Mandriva Linux Security Advisory MDKSA-2006-159 - Previous sudo updates were made available to sanitize certain environment variables from affecting a sudo call, such as PYTHONINSPECT, PERL5OPT, etc. While those updates were effective in addressing those specific environment variables, other variables that were not blacklisted were being made available.
f86071435472415301e61cdb8b22e129f5252ec85ef47195a520ed43c6fc516aUbuntu Security Notice USN-235-2 - USN-235-1 fixed a vulnerability in sudo's handling of environment variables. Tavis Ormandy noticed that sudo did not filter out the PYTHONINSPECT environment variable, so that users with the limited privilege of calling a python script with sudo could still escalate their privileges.
9364621ca1386d4eb6039a9c6fc2ed92b24f6445ebcca81ce0c878381741b487Ubuntu Security Notice USN-235-1 - Charles Morris discovered a privilege escalation vulnerability in sudo. On executing Perl scripts with sudo, various environment variables that affect Perl's library search path were not cleaned properly. If sudo is set up to grant limited sudo execution of Perl scripts to normal users, this could be exploited to run arbitrary commands as the target user.
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