Resource exhaustion in Open-xchange Open-xchange_appsuite_backend
CVE-2023-26433
When adding an external mail account, processing of IMAP "capabilities" responses are not limited to plausible sizes. Attacker with access to a rogue IMAP service could trigger requests that lead to excessive resource usage and eventually…
Vulnerability class: DoS (Denial of Service)
EPSS: 0.011 (63.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Open-xchange Open-xchange_appsuite_backend — versions 7.10.6
- Ox Software Gmbh App Suite — versions 0
Weakness classification (CWE)
References
- security@open-xchange.com (release-notes, Release Notes)
- security@open-xchange.com (vendor-advisory)
- security@open-xchange.com (Mailing List, Third Party Advisory)
- security@open-xchange.com (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-26433?
- CVE-2023-26433 is a medium-severity vulnerability in Open-xchange Open-xchange_appsuite_backend, classified under Uncontrolled Resource Consumption. CVSS score: 4.3/10. Published 2023-06-20.
- How severe is CVE-2023-26433?
- Medium severity. CVSS v3 base score is 4.3 out of 10.