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/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apache | Http Server | 2.4.37 |
| Oracle | Enterprise Manager Ops Center | 12.3.3 |
| Oracle | Hospitality Guest Access | 4.2.0 |
| Oracle | Hospitality Guest Access | 4.2.1 |
| Oracle | Instantis Enterprisetrack | 17.1 |
| Oracle | Instantis Enterprisetrack | 17.2 |
| Oracle | Instantis Enterprisetrack | 17.3 |
| Oracle | Retail Xstore Point Of Service | 7.0 |
| Oracle | Retail Xstore Point Of Service | 7.1 |
References
- http://www.securityfocus.com/bid/106743Third Party Advisory, VDB Entry
- https://httpd.apache.org/security/vulnerabilities_24.htmlVendor Advisory
- https://security.gentoo.org/glsa/201903-21Third Party Advisory
- https://security.netapp.com/advisory/ntap-20190125-0001/Third Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlThird Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.htmlThird Party Advisory
- http://www.securityfocus.com/bid/106743Third Party Advisory, VDB Entry
- https://httpd.apache.org/security/vulnerabilities_24.htmlVendor Advisory
- https://security.gentoo.org/glsa/201903-21Third Party Advisory
- https://security.netapp.com/advisory/ntap-20190125-0001/Third Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlThird Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.htmlThird Party Advisory
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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2019-0190?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST