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nixpkgs/pkgs/tools/misc/mcrypt/overflow.patch
2016-01-07 10:10:30 +01:00

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From 3efb40e17ce4f76717ae17a1ce1e1f747ddf59fd Mon Sep 17 00:00:00 2001
From: Alon Bar-Lev <alon.barlev@gmail.com>
Date: Sat, 22 Dec 2012 22:37:06 +0200
Subject: [PATCH] cleanup: buffer overflow
---
mcrypt-2.6.8/src/extra.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/mcrypt-2.6.8/src/extra.c b/mcrypt-2.6.8/src/extra.c
index 3082f82..c7a1ac0 100644
--- a/src/extra.c
+++ b/src/extra.c
@@ -241,6 +241,8 @@ int check_file_head(FILE * fstream, char *algorithm, char *mode,
if (m_getbit(6, flags) == 1) { /* if the salt bit is set */
if (m_getbit(0, sflag) != 0) { /* if the first bit is set */
*salt_size = m_setbit(0, sflag, 0);
+ if (*salt_size > sizeof(tmp_buf))
+ err_quit(_("Salt is too long\n"));
if (*salt_size > 0) {
fread(tmp_buf, 1, *salt_size,
fstream);
--
1.7.8.6