Strix
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CVE-2019-0190

HIGHCVSS 7.5/10EPSS 59.94%

Last modified

CVE-2019-0190 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 59.94% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
7.5/10

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

EPSS Probability
59.94%

99.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
ApacheHttp Server2.4.37
OracleEnterprise Manager Ops Center12.3.3
OracleHospitality Guest Access4.2.0
OracleHospitality Guest Access4.2.1
OracleInstantis Enterprisetrack17.1
OracleInstantis Enterprisetrack17.2
OracleInstantis Enterprisetrack17.3
OracleRetail Xstore Point Of Service7.0
OracleRetail Xstore Point Of Service7.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-0190?
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.
How severe is CVE-2019-0190?
CVE-2019-0190 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 59.94% probability of exploitation in the next 30 days.
How do I fix CVE-2019-0190?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-0190?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST