Incomplete blacklist vulnerability in sudo 1.6.8 and earlier allows local...

Vulnerability Description

Incomplete blacklist vulnerability in sudo 1.6.8 and earlier allows local users to gain privileges via the (1) SHELLOPTS and (2) PS4 environment variables before executing a bash script on behalf of another user, which are not cleared even though other variables are.

References

• http://www.sudo.ws/bugs/show_bug.cgi?id=182
• http://secunia.com/advisories/17666
• http://secunia.com/advisories/18549
• http://www.us-cert.gov/cas/techalerts/TA07-072A.html
• http://www.mandriva.com/security/advisories?name=MDKSA-2005:201
• http://lists.apple.com/archives/security-announce/2007/Mar/msg00002.html
• http://docs.info.apple.com/article.html?artnum=305214
• http://www.debian.org/security/2005/dsa-870
• http://secunia.com/advisories/17322
• http://secunia.com/advisories/17390
• http://www.novell.com/linux/security/advisories/2006_02_sr.html
• http://www.securityfocus.com/bid/15191
• http://secunia.com/advisories/17345
• http://www.vupen.com/english/advisories/2007/0930
• http://secunia.com/advisories/17318
• https://usn.ubuntu.com/213-1/
• http://www.securityfocus.com/advisories/9643
• http://www.openpkg.org/security/OpenPKG-SA-2006.002-sudo.html
• http://secunia.com/advisories/24479