CVE-2019-11356

CRITICAL EPSS 93.8%

Published Jun 3, 20197y ago · Modified Jun 17, 20262w ago

9.8 CVSS 3.1

Critical

Published Jun 3, 2019 7y ago

Last Modified Jun 17, 2026 2w ago

Description

The CalDAV feature in httpd in Cyrus IMAP 2.5.x through 2.5.12 and 3.0.x through 3.0.9 allows remote attackers to execute arbitrary code via a crafted HTTP PUT operation for an event with a long iCalendar property name.

CVSS Details

Base Score

9.8

Exploitability

3.9

Impact

5.9

Vector string

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality High

Integrity High

Availability High

Threat Intelligence

EPSS Exploit Probability

93.8% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 14

Vendor	Product	Version	Range
cyrus	imap	*	≥2.5.0 – ≤2.5.12
cyrus	imap	*	≥3.0.0 – ≤3.0.9
fedoraproject	fedora	29	any
fedoraproject	fedora	30	any
debian	debian_linux	9.0	any
canonical	ubuntu_linux	18.04	any
redhat	enterprise_linux	8.0	any
redhat	enterprise_linux_eus	8.1	any
redhat	enterprise_linux_eus	8.2	any
redhat	enterprise_linux_eus	8.4	any
redhat	enterprise_linux_server_aus	8.2	any
redhat	enterprise_linux_server_aus	8.4	any
redhat	enterprise_linux_server_tus	8.2	any
redhat	enterprise_linux_server_tus	8.4	any

References 10

access.redhat.com https://access.redhat.com/errata/RHSA-2019:1771

Third Party Advisory
lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGO43JS7IFDNITHXOOHOP6JHRKRDIYY6/
lists.fedoraproject.org https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PICSZDC3UGEUZ27VXGGM6OFI67D3KKLZ/
seclists.org https://seclists.org/bugtraq/2019/Jun/9

Mailing ListThird Party Advisory
usn.ubuntu.com https://usn.ubuntu.com/4566-1/

Third Party Advisory
cyrusimap.org https://www.cyrusimap.org/imap/download/release-notes/2.5/index.html

Release NotesVendor Advisory
cyrusimap.org https://www.cyrusimap.org/imap/download/release-notes/2.5/x/2.5.13.html

Release NotesVendor Advisory
cyrusimap.org https://www.cyrusimap.org/imap/download/release-notes/3.0/index.html

Release NotesVendor Advisory
cyrusimap.org https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.10.html

Release NotesVendor Advisory
debian.org https://www.debian.org/security/2019/dsa-4458

Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.