cpe:/a:immunix:stackguard:1.21 CVE-1999-1111 1999-11-09T00:00:00.000-05:00 2017-10-09T21:29:02.153-04:00 7.5 NETWORK LOW NONE PARTIAL PARTIAL PARTIAL http://nvd.nist.gov 2004-01-01T00:00:00.000-05:00 BUGTRAQ 19911109 ImmuniX OS Security Alert: StackGuard 1.21 Released BID 786 XF immunix-stackguard-bo(3524) Vulnerability in StackGuard before 1.21 allows remote attackers to bypass the Random and Terminator Canary security mechanisms by using a non-linear attack which directly modifies a pointer to a return address instead of using a buffer overflow to reach the return address entry itself.