From cc9a97f0cb14009409ad66c189402b6b50f873e2 Mon Sep 17 00:00:00 2001
From: manuroe <manu@matrix.org>
Date: Wed, 17 Oct 2018 11:29:34 +0200
Subject: OLMKit: Zero buffers out in all pickle & unpickle methods

---
 xcode/OLMKit/OLMOutboundGroupSession.m | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'xcode/OLMKit/OLMOutboundGroupSession.m')

diff --git a/xcode/OLMKit/OLMOutboundGroupSession.m b/xcode/OLMKit/OLMOutboundGroupSession.m
index a3421fd..a0a7cc6 100644
--- a/xcode/OLMKit/OLMOutboundGroupSession.m
+++ b/xcode/OLMKit/OLMOutboundGroupSession.m
@@ -148,6 +148,7 @@
     }
     NSMutableData *pickle = [serializedData dataUsingEncoding:NSUTF8StringEncoding].mutableCopy;
     size_t result = olm_unpickle_outbound_group_session(session, key.bytes, key.length, pickle.mutableBytes, pickle.length);
+    [pickle resetBytesInRange:NSMakeRange(0, pickle.length)];
     if (result == olm_error()) {
         const char *olm_error = olm_outbound_group_session_last_error(session);
         NSString *errorString = [NSString stringWithUTF8String:olm_error];
@@ -174,6 +175,7 @@
         return nil;
     }
     NSString *pickleString = [[NSString alloc] initWithData:pickled encoding:NSUTF8StringEncoding];
+    [pickled resetBytesInRange:NSMakeRange(0, pickled.length)];
     return pickleString;
 }
 
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