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| author | Zach van Rijn <me@zv.io> | 2022-04-25 15:57:18 -0500 |
|---|---|---|
| committer | A. Wilcox <AWilcox@Wilcox-Tech.com> | 2022-05-01 17:06:42 -0500 |
| commit | d505b70a4b404d526d43a2da7bbd5cc3653e8294 (patch) | |
| tree | 5a29cda96e6b80b3338660d55ced3f76536a7e5d /system/lz4/CVE-2021-3520.patch | |
| parent | db78f87a0f47ba0362c30e510c3bc585bacfaf8b (diff) | |
| download | packages-d505b70a4b404d526d43a2da7bbd5cc3653e8294.tar.gz packages-d505b70a4b404d526d43a2da7bbd5cc3653e8294.tar.bz2 packages-d505b70a4b404d526d43a2da7bbd5cc3653e8294.tar.xz packages-d505b70a4b404d526d43a2da7bbd5cc3653e8294.zip | |
system/lz4: add patch for CVE-2021-3520. fixes #597.
Diffstat (limited to 'system/lz4/CVE-2021-3520.patch')
| -rw-r--r-- | system/lz4/CVE-2021-3520.patch | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/system/lz4/CVE-2021-3520.patch b/system/lz4/CVE-2021-3520.patch new file mode 100644 index 000000000..053958dfe --- /dev/null +++ b/system/lz4/CVE-2021-3520.patch @@ -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; |