CVE-2023-26432: When adding an external mail account, processing of SMTP "capabilities" responses are not limited to plausible sizes. Attacker with access to a...

4.3 CVSS

Description

When adding an external mail account, processing of SMTP "capabilities" responses are not limited to plausible sizes. Attacker with access to a rogue SMTP service could trigger requests that lead to excessive resource usage and eventually service unavailability. We now limit accepted SMTP server response to reasonable length/size. No publicly available exploits are known.

Classification

CVE ID: CVE-2023-26432

CVSS Base Severity: MEDIUM

CVSS Base Score: 4.3

Affected Products

Vendor: OX Software GmbH

Product: OX App Suite

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.17% (probability of being exploited)

EPSS Percentile: 54.97% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6219_7.10.6_2023-03-20.pdf
https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0002.json
http://seclists.org/fulldisclosure/2023/Jun/8
http://packetstormsecurity.com/files/173083/OX-App-Suite-SSRF-Resource-Consumption-Command-Injection.html

Timeline