Confluence Data Center and Server update for Jetty

1) Integer overflow

EUVDB-ID: #VU81726

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-36478

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to integer overflow in MetaDataBuilder.checkSize when handling HTTP/2 HPACK header values. A remote attacker can send specially crafted request to the server, trigger an integer overflow and crash the server.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Confluence Data Center: 7.17.0 - 8.5.7

Atlassian Confluence Server: 7.17.0 - 8.5.6

CPE2.3

• cpe:2.3:a:atlassian:confluence_data_center:8.5.7:*:*:*:*:*:*:
• cpe:2.3:a:atlassian:confluence_data_center:7.19.19:*:*:*:*:*:*:
• cpe:2.3:a:atlassian:confluence_data_center:8.4.5:*:*:*:*:*:*:
• cpe:2.3:a:atlassian:confluence_data_center:8.1.4:*:*:*:*:*:*:
• cpe:2.3:a:atlassian:confluence_data_center:8.3.4:*:*:*:*:*:*:
• cpe:2.3:a:atlassian:confluence_data_center:8.2.3:*:*:*:*:*:*:
• cpe:2.3:a:atlassian:confluence_data_center:8.0.4:*:*:*:*:*:*:
• cpe:2.3:a:atlassian:confluence_data_center:7.20.3:*:*:*:*:*:*:
• cpe:2.3:a:atlassian:confluence_data_center:7.18.3:*:*:*:*:*:*:
• cpe:2.3:a:atlassian:confluence_data_center:7.17.5:*:*:*:*:*:*:
• cpe:2.3:a:atlassian:atlassian_confluence_server:8.5.6:*:*:*:*:*:*:
• cpe:2.3:a:atlassian:atlassian_confluence_server:7.19.19:*:*:*:*:*:*:
• cpe:2.3:a:atlassian:atlassian_confluence_server:8.4.5:*:*:*:*:*:*:
• cpe:2.3:a:atlassian:atlassian_confluence_server:8.1.4:*:*:*:*:*:*:
• cpe:2.3:a:atlassian:atlassian_confluence_server:8.3.4:*:*:*:*:*:*:
• cpe:2.3:a:atlassian:atlassian_confluence_server:8.2.3:*:*:*:*:*:*:
• cpe:2.3:a:atlassian:atlassian_confluence_server:8.0.4:*:*:*:*:*:*:
• cpe:2.3:a:atlassian:atlassian_confluence_server:7.20.3:*:*:*:*:*:*:
• cpe:2.3:a:atlassian:atlassian_confluence_server:7.18.3:*:*:*:*:*:*:
• cpe:2.3:a:atlassian:atlassian_confluence_server:7.17.5:*:*:*:*:*:*:

External links

http://jira.atlassian.com/browse/CONFSERVER-94843

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.