15+ds1+~cs214.269.168-3+deb12u1 | DSA-5528-1 |
| Debian:12 | node-babel7 | 7.20.15+ds1+~cs214.269.168-3+deb12u1 | DEBIAN-CVE-2023-45133 |
| Debian:13 | node-babel7 | 7.20.15+ds1+~cs214.269.168-5 | DEBIAN-CVE-2023-45133 |
| Debian:14 | node-babel7 | 7.20.15+ds1+~cs214.269.168-5 | DEBIAN-CVE-2023-45133 |
| Ubuntu:22.04:LTS | node-babel7 | no fix listed | UBUNTU-CVE-2023-45133 |
| Ubuntu:24.04:LTS | node-babel7 | no fix listed | UBUNTU-CVE-2023-45133 |
| npm | @babel/traverse | 8.0.0-alpha.4 | GHSA-67hx-6x53-jw92 |
| npm | @babel/traverse | 7.23.2 | GHSA-67hx-6x53-jw92 |
| npm | babel-traverse | no fix listed | GHSA-67hx-6x53-jw92 |
Affected products (as reported)
Weakness: CWE-184 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
References
- https://github.com/babel/babel/security/advisories/GHSA-67hx-6x53-jw92 x_refsource_CONFIRM
- https://github.com/babel/babel/pull/16033 x_refsource_MISC
- https://github.com/babel/babel/commit/b13376b346946e3f62fc0848c1d2a23223314c82 x_refsource_MISC
- https://github.com/babel/babel/releases/tag/v7.23.2 x_refsource_MISC
- https://github.com/babel/babel/releases/tag/v8.0.0-alpha.4 x_refsource_MISC
- https://www.debian.org/security/2023/dsa-5528
- https://lists.debian.org/debian-lts-announce/2023/10/msg00026.html