CVE-2019-11356
9.8
CRITICAL · CVSS 3.1 · EPSS 7.6% (pctl 94)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 7.62% — more likely to be exploited than 94% of all CVEs |
| Weakness | CWE-787 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2019-06-03 |
| Last modified | 2026-06-17 |
Affected (8)
| Vendor | Product |
|---|---|
| canonical | ubuntu linux |
| cyrus | imap |
| debian | debian linux |
| fedoraproject | fedora |
| redhat | enterprise linux |
| redhat | enterprise linux eus |
| redhat | enterprise linux server aus |
| redhat | enterprise linux server tus |
References
- https://access.redhat.com/errata/RHSA-2019:1771
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGO43JS7IFDNITHXOOHOP6JHRKRDIYY6/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PICSZDC3UGEUZ27VXGGM6OFI67D3KKLZ/
- https://seclists.org/bugtraq/2019/Jun/9
- https://usn.ubuntu.com/4566-1/
- 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
- https://access.redhat.com/errata/RHSA-2019:1771
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IGO43JS7IFDNITHXOOHOP6JHRKRDIYY6/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PICSZDC3UGEUZ27VXGGM6OFI67D3KKLZ/
- https://seclists.org/bugtraq/2019/Jun/9
- https://usn.ubuntu.com/4566-1/
- 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
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