description: Add-on updates failed to verify that the add-on ID inside the signed package matched the ID of the add-on being updated. An attacker who could perform a man-in-the-middle attack on the user's connection to the update server and defeat the certificate pinning protection could provide a malicious signed add-on instead of a valid update. This vulnerability affects Firefox ESR < 45.5 and Firefox < 50.
problem types: Add-ons update must verify IDs match between current and new versions
affected:
{
product: Firefox ESR
vendor: Mozilla
versions:
lessThan: 45.5, status: affected, version: unspecified, versionType: custom
}
{
product: Firefox
vendor: Mozilla
versions:
lessThan: 50, status: affected, version: unspecified, versionType: custom
}
