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.

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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

Projects

Sign in to view the affected projects.

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