Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS13eDVqLTU0bW0tcnFxcc0ahg

HTTP request smuggling in netty

Impact

Netty currently just skips control chars when these are present at the beginning / end of the header name. We should better fail fast as these are not allowed by the spec and could lead to HTTP request smuggling.

Failing to do the validation might cause netty to "sanitize" header names before it forward these to another remote system when used as proxy. This remote system can't see the invalid usage anymore and so not do the validation itself.

Permalink: https://github.com/advisories/GHSA-wx5j-54mm-rqqq
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS13eDVqLTU0bW0tcnFxcc0ahg
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: over 2 years ago
Updated: 9 months ago

CVSS Score: 6.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Identifiers: GHSA-wx5j-54mm-rqqq, CVE-2021-43797
References:

• https://github.com/netty/netty/security/advisories/GHSA-wx5j-54mm-rqqq
• https://github.com/netty/netty/commit/07aa6b5938a8b6ed7a6586e066400e2643897323
• https://nvd.nist.gov/vuln/detail/CVE-2021-43797
• https://github.com/netty/netty/pull/11891
• https://security.netapp.com/advisory/ntap-20220107-0003/
• https://www.oracle.com/security-alerts/cpuapr2022.html
• https://www.oracle.com/security-alerts/cpujul2022.html
• https://lists.debian.org/debian-lts-announce/2023/01/msg00008.html
• https://www.debian.org/security/2023/dsa-5316
• https://github.com/advisories/GHSA-wx5j-54mm-rqqq

Repository: https://github.com/netty/netty
Blast Radius: 27.1

Affected Packages