Description
Simple Streams (simplestreams) does not properly verify the GPG signatures of disk image files, which allows remote mirror servers to spoof disk images and have unspecified other impact via a 403 (aka Forbidden) response.
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.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | simplestreams | 0.1.0~bzr341-0ubuntu2.2 | USN-2746-1 |
Advisories 1
- USN-2746-1 simplestreams vulnerability Ubuntu Security Notices (USN) · Feb 10, 2026
References
- USN-2746-1 vendor-advisory
- USN-2746-2 vendor-advisory
- https://bugs.launchpad.net/ubuntu/%2Bsource/simplestreams/%2Bbug/1487004