The passprompt plugin in pppd in ppp before 2.5.2 mishandles privileges.
{ "binaries": [ { "binary_name": "ppp", "binary_version": "2.4.9-1+1ubuntu3" }, { "binary_name": "ppp-dev", "binary_version": "2.4.9-1+1ubuntu3" } ] }
{ "binaries": [ { "binary_name": "ppp", "binary_version": "2.4.9-1+1.1ubuntu4" }, { "binary_name": "ppp-dev", "binary_version": "2.4.9-1+1.1ubuntu4" } ] }
{ "binaries": [ { "binary_name": "ppp", "binary_version": "2.4.5-5.1ubuntu2.3+esm2" }, { "binary_name": "ppp-dev", "binary_version": "2.4.5-5.1ubuntu2.3+esm2" } ] }
{ "binaries": [ { "binary_name": "ppp", "binary_version": "2.4.7-1+2ubuntu1.16.04.3" }, { "binary_name": "ppp-dev", "binary_version": "2.4.7-1+2ubuntu1.16.04.3" } ] }
{ "binaries": [ { "binary_name": "ppp", "binary_version": "2.4.7-2+2ubuntu1.3" }, { "binary_name": "ppp-dev", "binary_version": "2.4.7-2+2ubuntu1.3" } ] }
{ "binaries": [ { "binary_name": "ppp", "binary_version": "2.4.7-2+4.1ubuntu5.1" }, { "binary_name": "ppp-dev", "binary_version": "2.4.7-2+4.1ubuntu5.1" } ] }