CVE-2019-11500
Critical
Description
In Dovecot before 2.2.36.4 and 2.3.x before 2.3.7.2 (and Pigeonhole before 0.5.7.2), protocol processing can fail for quoted strings. This occurs because '\0' characters are mishandled, and can lead to out-of-bounds writes and remote code execution.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Dovecot
PublishedAug 29, 2019
First seenAug 29, 2019
How to fix
Update
- dovecot dovecot2.2.36.4, 2.3.7.2 or later
- dovecot pigeonhole0.5.7.2 or later
Vendor advisories
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3GYTZLLDNIFWT7D7JSB25ERJNMOR4CQ3/
- security.gentoo.org/glsa/201908-29
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KVHY3MU2OK2EWZJFGNDSAOMD42L7DFPX/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YSJVVVRAE3SITC2ZLGCPMFDN3WVYZBWF/
- access.redhat.com/errata/RHSA-2019:2822
- access.redhat.com/errata/RHSA-2019:2836
- access.redhat.com/errata/RHSA-2019:2885
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| dovecot dovecot | v < 2.2.36.4, 2.3.0 ≤ v < 2.3.7.2 | 2.2.36.4, 2.3.7.2 |
| dovecot pigeonhole | v < 0.5.7.2 | 0.5.7.2 |
| debian debian_linux | 8.0 | — |
| fedoraproject fedora | 30 | — |
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