Description
The filename sanitization component in ownCloud Server before 6.0.8, 7.0.x before 7.0.6, and 8.0.x before 8.0.4 does not properly handle $_GET parameters cast by PHP to an array, which allows remote attackers to cause a denial of service (infinite loop and log file consumption) via crafted endpoint file names.
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 8 | owncloud | 7.0.4+dfsg-4~deb8u3 | DSA-3373-1 |
Advisories 1
- DSA-3373-1 owncloud - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-3373 vendor-advisory
- 76161 vdb-entry
- https://owncloud.org/security/advisory/?id=oc-sa-2015-007