What’s Vulnerable › Vulnerabilities
CVE-2023-29046
- Severity: medium (CVSS 4.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2023-11-02 · updated 2026-06-17
- Weakness: CWE-400
Description
Connections to external data sources, like e-mail autoconfiguration, were not terminated in case they hit a timeout, instead those connections were logged. Some connections use user-controlled endpoints, which could be malicious and attempt to keep the connection open for an extended period of time. As a result users were able to trigger large amount of egress network connections, possibly exhausting network pool resources and lock up legitimate requests. A new mechanism has been introduced to cancel external connections that might access user-controlled endpoints. No publicly available exploits are known.
Affected products
- Open-Xchange Appsuite: before 7.10.6; 7.10.6, 7.10.6-patch_release_6069, 7.10.6-patch_release_6073, 7.10.6-patch_release_6080, 7.10.6-patch_release_6085, 7.10.6-patch_release_6093 (+36) — fixed in 7.10.6
How to fix
Upgrade to a fixed version: Open-Xchange Appsuite 7.10.6. Check the vendor advisory for mitigations.
References
- https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0004.json
- https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6243_7.10.6_2023-08-01.pdf
- https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0004.json
- https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6243_7.10.6_2023-08-01.pdf
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