usersfile.c in liboath in OATH Toolkit before 2.4.1 does not properly handle lines containing an invalid one-time-password (OTP) type and a user name in /etc/users.oath, which causes the wrong line to be updated when invalidating an OTP and allows context-dependent attackers to conduct replay attacks, as demonstrated by a commented out line when using libpam-oath.
{ "availability": "No subscription required", "binaries": [ { "binary_name": "liboath-dev", "binary_version": "2.6.1-1" }, { "binary_name": "liboath-dev-dbgsym", "binary_version": "2.6.1-1" }, { "binary_name": "liboath0", "binary_version": "2.6.1-1" }, { "binary_name": "liboath0-dbgsym", "binary_version": "2.6.1-1" }, { "binary_name": "libpam-oath", "binary_version": "2.6.1-1" }, { "binary_name": "libpam-oath-dbgsym", "binary_version": "2.6.1-1" }, { "binary_name": "oath-dbg", "binary_version": "2.6.1-1" }, { "binary_name": "oathtool", "binary_version": "2.6.1-1" }, { "binary_name": "oathtool-dbgsym", "binary_version": "2.6.1-1" } ] }
{ "availability": "No subscription required", "binaries": [ { "binary_name": "liboath-dev", "binary_version": "2.6.1-1" }, { "binary_name": "liboath-dev-dbgsym", "binary_version": "2.6.1-1" }, { "binary_name": "liboath0", "binary_version": "2.6.1-1" }, { "binary_name": "liboath0-dbgsym", "binary_version": "2.6.1-1" }, { "binary_name": "libpam-oath", "binary_version": "2.6.1-1" }, { "binary_name": "libpam-oath-dbgsym", "binary_version": "2.6.1-1" }, { "binary_name": "oath-dbg", "binary_version": "2.6.1-1" }, { "binary_name": "oathtool", "binary_version": "2.6.1-1" }, { "binary_name": "oathtool-dbgsym", "binary_version": "2.6.1-1" } ] }