{"id":"CVE-2011-4407","aliases":["DEBIAN-CVE-2011-4407","EUVD-2011-4336","GHSA-m49h-wwcv-rf5m"],"status":"published","title":"ppa.py in Software Properties before 0.81.13.3 does not validate the server certificate when...","description":"ppa.py in Software Properties before 0.81.13.3 does not validate the server certificate when downloading PPA GPG key fingerprints, which allows man-in-the-middle (MITM) attackers to spoof GPG keys for a package repository.","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.00632,"percentile":0.50553,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2014-05-14T00:00:00Z","modified":"2026-10-23T17:47:28Z","fixes":[{"ecosystem":"Debian:12","package":"software-properties","fixed_in":["0.76.7debian2+nmu2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"software-properties","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.76.7debian2+nmu2"}]}]}],"products":[{"vendor":"canonical","product":"software-properties"},{"vendor":"canonical","product":"ubuntu_linux"}],"references":[{"url":"http://www.ubuntu.com/usn/USN-1352-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","advisory"]},{"url":"https://bugs.launchpad.net/ubuntu/%2Bsource/software-properties/%2Bbug/915210","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4407"},{"url":"https://github.com/advisories/GHSA-m49h-wwcv-rf5m"},{"url":"https://security-tracker.debian.org/tracker/CVE-2011-4407","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2011-4407","description":"ppa.py in Software Properties before 0.81.13.3 does not validate the server certificate when downloading PPA GPG key fingerprints, which allows man-in-the-middle (MITM) attackers to spoof GPG keys for a package repository.","status":"published","published":"2014-05-14T00:00:00Z","modified":"2024-08-07T00:09:18.408Z","updated_at":"2026-11-02T14:35:37.989579Z"}],"euvd":[{"id":"EUVD-2011-4336","description":"ppa.py in Software Properties before 0.81.13.3 does not validate the server certificate when downloading PPA GPG key fingerprints, which allows man-in-the-middle (MITM) attackers to spoof GPG keys for a package repository.","status":"published","published":"2014-05-14T00:00:00Z","modified":"2024-08-07T00:09:18Z","updated_at":"2026-11-03T01:39:48.961231Z"}],"ghsa":[{"id":"GHSA-m49h-wwcv-rf5m","title":"ppa.py in Software Properties before 0.81.13.3 does not validate the server certificate when...","description":"ppa.py in Software Properties before 0.81.13.3 does not validate the server certificate when downloading PPA GPG key fingerprints, which allows man-in-the-middle (MITM) attackers to spoof GPG keys for a package repository.","status":"published","published":"2022-05-17T04:44:00Z","modified":"2023-01-28T05:02:22Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:43:45.797636Z"}],"nvd":[{"id":"CVE-2011-4407","description":"ppa.py in Software Properties before 0.81.13.3 does not validate the server certificate when downloading PPA GPG key fingerprints, which allows man-in-the-middle (MITM) attackers to spoof GPG keys for a package repository.","status":"published","published":"2014-05-14T00:55:04.9Z","modified":"2026-06-16T23:34:52.79Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:02:12.639283Z"}],"osv":[{"id":"CVE-2011-4407","description":"ppa.py in Software Properties before 0.81.13.3 does not validate the server certificate when downloading PPA GPG key fingerprints, which allows man-in-the-middle (MITM) attackers to spoof GPG keys for a package repository.","status":"published","published":"2014-05-14T00:55:04Z","modified":"2026-04-10T03:42:05.619747Z","updated_at":"2026-11-02T15:43:58.279353Z"},{"id":"DEBIAN-CVE-2011-4407","description":"ppa.py in Software Properties before 0.81.13.3 does not validate the server certificate when downloading PPA GPG key fingerprints, which allows man-in-the-middle (MITM) attackers to spoof GPG keys for a package repository.","status":"published","published":"2014-05-14T00:55:04.9Z","modified":"2026-10-23T17:47:28.855985046Z","updated_at":"2026-11-02T15:45:24.612044Z"}]}}