{"id":"CVE-2015-1337","aliases":["EUVD-2015-1477","GHSA-r4f6-cvp5-f9ch","UBUNTU-CVE-2015-1337","USN-2746-1"],"status":"published","title":"Simple Streams (simplestreams) does not properly verify the GPG signatures of disk image files,...","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.","severity":{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01709,"percentile":0.775,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2015-09-24T00:00:00Z","modified":"2026-06-17T00:22:13Z","fixes":[{"ecosystem":"Ubuntu:14.04:LTS","package":"simplestreams","fixed_in":["0.1.0~bzr341-0ubuntu2.2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Ubuntu:14.04:LTS","package":"simplestreams","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.1.0~bzr341-0ubuntu2.2"}]}],"versions":["0.1.0~bzr318-0ubuntu1","0.1.0~bzr323-0ubuntu1","0.1.0~bzr323-0ubuntu2","0.1.0~bzr331-0ubuntu1","0.1.0~bzr341-0ubuntu1","0.1.0~bzr341-0ubuntu2","0.1.0~bzr341-0ubuntu2.1"]},{"source":"osv","ecosystem":"Ubuntu:14.04:LTS","package":"simplestreams","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.1.0~bzr341-0ubuntu2.2"}]}],"versions":["0.1.0~bzr318-0ubuntu1","0.1.0~bzr323-0ubuntu1","0.1.0~bzr323-0ubuntu2","0.1.0~bzr331-0ubuntu1","0.1.0~bzr341-0ubuntu1","0.1.0~bzr341-0ubuntu2","0.1.0~bzr341-0ubuntu2.1"]}],"products":[{"vendor":"canonical","product":"ubuntu_linux"},{"vendor":"simpestreams_project","product":"simplestreams"}],"references":[{"url":"http://www.ubuntu.com/usn/USN-2746-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"]},{"url":"http://www.ubuntu.com/usn/USN-2746-2","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"]},{"url":"https://bugs.launchpad.net/ubuntu/%2Bsource/simplestreams/%2Bbug/1487004","tags":["x_refsource_CONFIRM","x_transferred","Exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-1337"},{"url":"https://github.com/advisories/GHSA-r4f6-cvp5-f9ch"},{"url":"https://ubuntu.com/security/CVE-2015-1337","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-2746-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2015-1337","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2015-1337","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.","status":"published","published":"2015-10-09T14:00:00Z","modified":"2024-08-06T04:40:18.238Z","updated_at":"2026-11-02T14:35:44.046042Z"}],"euvd":[{"id":"EUVD-2015-1477","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.","status":"published","published":"2015-10-09T14:00:00Z","modified":"2024-08-06T04:40:18Z","updated_at":"2026-11-03T02:22:16.145787Z"}],"ghsa":[{"id":"GHSA-r4f6-cvp5-f9ch","title":"Simple Streams (simplestreams) does not properly verify the GPG signatures of disk image files,...","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.","status":"published","published":"2022-05-17T04:04:50Z","modified":"2023-01-28T05:01:04Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:43:28.398824Z"}],"nvd":[{"id":"CVE-2015-1337","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.","status":"published","published":"2015-10-09T14:59:00.107Z","modified":"2026-06-17T00:22:13.257Z","cvss":[{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:03:10.919251Z"}],"osv":[{"id":"UBUNTU-CVE-2015-1337","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.","status":"published","published":"2015-09-24T00:00:00Z","modified":"2026-02-04T03:51:42.803082Z","updated_at":"2026-11-02T15:54:09.721803Z"},{"id":"USN-2746-1","title":"simplestreams vulnerability","description":"It was discovered that Simple Streams did not properly perform gpg\nverification in some situations. A remote attacker could use this to\nperform a machine-in-the-middle attack and inject malicious content into\nthe stream.\n","status":"published","published":"2015-09-24T23:37:31Z","modified":"2026-02-10T04:40:55Z","updated_at":"2026-11-02T16:58:09.227524Z"}]}}