HTTP Request Smuggling Affecting mod24_ssl package, versions <1:2.4.39-1.87.amzn1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.27% (67th percentile)

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  • Snyk IDSNYK-AMZN201803-MOD24SSL-1717559
  • published27 Sept 2021
  • disclosed11 Jun 2019

Introduced: 11 Jun 2019

CVE-2019-0197  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 mod24_ssl to version 1:2.4.39-1.87.amzn1 or higher.
This issue was patched in ALAS-2019-1189.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mod24_ssl package and not the mod24_ssl package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

A vulnerability was found in Apache HTTP Server 2.4.34 to 2.4.38. When HTTP/2 was enabled for a http: host or H2Upgrade was enabled for h2 on a https: host, an Upgrade request from http/1.1 to http/2 that was not the first request on a connection could lead to a misconfiguration and crash. Server that never enabled the h2 protocol or that only enabled it for https: and did not set "H2Upgrade on" are unaffected by this issue.

References

CVSS Scores

version 3.1