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-rw-r--r--gnu/local.mk1
-rw-r--r--gnu/packages/compression.scm3
-rw-r--r--gnu/packages/patches/lrzip-CVE-2017-8842.patch23
3 files changed, 26 insertions, 1 deletions
diff --git a/gnu/local.mk b/gnu/local.mk
index 5c95cdae21..97d5e00c2b 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -885,6 +885,7 @@ dist_patch_DATA = \
%D%/packages/patches/llvm-3.5-fix-clang-build-with-gcc5.patch \
%D%/packages/patches/llvm-for-extempore.patch \
%D%/packages/patches/lm-sensors-hwmon-attrs.patch \
+ %D%/packages/patches/lrzip-CVE-2017-8842.patch \
%D%/packages/patches/lua-CVE-2014-5461.patch \
%D%/packages/patches/lua-pkgconfig.patch \
%D%/packages/patches/lua51-liblua-so.patch \
diff --git a/gnu/packages/compression.scm b/gnu/packages/compression.scm
index d44ae2d259..86efe2a40e 100644
--- a/gnu/packages/compression.scm
+++ b/gnu/packages/compression.scm
@@ -1017,7 +1017,8 @@ human-readable output.")
"http://ck.kolivas.org/apps/lrzip/lrzip-" version ".tar.bz2"))
(sha256
(base32
- "0mb449vmmwpkalq732jdyginvql57nxyd31sszb108yps1lf448d"))))
+ "0mb449vmmwpkalq732jdyginvql57nxyd31sszb108yps1lf448d"))
+ (patches (search-patches "lrzip-CVE-2017-8842.patch"))))
(build-system gnu-build-system)
(native-inputs
`(;; nasm is only required when building for 32-bit x86 platforms
diff --git a/gnu/packages/patches/lrzip-CVE-2017-8842.patch b/gnu/packages/patches/lrzip-CVE-2017-8842.patch
new file mode 100644
index 0000000000..89b4f2f5d9
--- /dev/null
+++ b/gnu/packages/patches/lrzip-CVE-2017-8842.patch
@@ -0,0 +1,23 @@
+From 38386bd482c0a8102a79958cb3eddcb97a167ca3 Mon Sep 17 00:00:00 2001
+From: Con Kolivas <kernel@kolivas.org>
+Date: Fri, 9 Mar 2018 17:39:40 +1100
+Subject: [PATCH] CVE-2017-8842 Fix divide-by-zero in bufRead::get
+
+---
+ libzpaq/libzpaq.h | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/libzpaq/libzpaq.h b/libzpaq/libzpaq.h
+index 93387da..cbe211d 100644
+--- a/libzpaq/libzpaq.h
++++ b/libzpaq/libzpaq.h
+@@ -465,7 +465,8 @@ struct bufRead: public libzpaq::Reader {
+
+ int get() {
+ if (progress && !(*s_len % 128)) {
+- int pct = (total_len - *s_len) * 100 / total_len;
++ int pct = (total_len > 0) ?
++ (total_len - *s_len) * 100 / total_len : 100;
+
+ if (pct / 10 != *last_pct / 10) {
+ int i;