CVE-2019-0197
MEDIUMCVSS 4.2/10EPSS 8.44%
Last modified
CVE-2019-0197 is a medium-severity vulnerability rated 4.2/10 on the CVSS scale. 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. EPSS estimates a 8.44% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apache | Http Server | >= 2.4.34, <= 2.4.38 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 19.04 |
| Fedoraproject | Fedora | 30 |
| Opensuse | Leap | 15.0 |
| Opensuse | Leap | 42.3 |
| Redhat | Jboss Core Services | 1.0 |
| Oracle | Communications Session Report Manager | 8.0.0 |
| Oracle | Communications Session Report Manager | 8.1.0 |
| Oracle | Communications Session Report Manager | 8.1.1 |
| Oracle | Communications Session Report Manager | 8.2.0 |
| Oracle | Communications Session Route Manager | 8.0.0 |
| Oracle | Communications Session Route Manager | 8.1.0 |
| Oracle | Communications Session Route Manager | 8.1.1 |
| Oracle | Communications Session Route Manager | 8.2.0 |
| Oracle | Enterprise Manager Ops Center | 12.3.3 |
| Oracle | Enterprise Manager Ops Center | 12.4.0 |
| Oracle | Http Server | 12.2.1.3.0 |
| 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://lists.opensuse.org/opensuse-security-announce/2019-04/msg00051.htmlMailing List, Patch, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00061.htmlMailing List, Patch, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00084.htmlMailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/04/02/2Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/107665Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:3932Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3933Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3935Third Party Advisory
- https://httpd.apache.org/security/vulnerabilities_24.htmlVendor Advisory
- https://security.netapp.com/advisory/ntap-20190617-0002/Third Party Advisory
- https://support.f5.com/csp/article/K44591505Third Party Advisory
- https://usn.ubuntu.com/4113-1/Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2020.htmlThird Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.htmlPatch, Third Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.htmlPatch, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00051.htmlMailing List, Patch, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00061.htmlMailing List, Patch, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00084.htmlMailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/04/02/2Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/107665Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2019:3932Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3933Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3935Third Party Advisory
- https://httpd.apache.org/security/vulnerabilities_24.htmlVendor Advisory
- https://security.netapp.com/advisory/ntap-20190617-0002/Third Party Advisory
- https://support.f5.com/csp/article/K44591505Third Party Advisory
- https://usn.ubuntu.com/4113-1/Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2020.htmlThird Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.htmlPatch, Third Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.htmlPatch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-0197?
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.
How severe is CVE-2019-0197?
CVE-2019-0197 has a CVSS score of 4.2/10 (MEDIUM severity). The EPSS model estimates a 8.44% probability of exploitation in the next 30 days.
How do I fix CVE-2019-0197?
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.
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Are you affected by CVE-2019-0197?
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