CVE-2019-0190 Affecting mod24_ssl package, versions <1:2.4.38-1.86.amzn1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.8% (83rd percentile)

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  • Snyk IDSNYK-AMZN201803-MOD24SSL-1717487
  • published27 Sept 2021
  • disclosed30 Jan 2019

Introduced: 30 Jan 2019

CVE-2019-0190  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 mod24_ssl to version 1:2.4.38-1.86.amzn1 or higher.
This issue was patched in ALAS-2019-1166.

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 bug exists in the way mod_ssl handled client renegotiations. A remote attacker could send a carefully crafted request that would cause mod_ssl to enter a loop leading to a denial of service. This bug can be only triggered with Apache HTTP Server version 2.4.37 when using OpenSSL version 1.1.1 or later, due to an interaction in changes to handling of renegotiation attempts.

References

CVSS Scores

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