33 lines
1.0 KiB
Diff
33 lines
1.0 KiB
Diff
|
From 2c8c83b9731ff822fad6cc8c670ea5519c366a14 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Joerg Sonnenberger <joerg@bec.de>
|
||
|
|
Date: Thu, 19 Jul 2018 21:14:53 +0200
|
||
|
|
Subject: [PATCH] Reject LHA archive entries with negative size.
|
||
|
|
|
||
|
|
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
|
||
|
|
---
|
||
|
|
Upstream status: commit 2c8c83b9731
|
||
|
|
|
||
|
|
libarchive/archive_read_support_format_lha.c | 6 ++++++
|
||
|
|
1 file changed, 6 insertions(+)
|
||
|
|
|
||
|
|
diff --git a/libarchive/archive_read_support_format_lha.c b/libarchive/archive_read_support_format_lha.c
|
||
|
|
index b8ef4ae10ece..95c99bb1f31e 100644
|
||
|
|
--- a/libarchive/archive_read_support_format_lha.c
|
||
|
|
+++ b/libarchive/archive_read_support_format_lha.c
|
||
|
|
@@ -701,6 +701,12 @@ archive_read_format_lha_read_header(struct archive_read *a,
|
||
|
|
* Prepare variables used to read a file content.
|
||
|
|
*/
|
||
|
|
lha->entry_bytes_remaining = lha->compsize;
|
||
|
|
+ if (lha->entry_bytes_remaining < 0) {
|
||
|
|
+ archive_set_error(&a->archive,
|
||
|
|
+ ARCHIVE_ERRNO_FILE_FORMAT,
|
||
|
|
+ "Invalid LHa entry size");
|
||
|
|
+ return (ARCHIVE_FATAL);
|
||
|
|
+ }
|
||
|
|
lha->entry_offset = 0;
|
||
|
|
lha->entry_crc_calculated = 0;
|
||
|
|
|
||
|
|
--
|
||
|
|
2.18.0
|
||
|
|
|