GHSA-9jxr-mwpp-w643: Httpsoft/http message Improper Header Validation Vulnerability

MODERATE
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CVSS 5.3
CWE-436
Published
Advisory Summary

GHSA-9jxr-mwpp-w643 is a MODERATE (CVSS 5.3) improper header validation vulnerability (CWE-436: Interpretation Conflict) affecting Httpsoft/http message libraries in the Packagist ecosystem. The issue involves improper header validation in httpsoft/http-message. Remediation is available by upgrading affected packages to version 1.0.12.

GHSA-9jxr-mwpp-w643 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-9jxr-mwpp-w643
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-436: Interpretation Conflict
Affected Product Httpsoft/http message
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity Low (I:L)
Availability None (A:N)

How to Fix GHSA-9jxr-mwpp-w643

To remediate this vulnerability, upgrade all affected Httpsoft/http message dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

httpsoft/http-message fixed: 1.0.12 
Upgrade httpsoft/http-message to 1.0.12
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for httpsoft/http-message

How to Check if You Are Affected

To determine whether your application is affected by GHSA-9jxr-mwpp-w643, inspect your project dependencies for Httpsoft/http message:

inspect dependencies for httpsoft/http-message

Analyze the terminal output to locate any version of Httpsoft/http message in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.0.12), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-436: Interpretation Conflict, where product a handles inputs or steps differently than product b, which causes a to perform incorrect actions based on its perception of b's state. In Httpsoft/http message, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact Improper header parsing. An attacker could sneak in a newline (`\n`) into both the header names and values. While the specification states that `\r\n\r\n` is used to terminate the header list, many servers in the wild will also accept `\n\n`. ### Patches The issue is patched in 1.0.12. ### Workarounds There are no known workarounds. ### References * https://www.rfc-editor.org/rfc/rfc7230#section-3.2.4

GHSA-9jxr-mwpp-w643 Affected Httpsoft/http message Versions

1 component(s)
Fixed Versions:
1.0.12
Product / Package Ecosystem Affected Versions Fixed Version
httpsoft/http-message
 Packagist
< 1.0.12
1.0.12

References

GitHub Advisory / Wiki ADVISORY
https://github.com/guzzle/psr7/security/advisories/GHSA-wxmh-65f7-jcvw
GitHub Advisory / Wiki ADVISORY
https://github.com/httpsoft/http-message/security/advisories/GHSA-9jxr-mwpp-w643
NVD — GHSA-9jxr-mwpp-w643 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-29197
Httpsoft/http message Source Repository REPOSITORY
https://github.com/httpsoft/http-message

Frequently Asked Questions

What is GHSA-9jxr-mwpp-w643?
GHSA-9jxr-mwpp-w643 is a security vulnerability in Httpsoft/http message involving Improper header validation in httpsoft/http-message under CWE-436: Interpretation Conflict.
Which Httpsoft/http message versions are affected?
Affected versions include releases prior to 1.0.12 across affected packages: httpsoft/http-message.
What version fixes GHSA-9jxr-mwpp-w643?
Upgrading to 1.0.12 (or the latest patched release for your respective branch) resolves the vulnerability.
Is httpsoft/http-message affected?
Yes, httpsoft/http-message is affected in releases prior to 1.0.12. Upgrade your dependency to 1.0.12 or later.
What is the CVSS score of GHSA-9jxr-mwpp-w643?
GHSA-9jxr-mwpp-w643 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
What CWE is associated with GHSA-9jxr-mwpp-w643?
GHSA-9jxr-mwpp-w643 is classified under CWE-436: Interpretation Conflict (Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state.).
How can I check Packagist dependencies for GHSA-9jxr-mwpp-w643?
Run the dependency tree command: 'inspect dependencies for httpsoft/http-message'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-9jxr-mwpp-w643",
  "modified" : "2023-04-21T20:27:12Z",
  "published" : "2023-04-21T20:27:12Z",
  "aliases" : [ ],
  "summary" : "Improper header validation in httpsoft/http-message",
  "details" : "### Impact\n\nImproper header parsing. An attacker could sneak in a newline (`\\n`) into both the header names and values. While the specification states that `\\r\\n\\r\\n` is used to terminate the header list, many servers in the wild will also accept `\\n\\n`.\n\n### Patches\n\nThe issue is patched in 1.0.12.\n\n### Workarounds\n\nThere are no known workarounds.\n\n### References\n\n* https://www.rfc-editor.org/rfc/rfc7230#section-3.2.4",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "httpsoft/http-message"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.0.12"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/guzzle/psr7/security/advisories/GHSA-wxmh-65f7-jcvw"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/httpsoft/http-message/security/advisories/GHSA-9jxr-mwpp-w643"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-29197"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/httpsoft/http-message"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-436" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-04-21T20:27:12Z",
    "nvd_published_at" : null
  }
}