Description
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 service unavailability. We now limit accepted IMAP server response to reasonable length/size. No publicly available exploits are known.

Published: 2023-06-20
Score: 4.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2023-30253 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 service unavailability. We now limit accepted IMAP server response to reasonable length/size. No publicly available exploits are known.
History

No history.

Subscriptions

Open-xchange Open-xchange Appsuite Backend
cve-icon MITRE

Status: PUBLISHED

Assigner: OX

Published:

Updated: 2024-08-02T11:46:24.671Z

Reserved: 2023-02-22T20:42:56.089Z

Link: CVE-2023-26433

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-06-20T08:15:09.427

Modified: 2024-11-21T07:51:26.090

Link: CVE-2023-26433

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses