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main/lz4: backport fix for CVE-2021-3520

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ref: https://github.com/lz4/lz4/pull/972
This commit is contained in:
Natanael Copa 2021-12-08 12:41:55 +01:00
parent 621a4bc854
commit 31d7bef259
2 changed files with 32 additions and 3 deletions
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13
main/lz4/APKBUILD
View File

@ -2,16 +2,20 @@
# Maintainer: Stuart Cardall <developer@it-offshore.co.uk>
pkgname=lz4
pkgver=1.9.3
pkgrel=0
pkgrel=1
pkgdesc="LZ4 is lossless compression algorithm with fast decoder @ multiple GB/s per core."
url="https://github.com/lz4/lz4"
arch="all"
license="BSD-2-Clause GPL-2.0-only"
checkdepends="diffutils"
subpackages="$pkgname-static $pkgname-dev $pkgname-doc $pkgname-libs $pkgname-tests:tests"
source="$pkgname-$pkgver.tar.gz::https://github.com/lz4/lz4/archive/v$pkgver.tar.gz"
source="$pkgname-$pkgver.tar.gz::https://github.com/lz4/lz4/archive/v$pkgver.tar.gz
CVE-2021-3520.patch
"
# secfixes:
# 1.9.3-r1:
# - CVE-2021-3520
# 1.9.2-r0:
# - CVE-2019-17543
@ -35,4 +39,7 @@ package() {
make PREFIX="/usr" DESTDIR="$pkgdir" install
}
sha512sums="c246b0bda881ee9399fa1be490fa39f43b291bb1d9db72dba8a85db1a50aad416a97e9b300eee3d2a4203c2bd88bda2762e81bc229c3aa409ad217eb306a454c lz4-1.9.3.tar.gz"
sha512sums="
c246b0bda881ee9399fa1be490fa39f43b291bb1d9db72dba8a85db1a50aad416a97e9b300eee3d2a4203c2bd88bda2762e81bc229c3aa409ad217eb306a454c lz4-1.9.3.tar.gz
29038d80c4399ded52b49e69d0f0d80bef8bf424e3540de366ef539706c8c1119784d6137c96130f131239d74a4c110dd9790cae5c9b17c102820446582c5637 CVE-2021-3520.patch
"

22
main/lz4/CVE-2021-3520.patch Normal file
View File

@ -0,0 +1,22 @@
From 8301a21773ef61656225e264f4f06ae14462bca7 Mon Sep 17 00:00:00 2001
From: Jasper Lievisse Adriaanse <j@jasper.la>
Date: Fri, 26 Feb 2021 15:21:20 +0100
Subject: [PATCH] Fix potential memory corruption with negative memmove() size
---
lib/lz4.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/lz4.c b/lib/lz4.c
index 5f524d01d..c2f504ef3 100644
--- a/lib/lz4.c
+++ b/lib/lz4.c
@@ -1749,7 +1749,7 @@ LZ4_decompress_generic(
const size_t dictSize /* note : = 0 if noDict */
)
{
- if (src == NULL) { return -1; }
+ if ((src == NULL) || (outputSize < 0)) { return -1; }
{ const BYTE* ip = (const BYTE*) src;
const BYTE* const iend = ip + srcSize;