CVE-2019-11500

dovecot: improper NULL byte handling in IMAP and ManageSieve protocol parsers leads to out of bounds writes

Published Aug 29, 2019 CVSS 3.0 · 9.8 Critical EPSS 62.3% KEV · Not listed
Description
In Dovecot before 2.2.36.4 and 2.3.x before 2.3.7.2 (and Pigeonhole before 0.5.7.2), protocol processing can fail for quoted strings. This occurs because '\0' characters are mishandled, and can lead to out-of-bounds writes and remote code execution.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-1901-1 dovecot security update
Debian DSA Debian DSA DSA-4510-1 dovecot security update
Ubuntu USN Ubuntu USN USN-4110-1 Dovecot vulnerability
Ubuntu USN Ubuntu USN USN-4110-2 Dovecot vulnerability
Ubuntu USN Ubuntu USN USN-4110-3 Dovecot regression
Ubuntu USN Ubuntu USN USN-4110-4 Dovecot regression
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 4, 2024, 10:55 PM
Reserved
Apr 24, 2019, 12:00 AM
Status
Modified
Published
Aug 29, 2019, 2:15 PM
Modified
Jun 17, 2026, 2:13 AM
Severity
Important
Public date
Aug 28, 2019, 12:00 PM