GHSA-hp68-xhvj-x6j6
Suggest an improvement- Source
- https://github.com/advisories/GHSA-hp68-xhvj-x6j6
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/01/GHSA-hp68-xhvj-x6j6/GHSA-hp68-xhvj-x6j6.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-hp68-xhvj-x6j6
- Aliases
- Related
- Published
- 2022-01-06T18:34:18Z
- Modified
- 2025-01-14T10:12:20.643753Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
- Summary
- jsx-slack insufficient patch for CVE-2021-43838 ReDoS
- Details
-
We found the patch for CVE-2021-43838 in jsx-slack v4.5.1 is insufficient to save from Regular Expression Denial of Service (ReDoS) attack.
This vulnerability affects to jsx-slack v4.5.1 and earlier versions.
Impact
If attacker can put a lot of JSX elements into
<blockquote>tag with including multibyte characters, an internal regular expression for escaping characters may consume an excessive amount of computing resources./** @jsxImportSource jsx-slack */ import { Section } from 'jsx-slack' console.log( <Section> <blockquote> {[...Array(40)].map(() => ( <p>亜</p> ))} </blockquote> </Section> )v4.5.1 has released by passing the test against ASCII characters but missed the case of multibyte characters. https://github.com/yhatt/jsx-slack/security/advisories/GHSA-55xv-f85c-248q
Patches
jsx-slack v4.5.2 has updated regular expressions for escaping blockquote characters to prevent catastrophic backtracking. It is also including an updated test case to confirm rendering multiple tags in
<blockquote>with multibyte characters.References
- https://github.com/yhatt/jsx-slack/commit/46bc88391d89d5fda4ce689e18ca080bcdd29ecc
Credits
Thanks to @hieki for finding out this vulnerability.
- Database specific
{ "nvd_published_at": "2021-12-20T22:15:00Z", "cwe_ids": [ "CWE-400" ], "severity": "MODERATE", "github_reviewed": true, "github_reviewed_at": "2022-01-04T20:19:23Z" }- References
-
- https://github.com/yhatt/jsx-slack/security/advisories/GHSA-55xv-f85c-248q
- https://github.com/yhatt/jsx-slack/security/advisories/GHSA-hp68-xhvj-x6j6
- https://nvd.nist.gov/vuln/detail/CVE-2021-43843
- https://github.com/yhatt/jsx-slack/commit/46bc88391d89d5fda4ce689e18ca080bcdd29ecc
- https://github.com/yhatt/jsx-slack/releases/tag/v4.5.2
- https://github.com/yhatt/jsx-slack/security
Affected packages
npm / jsx-slack
Package
- Name
- jsx-slack
- View open source insights on deps.dev
- Purl
- pkg:npm/jsx-slack