CVE-2020-13934

HIGHScheduled

Published:Jul 14, 2020(5 years ago)

Modified:Nov 21, 2024

Remote ExploitNo Auth RequiredNo InteractionLow Complexity

Vulnerability Description

An h2c direct connection to Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M5 to 9.0.36 and 8.5.1 to 8.5.56 did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests were made, an OutOfMemoryException could occur leading to a denial of service.

Attack Characteristics

Network AccessLow ComplexityNo Auth NeededNo User Interaction

🤖

AI analysis not yet available

Plain-English explanation, risk summary, and remediation steps will appear here once AI analysis is complete.

No Fix Known

No patch has been released yet. Apply workarounds or mitigations where available.

Affected Software

Vendor	Product	Versions	Fixed In
apache	tomcat	8.5.1 - 8.5.56	-
apache	tomcat	9.0.1 - 9.0.36	-
apache	tomcat	-

Timeline

Published
CVE disclosed publicly
Jul 14, 20205 years ago
Last Modified
Most recent update
Nov 21, 20241 year ago
Indexed to CVEInsight
Added to this platform
Mar 29, 20261 month ago

References

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00084....Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00088....Mailing List
https://lists.apache.org/thread.html/r61f411cf82488d6ec213063fc15feeeb...Mailing List

CVSS Score

v3.1

7.5/ 10.0

HIGH

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

At a Glance

Affected Products

References

apache / tomcat

https://lists.apache.org/thread.html/ra072b1f786e7d139e86f1d1145572e0f...

https://lists.debian.org/debian-lts-announce/2020/07/msg00017.htmlMailing List

https://security.netapp.com/advisory/ntap-20200724-0003/Third Party Advisory

https://usn.ubuntu.com/4596-1/Third Party Advisory

https://www.debian.org/security/2020/dsa-4727Third Party Advisory

https://www.oracle.com//security-alerts/cpujul2021.htmlPatch

https://www.oracle.com/security-alerts/cpuApr2021.htmlPatch

https://www.oracle.com/security-alerts/cpujan2021.htmlPatch

https://www.oracle.com/security-alerts/cpujan2022.htmlPatch

https://www.oracle.com/security-alerts/cpuoct2020.htmlPatch

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00084....Mailing List

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00088....Mailing List

https://lists.apache.org/thread.html/r61f411cf82488d6ec213063fc15feeeb...Mailing List

https://lists.apache.org/thread.html/ra072b1f786e7d139e86f1d1145572e0f...

https://lists.debian.org/debian-lts-announce/2020/07/msg00017.htmlMailing List

https://security.netapp.com/advisory/ntap-20200724-0003/Third Party Advisory

https://usn.ubuntu.com/4596-1/Third Party Advisory

https://www.debian.org/security/2020/dsa-4727Third Party Advisory

https://www.oracle.com//security-alerts/cpujul2021.htmlPatch

https://www.oracle.com/security-alerts/cpuApr2021.htmlPatch

https://www.oracle.com/security-alerts/cpujan2021.htmlPatch

https://www.oracle.com/security-alerts/cpujan2022.htmlPatch

https://www.oracle.com/security-alerts/cpuoct2020.htmlPatch

CVSS v3 Vector

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

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

Impact

ScopeUnchanged

ConfidentialityNone

IntegrityNone

AvailabilityHigh

Impact Analysis

ConfidentialityNone

NoneLowHigh

IntegrityNone

NoneLowHigh

AvailabilityHigh

NoneLowHigh

CVE-2020-13934

✦ Vulnerability Description

Attack Characteristics

Affected Software

Timeline

References

CVSS Score

At a Glance

Official Sources

CVSS v3 Vector

Impact Analysis

Vulnerability Description