CVE-2015-4456

low
Published 2015-10-26 · Modified 2026-05-06
CVSS v3
CVSS v2
2.6
VIR risk
2.6

Description

ownCloud Desktop Client before 1.8.2 does not call QNetworkReply::ignoreSslErrors with the list of errors to be ignored, which allows man-in-the-middle attackers to bypass the user's certificate distrust decision and obtain sensitive information by leveraging a self-signed certificate and a connection to a server using its own self-signed certificate.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2015-4456

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://owncloud.org/security/advisory/?id=oc-sa-2015-009

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed1.8.4+dfsg-1
debian debianforkyfixed1.8.4+dfsg-1
debian debiansidfixed1.8.4+dfsg-1
debian debiantrixiefixed1.8.4+dfsg-1

Application impact

VendorProductVersionsFixed
owncloudowncloud_desktop_client{"endIncluding":"1.8.1"}

References

Verify integrity in audit chain (admin only). AS-IS.