to_char(): prevent accesses beyond the allocated buffer

Bruce Momjian <bruce@momjian.us>

Commit: 0150ab567bcf5e5913e2b62a1678f84cc272441f
Author: Bruce Momjian <bruce@momjian.us>
Date: 2015-02-02T15:00:44Z
Releases: 9.5.0
to_char():  prevent accesses beyond the allocated buffer

Previously very long field masks for floats could access memory
beyond the existing buffer allocated to hold the result.

Reported by Andres Freund and Peter Geoghegan.	Backpatch to all
supported versions.

Security: CVE-2015-0241

Files

PathChange+/−
src/backend/utils/adt/formatting.c modified +3 −1