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| | Fix a null pointer dereference in png_set_text_2():
http://seclists.org/oss-sec/2016/q4/777
Patch adapted from upstream source repository:
https://sourceforge.net/p/libpng/code/ci/794a15fad6add4d636369d0b46f603a02995b2e2/
From 794a15fad6add4d636369d0b46f603a02995b2e2 Mon Sep 17 00:00:00 2001
From: Glenn Randers-Pehrson <glennrp at users.sourceforge.net>
Date: Thu, 29 Dec 2016 07:34:51 -0600
Subject: [PATCH] [libpng12] Fixed a potential null pointer dereference in
png_set_text_2()
(bug report and patch by Patrick Keshishian).
---
ANNOUNCE | 2 ++
CHANGES | 4 +++-
png.c | 1 +
3 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/png.c b/png.c
index 08d7e86b7..a4934d1d5 100644
--- a/png.c
+++ b/png.c
@@ -393,6 +393,7 @@ png_free_data(png_structp png_ptr, png_infop info_ptr, png_uint_32 mask,
png_free(png_ptr, info_ptr->text);
info_ptr->text = NULL;
info_ptr->num_text=0;
+ info_ptr->max_text=0;
}
}
#endif
--
2.11.0
|