CVE-2019-19783 Privilege escalation in n/a

What is CVE-2019-19783?

CVE-2019-19783 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 16 Dec 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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.

Weakness: CWE-269

Which versions are affected by CVE-2019-19783?

It affects 4 products.

Products include Canonical Ubuntu Linux, Cyrus Imap, Debian Debian Linux, Fedoraproject Fedora.

How do I fix CVE-2019-19783?

Upgrade to a fixed version.

Is CVE-2019-19783 being exploited?

There is no known exploitation of CVE-2019-19783 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2019-19783, DSA-4590-1, GHSA-rv2p-w5h4-rfg3, MGASA-2020-0010, UBUNTU-CVE-2019-19783.