CVE-2019-19783
cyrus-imapd - security update
6.5
MEDIUM
CVSS 3.1
EPSS 1.3%
Description
An issue was discovered in Cyrus IMAP before 2.5.15, 3.0.x before 3.0.13, and 3.1.x through 3.1.8. If sieve script uploading is allowed (3.x) or certain non-default sieve options are enabled (2.x), a user with a mail account on the service can use a sieve script containing a fileinto directive to create any mailbox with administrator privileges, because of folder mishandling in autosieve_createfolder() in imap/lmtp_sieve.c.
How to fix CVE-2019-19783
To remediate CVE-2019-19783, upgrade the affected package to a fixed version below.
- —upgrade to 3.0.13-1 or later
- —upgrade to 2.5.10-3+deb9u2 or later
Is CVE-2019-19783 being exploited?
Low — EPSS is 1.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 3.0.13-1
- from 0, < 2.5.10-3+deb9u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |