VulnerabilityModified
CVE-2019-3814
A remote attacker in possession of a valid certificate with an empty username field could possibly use this issue to impersonate other users.
MEDIUM 6.8EPSS 2.42%
Does this matter?
Lower severity and a low EPSS score (2.42%). Track it; it rarely justifies an emergency change on its own.
Description
It was discovered that Dovecot before versions 2.2.36.1 and 2.3.4.1 incorrectly handled client certificates. A remote attacker in possession of a valid certificate with an empty username field could possibly use this issue to impersonate other users.
- CVSS 3.0
- 6.8 MEDIUMCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 2.42% probability · 83th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-295
- Affected
- dovecot/dovecot · canonical/ubuntu linux · opensuse/leap
- Source
- secalert@redhat.com
References
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00067.htmlMailing List, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3467
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3814Issue Tracking, Release Notes, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4XLI55NGRDTGMVOPYFCPPFNPA5VKYSSY/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/
- https://security.gentoo.org/glsa/201904-19
- https://www.dovecot.org/list/dovecot/2019-February/114575.htmlExploit, Mailing List, Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00067.htmlMailing List, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3467
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3814Issue Tracking, Release Notes, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4XLI55NGRDTGMVOPYFCPPFNPA5VKYSSY/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/
- https://security.gentoo.org/glsa/201904-19
- https://www.dovecot.org/list/dovecot/2019-February/114575.htmlExploit, Mailing List, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.