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SUSE:SLE-12-SP1:GA
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fix-out-of-bounds-access.patch
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File fix-out-of-bounds-access.patch of Package patch
From: Hanno Boeck <hanno@gentoo.org> Date: Wed, 10 Aug 2016 00:06:41 +0200 Subject: Fix out-of-bounds access to lines in a patch Patch-mainline: v2.7.6 Git-commit: a0d7fe4589651c64bd16ddaaa634030bb0455866 References: bsc#1080918, CVE-2016-10713 This bug can trigger with malformed patches. * src/pch.c (pch_write_line): Avoid out-of-bounds access to p_line[line][p_len[line] - 1] when p_len[line] is 0. --- src/pch.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/src/pch.c +++ b/src/pch.c @@ -2275,7 +2275,7 @@ pfetch (lin line) bool pch_write_line (lin line, FILE *file) { - bool after_newline = p_line[line][p_len[line] - 1] == '\n'; + bool after_newline = (p_len[line] > 0) && (p_line[line][p_len[line] - 1] == '\n'); if (! fwrite (p_line[line], sizeof (*p_line[line]), p_len[line], file)) write_fatal (); return after_newline;
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