CVE-2019-0197
mediumpriority · track · 20EPSS 0.086 · 95 %ileDEEURUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.9–4.9
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (47)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2023-2047Apache HTTP Server: Mehrere SchwachstellenDeutsch2019-04-02csaf · cert_bundDE
Ein entfernter, anonymer, authentisierter oder lokaler Angreifer kann mehrere Schwachstellen im Apache HTTP Server ausnutzen, um seine Rechte zu erweitern, Sicherheitsrestriktionen zu umgehen oder um einen Denial of Service Angriff durchzuführen.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (107)
External citations — patches, advisories, analysis.
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00051.htmlcnnvd
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00061.htmlcnnvd
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00084.htmlcnnvd
- http://www.apache.org/cnnvd
- http://www.nsfocus.net/vulndb/43501cnnvd
- http://www.openwall.com/lists/oss-security/2019/04/02/2cnnvd
- http://www.securityfocus.com/bid/107665cnnvd
- https://access.redhat.com/errata/RHSA-2019:3932cnnvd
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