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libarchive: CVE-2017-14503

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Reject LHA archive entries with negative size.

Affects libarchive = 3.3.2

(From OE-Core rev: d6479f5d2e6de17bac8662f5057d87176524c6fa)

Signed-off-by: Jagadeesh Krishnanjanappa <jkrishnanjanappa@mvista.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Jagadeesh Krishnanjanappa
2018-08-22 17:30:31 +05:30
committed by Richard Purdie
parent 2128c21a0c
commit 79c8c36471
2 changed files with 34 additions and 0 deletions
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33
meta/recipes-extended/libarchive/libarchive/CVE-2017-14503.patch Normal file
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@@ -0,0 +1,33 @@
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.
CVE: CVE-2017-14503
Upstream-Status: Backport [https://github.com/libarchive/libarchive/commit/2c8c83b9731ff822fad6cc8c670ea5519c366a14]
Signed-off-by: Jagadeesh Krishnanjanappa <jkrishnanjanappa@mvista.com>
---
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 b8ef4ae1..95c99bb1 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;
--
2.13.3

1
meta/recipes-extended/libarchive/libarchive_3.3.2.bb
View File

@@ -36,6 +36,7 @@ SRC_URI = "http://libarchive.org/downloads/libarchive-${PV}.tar.gz \
file://CVE-2017-14166.patch \
file://CVE-2017-14502.patch \
file://non-recursive-extract-and-list.patch \
file://CVE-2017-14503.patch \
"
SRC_URI[md5sum] = "4583bd6b2ebf7e0e8963d90879eb1b27"