Buffer overflow in Cyrus IMAP Server - CVE-2019-11356
Published: June 9, 2019
Vulnerability identifier: #VU18717
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-11356
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Carnegie Mellon University
Affected software:
Cyrus IMAP Server
Cyrus IMAP Server
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation in a crafted HTTP PUT operation for an event with a long iCalendar property name. A remote attacker can send a specially crafted request and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2019-11356
Install update from vendor's website.
Sources
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IGO43JS7IFDNITHXOOHOP6JHRKRDIYY6/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PICSZDC3UGEUZ27VXGGM6OFI67D3KKLZ/
- https://www.cyrusimap.org/imap/download/release-notes/2.5/index.html
- https://www.cyrusimap.org/imap/download/release-notes/2.5/x/2.5.13.html
- https://www.cyrusimap.org/imap/download/release-notes/3.0/index.html
- https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.10.html
- https://www.debian.org/security/2019/dsa-4458