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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 13 | sogo | 3.2.4-0.2 | — |
| Debian 12 | sogo | 3.2.4-0.2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | sogo | No fix yet | — |
References
- https://github.com/inverse-inc/sogo/commit/875a4aca3218340fd4d3141950c82c2ff45b343d
- https://github.com/inverse-inc/sogo/commit/717f45f640a2866b76a8984139391fae64339225
- https://sogo.nu/bugs/view.php?id=3696
- [oss-security] 20160709 Re: CVE request: several SOGo issues (DOS, XSS, information leakage) mailing-list