CVE-2019-0197

MEDIUM
4.2
CVSS Score
Published: June 11, 2019 at 09:35 PM UTC
Updated: June 17, 2026 at 02:07 AM UTC
12 products affected across 6 vendorsFedoraUbuntu LinuxLeap

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Severity
MEDIUM4.2
Exploit prediction
EPSS 9%

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.

Affected

References (30)

Vendor Advisoryx_refsource_SUSEMailing ListPatchThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00051.html
Vendor Advisoryx_refsource_SUSEMailing ListPatchThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00061.html
Vendor Advisoryx_refsource_SUSEMailing ListPatchThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00084.html
Mailing Listx_refsource_MLISTThird Party Advisory
http://www.openwall.com/lists/oss-security/2019/04/02/2
VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/107665
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:3932
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:3933
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:3935

CVSS

Attack Vector
NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-444

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