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  5. CVE-2019-14243

CVE-2019-14243: Improper Input Validation

May 24, 2022 (updated July 14, 2023)

headerv2.go in mastercactapus proxyprotocol before 0.0.2, as used in the mastercactapus caddy-proxyprotocol plugin through 0.0.2 for Caddy, allows remote attackers to cause a denial of service (webserver panic and daemon crash) via a crafted HAProxy PROXY v2 request with truncated source/destination address data.

References

  • caddy.community/t/dos-in-http-proxyprotocol-plugin/6014
  • github.com/advisories/GHSA-85c5-ccm8-vr96
  • github.com/mastercactapus/caddy-proxyprotocol/issues/8
  • github.com/mastercactapus/proxyprotocol/commit/5c4a101121fc3e868026189c7a73f7f19eef90ac
  • github.com/mastercactapus/proxyprotocol/compare/ef496d7...5c4a101
  • github.com/mastercactapus/proxyprotocol/issues/1
  • github.com/mastercactapus/proxyprotocol/releases/tag/v0.0.2
  • nvd.nist.gov/vuln/detail/CVE-2019-14243

Code Behaviors & Features

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Affected versions

All versions before 0.0.2

Fixed versions

  • v0.0.2

Solution

Upgrade to version 0.0.2 or above.

Impact 7.5 HIGH

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

Learn more about CVSS

Weakness

  • CWE-20: Improper Input Validation

Source file

go/github.com/mastercactapus/proxyprotocol/CVE-2019-14243.yml

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