diff options
Diffstat (limited to 'pkg/unzip/patch/0010-Info-ZIP-UnZip-buffer-overflow.patch')
| -rw-r--r-- | pkg/unzip/patch/0010-Info-ZIP-UnZip-buffer-overflow.patch | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/pkg/unzip/patch/0010-Info-ZIP-UnZip-buffer-overflow.patch b/pkg/unzip/patch/0010-Info-ZIP-UnZip-buffer-overflow.patch new file mode 100644 index 00000000..edd9706f --- /dev/null +++ b/pkg/unzip/patch/0010-Info-ZIP-UnZip-buffer-overflow.patch @@ -0,0 +1,41 @@ +From fb09687478043d64dc433bd034d063f33f718084 Mon Sep 17 00:00:00 2001 +From: mancha <mancha1@zoho.com> +Date: Thu, 16 Jun 2016 22:42:17 -0700 +Subject: [PATCH] Info-ZIP UnZip buffer overflow + +From 12-cve-2014-9636-test-compr-eb in +unzip_6.0-16+deb8u2.debian.tar.xz. +--- + extract.c | 9 +++++++++ + 1 file changed, 9 insertions(+) + +diff --git a/extract.c b/extract.c +index ec31e60..d816603 100644 +--- a/extract.c ++++ b/extract.c +@@ -2228,6 +2228,7 @@ static int test_compr_eb(__G__ eb, eb_size, compr_offset, test_uc_ebdata) + ulg eb_ucsize; + uch *eb_ucptr; + int r; ++ ush eb_compr_method; + + if (compr_offset < 4) /* field is not compressed: */ + return PK_OK; /* do nothing and signal OK */ +@@ -2244,6 +2245,14 @@ static int test_compr_eb(__G__ eb, eb_size, compr_offset, test_uc_ebdata) + ((eb_ucsize > 0L) && (eb_size <= (compr_offset + EB_CMPRHEADLEN)))) + return IZ_EF_TRUNC; /* no/bad compressed data! */ + ++ /* 2014-11-03 Michal Zalewski, SMS. ++ * For STORE method, compressed and uncompressed sizes must agree. ++ * http://www.info-zip.org/phpBB3/viewtopic.php?f=7&t=450 ++ */ ++ eb_compr_method = makeword( eb + (EB_HEADSIZE + compr_offset)); ++ if ((eb_compr_method == STORED) && (eb_size - compr_offset != eb_ucsize)) ++ return PK_ERR; ++ + if ( + #ifdef INT_16BIT + (((ulg)(extent)eb_ucsize) != eb_ucsize) || +-- +2.8.1 + |