summary refs log tree commit diff
path: root/gnu/packages/patches/unzip-CVE-2015-7697.patch
diff options
context:
space:
mode:
authorMark H Weaver <mhw@netris.org>2015-10-22 14:54:43 -0400
committerMark H Weaver <mhw@netris.org>2015-10-23 23:12:06 -0400
commit51de92a08e11b11ac9e5bbb2938be2ad0de02d80 (patch)
tree6203b6bfb46a4fc9541d3f9922ba5c59c295115d /gnu/packages/patches/unzip-CVE-2015-7697.patch
parentd3365d486636b36c95ce17deefbc169f3d4f0e9a (diff)
downloadguix-51de92a08e11b11ac9e5bbb2938be2ad0de02d80.tar.gz
gnu: unzip: Reorganize security fixes for improved clarity.
* gnu/packages/patches/unzip-fix-overflows-and-infloop.patch: Delete
  file.  Its contents are now split into the following new files:
* gnu/packages/patches/unzip-CVE-2015-7696.patch,
  gnu/packages/patches/unzip-CVE-2015-7697.patch,
  gnu/packages/patches/unzip-overflow-on-invalid-input.patch: New files.
* gnu-system.am (dist_patch_DATA): Adjust accordingly.
* gnu/packages/zip.scm (unzip)[source]: Adjust patches accordingly.
Diffstat (limited to 'gnu/packages/patches/unzip-CVE-2015-7697.patch')
-rw-r--r--gnu/packages/patches/unzip-CVE-2015-7697.patch28
1 files changed, 28 insertions, 0 deletions
diff --git a/gnu/packages/patches/unzip-CVE-2015-7697.patch b/gnu/packages/patches/unzip-CVE-2015-7697.patch
new file mode 100644
index 0000000000..d688b42495
--- /dev/null
+++ b/gnu/packages/patches/unzip-CVE-2015-7697.patch
@@ -0,0 +1,28 @@
+Copied from Debian.
+
+From: Kamil Dudka <kdudka@redhat.com>
+Date: Mon, 14 Sep 2015 18:24:56 +0200
+Subject: fix infinite loop when extracting empty bzip2 data
+Bug-Debian: https://bugs.debian.org/802160
+Bug-RedHat: https://bugzilla.redhat.com/show_bug.cgi?id=1260944
+Origin: other, https://bugzilla.redhat.com/attachment.cgi?id=1073339
+
+---
+ extract.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/extract.c
++++ b/extract.c
+@@ -2728,6 +2728,12 @@
+     int repeated_buf_err;
+     bz_stream bstrm;
+ 
++    if (G.incnt <= 0 && G.csize <= 0L) {
++        /* avoid an infinite loop */
++        Trace((stderr, "UZbunzip2() got empty input\n"));
++        return 2;
++    }
++
+ #if (defined(DLL) && !defined(NO_SLIDE_REDIR))
+     if (G.redirect_slide)
+         wsize = G.redirect_size, redirSlide = G.redirect_buffer;