to_char(): prevent accesses beyond the allocated buffer

Bruce Momjian <bruce@momjian.us>

Commit: b8b5801478e9cdd1c74bd392017b944dcc0891dc
Author: Bruce Momjian <bruce@momjian.us>
Date: 2015-02-02T15:00:50Z
Releases: 9.3.6
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