Medium severity4.2NVD Advisory· Published Jun 11, 2019· Updated Jun 17, 2026
CVE-2019-0197
CVE-2019-0197
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
162.4.34 - 2.4.38+ 1 more
- (no CPE)range: 2.4.34 - 2.4.38
- (no CPE)range: 2.4.34 to 2.4.38
- osv-coords14 versionspkg:rpm/almalinux/mod_mdpkg:rpm/opensuse/apache2&distro=openSUSE%20Leap%2015.0pkg:rpm/suse/apache2&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4pkg:rpm/suse/apache2&distro=SUSE%20OpenStack%20Cloud%207
< 1:2.0.8-8.module_el8.5.0+2609+b30d9eec+ 13 more
- (no CPE)range: < 1:2.0.8-8.module_el8.5.0+2609+b30d9eec
- (no CPE)range: < 2.4.33-lp150.2.17.1
- (no CPE)range: < 2.4.23-29.40.1
- (no CPE)range: < 2.4.33-3.15.1
- (no CPE)range: < 2.4.23-29.40.1
- (no CPE)range: < 2.4.23-29.40.1
- (no CPE)range: < 2.4.23-29.40.1
- (no CPE)range: < 2.4.23-29.40.1
- (no CPE)range: < 2.4.23-29.40.1
- (no CPE)range: < 2.4.23-29.40.1
- (no CPE)range: < 2.4.23-29.40.1
- (no CPE)range: < 2.4.23-29.40.1
- (no CPE)range: < 2.4.23-29.40.1
- (no CPE)range: < 2.4.23-29.40.1
Patches
Vulnerability mechanics
References
30- lists.opensuse.org/opensuse-security-announce/2019-04/msg00051.htmlnvdMailing ListPatchThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00061.htmlnvdMailing ListPatchThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00084.htmlnvdMailing ListPatchThird Party Advisory
- www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.htmlnvdPatchThird Party Advisory
- www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.htmlnvdPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2019/04/02/2nvdMailing ListThird Party Advisory
- www.securityfocus.com/bid/107665nvdThird Party AdvisoryVDB Entry
- access.redhat.com/errata/RHSA-2019:3932nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2019:3933nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2019:3935nvdThird Party Advisory
- httpd.apache.org/security/vulnerabilities_24.htmlnvdVendor Advisory
- security.netapp.com/advisory/ntap-20190617-0002/nvdThird Party Advisory
- support.f5.com/csp/article/K44591505nvdThird Party Advisory
- support.hpe.com/hpsc/doc/public/displaynvdThird Party Advisory
- usn.ubuntu.com/4113-1/nvdThird Party Advisory
- www.oracle.com/security-alerts/cpuapr2020.htmlnvdThird Party Advisory
- lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/e0b8f6e858b1c8ec2ce8e291a2c543d438915037c7af661ab6d33808%40%3Cdev.httpd.apache.org%3Envd
- lists.apache.org/thread.html/r03ee478b3dda3e381fd6189366fa7af97c980d2f602846eef935277d%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/rd2fb621142e7fa187cfe12d7137bf66e7234abcbbcd800074c84a538%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/re473305a65b4db888e3556e4dae10c2a04ee89dcff2e26ecdbd860a9%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3Envd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WETXNQWNQLWHV6XNW6YTO5UGDTIWAQGT/nvd
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