[oe-commits] [openembedded-core] 17/42: unzip: fix symlink problem
git at git.openembedded.org
git at git.openembedded.org
Mon Jul 30 11:45:21 UTC 2018
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rpurdie pushed a commit to branch master
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commit a001833b7c7a0a6eef88e053fe65e2a0c91ca7bc
Author: Ross Burton <ross.burton at intel.com>
AuthorDate: Wed Jul 25 21:55:17 2018 +0100
unzip: fix symlink problem
Large zip files can cause unzip to crash, take a patch from Fedora to fix it.
Signed-off-by: Ross Burton <ross.burton at intel.com>
---
meta/recipes-extended/unzip/unzip/symlink.patch | 26 +++++++++++++++++++++++++
meta/recipes-extended/unzip/unzip_6.0.bb | 1 +
2 files changed, 27 insertions(+)
diff --git a/meta/recipes-extended/unzip/unzip/symlink.patch b/meta/recipes-extended/unzip/unzip/symlink.patch
new file mode 100644
index 0000000..a38f6f1
--- /dev/null
+++ b/meta/recipes-extended/unzip/unzip/symlink.patch
@@ -0,0 +1,26 @@
+Unzip doesn't handle large zip files well and crashes:
+
+"This only happens if you have more then 16k entries and when one of
+the 16k entry infos is reused it happend to be previously used for
+a symlink entry."
+
+This patch is taken from Fedora (https://bugzilla.redhat.com/show_bug.cgi?id=972427)
+
+Upstream-Status: Pending (upstream is dead)
+Signed-off-by: Ross Burton <ross.burton at intel.com>
+
+--- unzip60/process.c.sav 2013-06-09 12:08:57.070392264 +0200
++++ unzip60/process.c 2013-06-09 12:10:08.641696988 +0200
+@@ -1751,6 +1751,12 @@
+ = (G.crec.general_purpose_bit_flag & (1 << 11)) == (1 << 11);
+ #endif
+
++#ifdef SYMLINKS
++ /* Initialize the symlink flag, may be set by the platform-specific
++ mapattr function. */
++ G.pInfo->symlink = 0;
++#endif
++
+ return PK_COOL;
+
+ } /* end function process_cdir_file_hdr() */
diff --git a/meta/recipes-extended/unzip/unzip_6.0.bb b/meta/recipes-extended/unzip/unzip_6.0.bb
index 105d048..dbf4112 100644
--- a/meta/recipes-extended/unzip/unzip_6.0.bb
+++ b/meta/recipes-extended/unzip/unzip_6.0.bb
@@ -19,6 +19,7 @@ SRC_URI = "${SOURCEFORGE_MIRROR}/infozip/UnZip%206.x%20%28latest%29/UnZip%206.0/
file://fix-security-format.patch \
file://18-cve-2014-9913-unzip-buffer-overflow.patch \
file://19-cve-2016-9844-zipinfo-buffer-overflow.patch \
+ file://symlink.patch \
"
UPSTREAM_VERSION_UNKNOWN = "1"
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