libarchive: CVE-2017-14503

Reject LHA archive entries with negative size.

Affects libarchive = 3.3.2

(From OE-Core rev: 3e000591928cfc35df192c7eb00db65687930566)

Signed-off-by: Jagadeesh Krishnanjanappa <jkrishnanjanappa@mvista.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 33 insertions, 0 deletions

diff --git a/meta/recipes-extended/libarchive/libarchive/CVE-2017-14503.patch b/meta/recipes-extended/libarchive/libarchive/CVE-2017-14503.patch
new file mode 100644
index 0000000000..42fa68caeb
--- /dev/null
+++ b/meta/recipes-extended/libarchive/libarchive/CVE-2017-14503.patch
@@ -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
+