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tomcatApache TomcatTOMCAT:F0049A2F4586A81E86FFD36E3616FCA3
HistorySep 15, 2020 - 12:00 a.m.

Fixed in Apache Tomcat 8.5.58

2020-09-1500:00:00
Apache Tomcat
tomcat.apache.org
29

4.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:S/C:P/I:N/A:N

0.001 Low

EPSS

Percentile

40.6%

Moderate: HTTP/2 request mix-up CVE-2020-13943

If an HTTP/2 client exceeded the agreed maximum number of concurrent streams for a connection (in violation of the HTTP/2 protocol), it was possible that a subsequent request made on that connection could contain HTTP headers - including HTTP/2 pseudo headers - from a previous request rather than the intended headers. This could lead to users seeing responses for unexpected resources.

This was fixed with commit 9d7def06.

This issue was identified by the Apache Tomcat Security team on 23 July 2020. The issue was made public on 12 October 2020.

Affects: 8.5.0 to 8.5.57

CPENameOperatorVersion
apache tomcatge8.5.0
apache tomcatle8.5.57

4.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:S/C:P/I:N/A:N

0.001 Low

EPSS

Percentile

40.6%