Description
popauth.c in qpopper 4.0.5 and earlier does not properly set the umask, which may cause qpopper to create files with group or world-writable permissions.
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 3.0 | qpopper | 4.0.4-2.woody.5 | DSA-728-1 |
Advisories 1
- DSA-728-1 qpopper - missing privilege release Debian Security (DSA / DLA) · Mar 9, 2026
References
- http://bugs.gentoo.org/attachment.cgi?id=58329&action=view
- 15505 third-party-advisory
- 15478 third-party-advisory
- http://bugs.gentoo.org/show_bug.cgi?id=90622
- DSA-728 vendor-advisory
- 15475 third-party-advisory
- GLSA-200505-17 vendor-advisory