CVE-2024-31309 Apache Traffic Server: HTTP/2 CONTINUATION frames can be utilized for DoS attack

2024-04-1012:07:16

CWE-20

apache

www.cve.org

apache traffic server

http/2

dos attack

resource consumption

version 8.0.0

version 8.1.9

version 9.0.0

version 9.2.3

memory limit

upgrade

fix

0.0004 Low

EPSS

Percentile

14.3%

JSON

HTTP/2 CONTINUATION DoS attack can cause Apache Traffic Server to consume more resources on the server. Version from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.3 are affected.

Users can set a new setting (proxy.config.http2.max_continuation_frames_per_minute) to limit the number of CONTINUATION frames per minute. ATS does have a fixed amount of memory a request can use and ATS adheres to these limits in previous releases.
Users are recommended to upgrade to versions 8.1.10 or 9.2.4 which fixes the issue.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Apache Traffic Server",
    "vendor": "Apache Software Foundation",
    "versions": [
      {
        "lessThanOrEqual": "8.1.9",
        "status": "affected",
        "version": "8.0.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "9.2.3",
        "status": "affected",
        "version": "9.0.0",
        "versionType": "semver"
      }
    ]
  }
]