It was discovered that the PostgreSQL database performs insufficient
validation of variables passed to privileged SQL statement called
security definers
, which could lead to SQL privilege escalation.
For the oldstable distribution (sarge) this problem has been fixed in version 7.4.7-6sarge5. A powerpc build is not yet available due to problems with the build host. It will be provided later.
For the stable distribution (etch) this problem has been fixed in version 7.4.17-0etch1.
For the unstable distribution (sid) this problem has been fixed in version 7.4.17-1.
We recommend that you upgrade your PostgreSQL packages.
MD5 checksums of the listed files are available in the original advisory.