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CVE-2020-11993

HIGHCVSS 7.5/10EPSS 58.72%

Last modified

CVE-2020-11993 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Apache HTTP Server versions 2.4.20 to 2.4.43 When trace/debug was enabled for the HTTP/2 module and on certain traffic edge patterns, logging statements were made on the wrong connection, causing concurrent use of memory pools. Configuring the LogLevel of mod_http2 above "info" will mitigate this vulnerability for unpatched servers.. EPSS estimates a 58.72% chance of exploitation in the next 30 days.

Description

Apache HTTP Server versions 2.4.20 to 2.4.43 When trace/debug was enabled for the HTTP/2 module and on certain traffic edge patterns, logging statements were made on the wrong connection, causing concurrent use of memory pools. Configuring the LogLevel of mod_http2 above "info" will mitigate this vulnerability for unpatched servers.

Metrics

CVSS 3.1
7.5/10

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

EPSS Probability
58.72%

99.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
ApacheHttp Server>= 2.4.20, < 2.4.44
NetappClustered Data OntapAll versions
CanonicalUbuntu Linux16.04
CanonicalUbuntu Linux18.04
CanonicalUbuntu Linux20.04
OpensuseLeap15.1
OpensuseLeap15.2
DebianDebian Linux10.0
FedoraprojectFedora31
FedoraprojectFedora32
OracleCommunications Element Manager>= 8.2.0, <= 8.2.2
OracleCommunications Session Report Manager>= 8.2.0, <= 8.2.2
OracleCommunications Session Route Manager>= 8.2.0, <= 8.2.2
OracleEnterprise Manager Ops Center12.4.0.0
OracleHyperion Infrastructure Technology11.1.2.4
OracleInstantis Enterprisetrack17.1
OracleInstantis Enterprisetrack17.2
OracleInstantis Enterprisetrack17.3
OracleZfs Storage Appliance Kit8.8

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is CVE-2020-11993?
Apache HTTP Server versions 2.4.20 to 2.4.43 When trace/debug was enabled for the HTTP/2 module and on certain traffic edge patterns, logging statements were made on the wrong connection, causing concurrent use of memory pools. Configuring the LogLevel of mod_http2 above "info" will mitigate this vulnerability for unpatched servers.
How severe is CVE-2020-11993?
CVE-2020-11993 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 58.72% probability of exploitation in the next 30 days.
How do I fix CVE-2020-11993?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-11993?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST