It was discovered that the PostgreSQL database performs insufficient
validation of variables passed to privileged SQL statements, so called
security definers
, which could lead to SQL privilege escalation.
The oldstable distribution (sarge) doesn't contain PostgreSQL 8.1.
For the stable distribution (etch) this problem has been fixed in version 8.1.9-0etch1.
For the unstable distribution (sid) this problem has been fixed in version 8.1.9-1.
We recommend that you upgrade your PostgreSQL packages.
MD5 checksums of the listed files are available in the original advisory.