CVE-2011-4407
ppa.py in Software Properties before 0.81.13.3 does not validate the server certificate when...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2011-4407- CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2011-4407- Updated
- 2026-11-02
EUVDEUVD-2011-4336 No score
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.
- Record
EUVD-2011-4336- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-m49h-wwcv-rf5m No score
ppa.py in Software Properties before 0.81.13.3 does not validate the server certificate when...
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.
- Record
GHSA-m49h-wwcv-rf5m- Weakness
- CWE-20
- Updated
- 2026-11-02
OSV No score
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.
- Record
CVE-2011-4407- Updated
- 2026-11-02
OSVDEBIAN-CVE-2011-4407 No score
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.
- Record
DEBIAN-CVE-2011-4407- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
software-propertiesDebian:12 |
before 0.76.7debian2+nmu2 | 0.76.7debian2+nmu2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2011-4407 is a medium vulnerability (CVSS 4.3) in Canonical Software-properties, published May 14, 2014. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.63%, the 50th percentile. Fixed in software-properties 0.76.7debian2+nmu2.