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gnu: lrzip: Fix CVE-2017-8842.

* gnu/packages/compression.scm (lrzip)[source]: Add patch.
* gnu/packages/patches/lrzip-CVE-2017-8842.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
master
Tobias Geerinckx-Rice 2018-03-12 18:08:04 +01:00
parent a440a6af09
commit 5400fdfd5d
No known key found for this signature in database
GPG Key ID: 0DB0FF884F556D79
3 changed files with 26 additions and 1 deletions

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@ -885,6 +885,7 @@ dist_patch_DATA = \
%D%/packages/patches/llvm-3.5-fix-clang-build-with-gcc5.patch \ %D%/packages/patches/llvm-3.5-fix-clang-build-with-gcc5.patch \
%D%/packages/patches/llvm-for-extempore.patch \ %D%/packages/patches/llvm-for-extempore.patch \
%D%/packages/patches/lm-sensors-hwmon-attrs.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-CVE-2014-5461.patch \
%D%/packages/patches/lua-pkgconfig.patch \ %D%/packages/patches/lua-pkgconfig.patch \
%D%/packages/patches/lua51-liblua-so.patch \ %D%/packages/patches/lua51-liblua-so.patch \

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@ -1017,7 +1017,8 @@ human-readable output.")
"http://ck.kolivas.org/apps/lrzip/lrzip-" version ".tar.bz2")) "http://ck.kolivas.org/apps/lrzip/lrzip-" version ".tar.bz2"))
(sha256 (sha256
(base32 (base32
"0mb449vmmwpkalq732jdyginvql57nxyd31sszb108yps1lf448d")))) "0mb449vmmwpkalq732jdyginvql57nxyd31sszb108yps1lf448d"))
(patches (search-patches "lrzip-CVE-2017-8842.patch"))))
(build-system gnu-build-system) (build-system gnu-build-system)
(native-inputs (native-inputs
`(;; nasm is only required when building for 32-bit x86 platforms `(;; nasm is only required when building for 32-bit x86 platforms

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@ -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;