to_char(): prevent accesses beyond the allocated buffer

Bruce Momjian <bruce@momjian.us>

Commit: 611e110aabdf4b5edfed178b34ba662b1549674a
Author: Bruce Momjian <bruce@momjian.us>
Date: 2015-02-02T15:00:52Z
Releases: 9.0.19
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