CVE & CISA-KEV Catalog

CVE-2022-37436

MEDIUMEPSS 99th pctl
5.3
CVSS v3
NVD

Description

Prior to Apache HTTP Server 2.4.55, a malicious backend can cause the response headers to be truncated early, resulting in some headers being incorporated into the response body. If the later headers have any security purpose, they will not be interpreted by the client.

How to fix

Remediation Available
apache2Debian
Fixed in:2.4.56-1~deb11u1CVE-2022-37436
Fixed in:2.4.55-1CVE-2022-37436
Fixed in:2.4.55-1CVE-2022-37436
Fixed in:2.4.55-1CVE-2022-37436
jbcs-httpd24-aprRocky
Fixed in:0:1.7.0-8.el7jbcsRHSA-2023:4629
Fixed in:0:1.7.0-8.el7jbcsRHSA-2023:4629
Fixed in:0:1.7.0-8.el8jbcsRHSA-2023:4629
Fixed in:0:1.7.0-8.el8jbcsRHSA-2023:4629
jbcs-httpd24-aprRed Hat / RHEL
Fixed in:0:1.7.0-8.el7jbcsRHSA-2023:4629
Fixed in:0:1.7.0-8.el7jbcsRHSA-2023:4629
Fixed in:0:1.7.0-8.el8jbcsRHSA-2023:4629
Fixed in:0:1.7.0-8.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-debuginfoRed Hat / RHEL
Fixed in:0:1.7.0-8.el7jbcsRHSA-2023:4629
Fixed in:0:1.7.0-8.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-debuginfoRocky
Fixed in:0:1.7.0-8.el7jbcsRHSA-2023:4629
Fixed in:0:1.7.0-8.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-develRed Hat / RHEL
Fixed in:0:1.7.0-8.el7jbcsRHSA-2023:4629
Fixed in:0:1.7.0-8.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-develRocky
Fixed in:0:1.7.0-8.el7jbcsRHSA-2023:4629
Fixed in:0:1.7.0-8.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-utilRed Hat / RHEL
Fixed in:0:1.6.1-102.el7jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el7jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-utilRocky
Fixed in:0:1.6.1-102.el7jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el7jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-util-debuginfoRed Hat / RHEL
Fixed in:0:1.6.1-102.el7jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-util-debuginfoRocky
Fixed in:0:1.6.1-102.el7jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-util-develRocky
Fixed in:0:1.6.1-102.el7jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-util-develRed Hat / RHEL
Fixed in:0:1.6.1-102.el7jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-util-ldapRed Hat / RHEL
Fixed in:0:1.6.1-102.el7jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-util-ldapRocky
Fixed in:0:1.6.1-102.el7jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-util-ldap-debuginfoRocky
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-util-ldap-debuginfoRed Hat / RHEL
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-util-mysqlRocky
Fixed in:0:1.6.1-102.el7jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-util-mysqlRed Hat / RHEL
Fixed in:0:1.6.1-102.el7jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-util-mysql-debuginfoRed Hat / RHEL
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-util-mysql-debuginfoRocky
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-util-nssRed Hat / RHEL
Fixed in:0:1.6.1-102.el7jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-util-nssRocky
Fixed in:0:1.6.1-102.el7jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-util-nss-debuginfoRocky
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-util-nss-debuginfoRed Hat / RHEL
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-util-odbcRed Hat / RHEL
Fixed in:0:1.6.1-102.el7jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-util-odbcRocky
Fixed in:0:1.6.1-102.el7jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-util-odbc-debuginfoRocky
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-util-odbc-debuginfoRed Hat / RHEL
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629
jbcs-httpd24-apr-util-opensslRed Hat / RHEL
Fixed in:0:1.6.1-102.el7jbcsRHSA-2023:4629
Fixed in:0:1.6.1-102.el8jbcsRHSA-2023:4629

This vulnerability affects an unusually large number of packages. The highest-confidence fixes are shown above; the full list is longer. Check the referenced advisories for complete coverage.

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityLow
AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Exploit Intelligence

57.94%probability of exploitation in 30 days
99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

References

Vendor Advisory1
Other references1

Related Vulnerabilities

Other CWE-113 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2024-52875High8.830%--
CVE-2016-5699Medium6.116%-Fix
CVE-2016-8024High8.17.3%--
CVE-2017-17742Medium5.36.4%-Fix
CVE-2016-5325Medium6.15.9%-Fix
CVE-2018-16979Medium6.13.6%--

Common questions

How do I fix CVE-2022-37436?

Published advisories record a fix for 107 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2022-37436 being actively exploited?

Not that we know of. CVE-2022-37436 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 57.9% is the estimated probability that it will be exploited in the next 30 days. That is higher than 99% of all scored CVEs.

How severe is CVE-2022-37436?

CVE-2022-37436 has a CVSS v3 base score of 5.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2022-37436 affect?

Published advisories record a fix for apache2 (Debian), jbcs-httpd24-apr (Rocky), jbcs-httpd24-apr (Red Hat / RHEL), jbcs-httpd24-apr-debuginfo (Red Hat / RHEL), and 103 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-04-04.