MEDIUM5.3
GHSA-jc97-h3h9-7xh6
Regular Expression Denial of Service in Deno.upgradeWebSocket API
Details
### Impact Versions of the package deno before 1.31.0 are vulnerable to Regular Expression Denial of Service (ReDoS) due to the upgradeWebSocket function, which contains regexes in the form of /s*,s*/, used for splitting the Connection/Upgrade header. A specially crafted Connection/Upgrade header can be used to significantly slow down a web socket server.
### Patches It is recommended that users upgrade to Deno 1.31.0.
Are you affected?
Enter the version of the package you're using.
Affected packages
crates.io/deno
Introduced in:
1.12.0Fixed in: 1.31.0Upgrade deno to 1.31.0 or newer (ecosystem crates.io).
References
- https://github.com/denoland/deno/security/advisories/GHSA-jc97-h3h9-7xh6[WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2023-26103[ADVISORY]
- https://github.com/denoland/deno/pull/17722[WEB]
- https://github.com/denoland/deno/commit/cf06a7c7e672880e1b38598fe445e2c50b4a9d06[WEB]
- https://github.com/denoland/deno[PACKAGE]
- https://github.com/denoland/deno/blob/2b247be517d789a37e532849e2e40b724af0918f/ext/http/01_http.js#L395-L409[WEB]
- https://github.com/denoland/deno/releases/tag/v1.31.0[WEB]
- https://security.snyk.io/vuln/SNYK-RUST-DENO-3315970[WEB]