Insecure Certificate Validation in PPA.py Allows MITM Attackers to Spoof GPG Keys

CVE-2011-4407 · MEDIUM Severity

AV:N/AC:M/AU:N/C:N/I:P/A:N

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.

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