1 files changed, 52 insertions, 0 deletions

diff --git a/meta/recipes-extended/unzip/unzip/09-cve-2014-8139-crc-overflow.patch b/meta/recipes-extended/unzip/unzip/09-cve-2014-8139-crc-overflow.patch
new file mode 100644
index 0000000000..e137f0dc76
--- /dev/null
+++ b/meta/recipes-extended/unzip/unzip/09-cve-2014-8139-crc-overflow.patch
@@ -0,0 +1,52 @@
+From: sms
+Subject: Fix CVE-2014-8139: CRC32 verification heap-based overflow
+Bug-Debian: http://bugs.debian.org/773722
+
+The patch comes from unzip_6.0-8+deb7u2.debian.tar.gz
+
+Upstream-Status: Backport
+
+Signed-off-by: Roy Li <rongqing.li@windriver.com>
+
+--- a/extract.c
++++ b/extract.c
+@@ -298,6 +298,8 @@
+ #ifndef SFX
+    static ZCONST char Far InconsistEFlength[] = "bad extra-field entry:\n \
+      EF block length (%u bytes) exceeds remaining EF data (%u bytes)\n";
++   static ZCONST char Far TooSmallEBlength[] = "bad extra-field entry:\n \
++     EF block length (%u bytes) invalid (< %d)\n";
+    static ZCONST char Far InvalidComprDataEAs[] =
+      " invalid compressed data for EAs\n";
+ #  if (defined(WIN32) && defined(NTSD_EAS))
+@@ -2023,7 +2025,8 @@
+         ebID = makeword(ef);
+         ebLen = (unsigned)makeword(ef+EB_LEN);
+ 
+-        if (ebLen > (ef_len - EB_HEADSIZE)) {
++        if (ebLen > (ef_len - EB_HEADSIZE))
++        {
+            /* Discovered some extra field inconsistency! */
+             if (uO.qflag)
+                 Info(slide, 1, ((char *)slide, "%-22s ",
+@@ -2158,11 +2161,19 @@
+                 }
+                 break;
+             case EF_PKVMS:
+-                if (makelong(ef+EB_HEADSIZE) !=
++                if (ebLen < 4)
++                {
++                    Info(slide, 1,
++                     ((char *)slide, LoadFarString(TooSmallEBlength),
++                     ebLen, 4));
++                }
++                else if (makelong(ef+EB_HEADSIZE) !=
+                     crc32(CRCVAL_INITIAL, ef+(EB_HEADSIZE+4),
+                           (extent)(ebLen-4)))
++                {
+                     Info(slide, 1, ((char *)slide,
+                       LoadFarString(BadCRC_EAs)));
++                }
+                 break;
+             case EF_PKW32:
+             case EF_PKUNIX: