Medium severity · published Jun 11, 2019
CVE-2019-0197
A vulnerability was found in Apache HTTP Server 2.4.34 to 2.4.38
4.2
CVSS
8.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)8.6% · higher than 95% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HS
HTTP Server · Apache
2.4.34 through 2.4.38 · source: NVD
CS
Communications Session Report Manager · Oracle
8.0.0; 8.1.0; 8.1.1; 8.2.0 · source: NVD
CS
Communications Session Route Manager · Oracle
8.0.0; 8.1.0; 8.1.1; 8.2.0 · source: NVD
EM
Enterprise Manager Ops Center · Oracle
12.3.3; 12.4.0 · source: NVD
FE
Fedora · Fedoraproject
30 · source: NVD
IE
Instantis Enterprisetrack · Oracle
17.1; 17.2; 17.3 · source: NVD
JC
LE
Leap · Opensuse
15.0; 42.3 · source: NVD
UL
Ubuntu Linux · Canonical
16.04; 18.04; 19.04 · source: NVD
Affected product
HS
HTTP Server
Apache
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