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gnu: unzip: Add fixes for CVE-2014-{8139,8140,8141}.

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* gnu/packages/patches/unzip-CVE-2014-8139.patch,
  gnu/packages/patches/unzip-CVE-2014-8140.patch,
  gnu/packages/patches/unzip-CVE-2014-8141.patch: New files.
* gnu-system.am (dist_patch_DATA): Add them.
* gnu/packages/zip.scm (unzip): Add patches.
This commit is contained in:
Mark H Weaver 2014-12-30 14:46:21 -05:00
parent c7bdc7ece5
commit e5da2f38c3
5 changed files with 220 additions and 1 deletions
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27
gnu/packages/patches/unzip-CVE-2014-8140.patch Normal file
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@ -0,0 +1,27 @@
From: sms
Subject: Fix CVE-2014-8140: out-of-bounds write issue in test_compr_eb()
Bug-Debian: http://bugs.debian.org/773722
--- a/extract.c
+++ b/extract.c
@@ -2234,10 +2234,17 @@
if (compr_offset < 4) /* field is not compressed: */
return PK_OK; /* do nothing and signal OK */
+ /* Return no/bad-data error status if any problem is found:
+ * 1. eb_size is too small to hold the uncompressed size
+ * (eb_ucsize). (Else extract eb_ucsize.)
+ * 2. eb_ucsize is zero (invalid). 2014-12-04 SMS.
+ * 3. eb_ucsize is positive, but eb_size is too small to hold
+ * the compressed data header.
+ */
if ((eb_size < (EB_UCSIZE_P + 4)) ||
- ((eb_ucsize = makelong(eb+(EB_HEADSIZE+EB_UCSIZE_P))) > 0L &&
- eb_size <= (compr_offset + EB_CMPRHEADLEN)))
- return IZ_EF_TRUNC; /* no compressed data! */
+ ((eb_ucsize = makelong( eb+ (EB_HEADSIZE+ EB_UCSIZE_P))) == 0L) ||
+ ((eb_ucsize > 0L) && (eb_size <= (compr_offset + EB_CMPRHEADLEN))))
+ return IZ_EF_TRUNC; /* no/bad compressed data! */
if (
#ifdef INT_16BIT