Lucene search

K
atlassianSecurity-metrics-botCONFSERVER-93163
HistoryNov 03, 2023 - 12:45 a.m.

DoS (Denial of Service) io.netty:netty-codec-http2 in Confluence Data Center and Server

2023-11-0300:45:12
security-metrics-bot
jira.atlassian.com
26
denial of service
http/2
confluence data center
server
third-party dependency
cvss score 7.5
unauthenticated attacker
atlassian upgrade recommendation

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.2

Confidence

High

EPSS

0.708

Percentile

98.1%

This High severity Third-Party Dependency vulnerability was introduced in versions 7.19.0, 8.3.0, 8.4.0, 8.5.0, and 8.6.0 of Confluence Data Center and Server.

This Third-Party Dependency vulnerability, with a CVSS Score of 7.5 and a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H allows an unauthenticated attacker to expose assets in your environment susceptible to exploitation which has no impact to confidentiality, no impact to integrity, high impact to availability, and requires no user interaction. 

Atlassian recommends that Confluence Data Center and Server customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions:
	
	* Confluence Data Center and Server 7.19: Upgrade to a release greater than or equal to 7.19.16
	
	* Confluence Data Center and Server 8.5: Upgrade to a release greater than or equal to 8.5.3
	
	* Confluence Data Center and Server 8.6: Upgrade to a release greater than or equal to 8.6.1
	
	

See the release notes (https://confluence.atlassian.com/doc/confluence-release-notes-327.html). You can download the latest version of Confluence Data Center and Server from the download center (https://www.atlassian.com/software/confluence/download-archives).

The National Vulnerability Database provides the following description for this vulnerability: The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.

Affected configurations

Vulners
Node
atlassianconfluence_data_centerRange7.19.0
OR
atlassianconfluence_data_centerRange7.19.1
OR
atlassianconfluence_data_centerRange7.19.2
OR
atlassianconfluence_data_centerRange7.19.3
OR
atlassianconfluence_data_centerRange7.19.4
OR
atlassianconfluence_data_centerRange7.19.5
OR
atlassianconfluence_data_centerRange8.3.0
OR
atlassianconfluence_data_centerRange8.4.0
OR
atlassianconfluence_data_centerRange7.19.6
OR
atlassianconfluence_data_centerRange7.19.7
OR
atlassianconfluence_data_centerRange7.19.8
OR
atlassianconfluence_data_centerRange7.19.9
OR
atlassianconfluence_data_centerRange7.19.10
OR
atlassianconfluence_data_centerRange7.19.11
OR
atlassianconfluence_data_centerRange8.3.1
OR
atlassianconfluence_data_centerRange8.3.2
OR
atlassianconfluence_data_centerRange8.6.0
OR
atlassianconfluence_data_centerRange7.19.12
OR
atlassianconfluence_data_centerRange8.4.1
OR
atlassianconfluence_data_centerRange8.4.2
OR
atlassianconfluence_data_centerRange8.5.1
OR
atlassianconfluence_data_centerRange7.19.14
OR
atlassianconfluence_data_centerRange8.5.2
OR
atlassianconfluence_data_centerRange7.19.15
OR
atlassianconfluence_data_centerRange8.3.4
OR
atlassianconfluence_data_centerRange8.4.4
OR
atlassianconfluence_data_centerRange<8.6.1
OR
atlassianconfluence_data_centerRange<7.19.16
OR
atlassianconfluence_data_centerRange<8.5.3

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.2

Confidence

High

EPSS

0.708

Percentile

98.1%