CVE-2016-6190

Severity: medium (CVSS 4.3 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-02-17 · updated 2026-06-17
Weakness: CWE-200

Description

SOGo before 2.3.12 and 3.x before 3.1.1 does not restrict access to the UID and DTSTAMP attributes, which allows remote authenticated users to obtain sensitive information about appointments with the "View the Date & Time" restriction, as demonstrated by correlating UIDs and DTSTAMPs between all users.

Affected products

Inverse-Inc Sogo: through 2.3.11; 3.0.0, 3.0.0-beta_1, 3.0.0-beta_2, 3.0.0-beta_3, 3.0.0-beta_4, 3.0.0-beta_5 (+3)

References

http://www.openwall.com/lists/oss-security/2016/07/09/3
https://github.com/inverse-inc/sogo/commit/717f45f640a2866b76a8984139391fae64339225
https://github.com/inverse-inc/sogo/commit/875a4aca3218340fd4d3141950c82c2ff45b343d
https://sogo.nu/bugs/view.php?id=3696
http://www.openwall.com/lists/oss-security/2016/07/09/3
https://github.com/inverse-inc/sogo/commit/717f45f640a2866b76a8984139391fae64339225
https://github.com/inverse-inc/sogo/commit/875a4aca3218340fd4d3141950c82c2ff45b343d
https://sogo.nu/bugs/view.php?id=3696

Get alerted when CVE-2016-6190 or the next vulnerability affects your stack