diff --git a/ghostscript-9.20-cve-2017-7975.patch b/ghostscript-9.20-cve-2017-7975.patch new file mode 100644 index 0000000..beacee8 --- /dev/null +++ b/ghostscript-9.20-cve-2017-7975.patch @@ -0,0 +1,31 @@ +From 5e57e483298dae8b8d4ec9aab37a526736ac2e97 Mon Sep 17 00:00:00 2001 +From: Shailesh Mistry +Date: Wed, 26 Apr 2017 22:12:14 +0100 +Subject: [PATCH] Bug 697693: Prevent SEGV due to integer overflow. + +While building a Huffman table, the start and end points were susceptible +to integer overflow. + +Thank you to Jiaqi for finding this issue and suggesting a patch. +--- + jbig2dec/jbig2_huffman.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/jbig2dec/jbig2_huffman.c b/jbig2dec/jbig2_huffman.c +index 511e461..b4189a1 100644 +--- a/jbig2dec/jbig2_huffman.c ++++ b/jbig2dec/jbig2_huffman.c +@@ -421,8 +421,8 @@ jbig2_build_huffman_table(Jbig2Ctx *ctx, const Jbig2HuffmanParams *params) + + if (PREFLEN == CURLEN) { + int RANGELEN = lines[CURTEMP].RANGELEN; +- int start_j = CURCODE << shift; +- int end_j = (CURCODE + 1) << shift; ++ uint32_t start_j = CURCODE << shift; ++ uint32_t end_j = (CURCODE + 1) << shift; + byte eflags = 0; + + if (end_j > max_j) { +-- +2.9.3 + diff --git a/ghostscript.spec b/ghostscript.spec index ba93dd7..22ba4d9 100644 --- a/ghostscript.spec +++ b/ghostscript.spec @@ -5,7 +5,7 @@ Summary: A PostScript interpreter and renderer Name: ghostscript Version: %{gs_ver} -Release: 9%{?dist} +Release: 10%{?dist} # Included CMap data is Redistributable, no modification permitted, # see http://bugzilla.redhat.com/487510 @@ -37,6 +37,7 @@ Patch16: ghostscript-9.20-cve-2016-10219.patch Patch17: ghostscript-9.20-cve-2016-10220.patch Patch18: ghostscript-9.20-cve-2017-5951.patch Patch19: ghostscript-9.20-cve-2017-8291.patch +Patch20: ghostscript-9.20-cve-2017-7975.patch Requires: %{name}-core%{?_isa} = %{version}-%{release} Requires: %{name}-x11%{?_isa} = %{version}-%{release} @@ -183,6 +184,9 @@ rm -rf expat freetype icclib jasper jpeg jpegxr lcms lcms2 libpng openjpeg zlib # CVE-2017-8291 (bug #1446063): %patch19 -p1 +# CVE-2017-7975 (bug #1443940): +%patch20 -p1 + # Convert manual pages to UTF-8 from8859_1() { iconv -f iso-8859-1 -t utf-8 < "$1" > "${1}_" @@ -379,6 +383,9 @@ rm -rf $RPM_BUILD_ROOT %{_libdir}/libgs.so %changelog +* Wed May 03 2017 David Kaspar [Dee'Kej] - 9.20-10 +- Added security fix for CVE-2017-7975 (bug #1443940) + * Thu Apr 27 2017 David Kaspar [Dee'Kej] - 9.20-9 - Added security fixes for: - CVE-2016-10217 (bug #1441564)