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gnu: libextractor: Fix CVE-2018-{20430,20431}.

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* gnu/packages/patches/libextractor-CVE-2018-20430.patch,
gnu/packages/patches/libextractor-CVE-2018-20431.patch: New files.
* gnu/local.mk (dist_patch_DATA): Add them.
* gnu/packages/gnunet.scm (libextractor)[source]: Use them.
This commit is contained in:
Alex Vong 2018-12-31 06:50:48 +08:00
parent 1983a9b0a5
commit 8f36c8e9ea
No known key found for this signature in database
GPG Key ID: 61EF502EF60252F2
4 changed files with 117 additions and 0 deletions
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2
gnu/local.mk
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@ -889,6 +889,8 @@ dist_patch_DATA = \
%D%/packages/patches/libevent-2.1-skip-failing-test.patch \
%D%/packages/patches/libexif-CVE-2016-6328.patch \
%D%/packages/patches/libexif-CVE-2017-7544.patch \
%D%/packages/patches/libextractor-CVE-2018-20430.patch \
%D%/packages/patches/libextractor-CVE-2018-20431.patch \
%D%/packages/patches/libgcrypt-make-yat2m-reproducible.patch \
%D%/packages/patches/libgit2-mtime-0.patch \
%D%/packages/patches/libgit2-oom-test.patch \

2
gnu/packages/gnunet.scm
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@ -73,6 +73,8 @@
(method url-fetch)
(uri (string-append "mirror://gnu/libextractor/libextractor-"
version ".tar.gz"))
(patches (search-patches "libextractor-CVE-2018-20430.patch"
"libextractor-CVE-2018-20431.patch"))
(sha256
(base32
"1z1cb35griqzvshqdv5ck98dy0sgpsswn7fgiy7lbzi34sma8dg2"))))

60
gnu/packages/patches/libextractor-CVE-2018-20430.patch Normal file
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@ -0,0 +1,60 @@
Fix CVE-2018-20430:
https://gnunet.org/bugs/view.php?id=5493
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20430
https://security-tracker.debian.org/tracker/CVE-2018-20430
Patch copied from upstream source repository:
https://gnunet.org/git/libextractor.git/commit/?id=b405d707b36e0654900cba78e89f49779efea110
From b405d707b36e0654900cba78e89f49779efea110 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Thu, 20 Dec 2018 22:47:53 +0100
Subject: [PATCH] fix #5493 (out of bounds read)
---
src/common/convert.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/src/common/convert.c b/src/common/convert.c
index c0edf21..2be2108 100644
--- a/src/common/convert.c
+++ b/src/common/convert.c
@@ -36,8 +36,8 @@
* string is returned.
*/
char *
-EXTRACTOR_common_convert_to_utf8 (const char *input,
- size_t len,
+EXTRACTOR_common_convert_to_utf8 (const char *input,
+ size_t len,
const char *charset)
{
#if HAVE_ICONV
@@ -52,7 +52,7 @@ EXTRACTOR_common_convert_to_utf8 (const char *input,
i = input;
cd = iconv_open ("UTF-8", charset);
if (cd == (iconv_t) - 1)
- return strdup (i);
+ return strndup (i, len);
if (len > 1024 * 1024)
{
iconv_close (cd);
@@ -67,11 +67,11 @@ EXTRACTOR_common_convert_to_utf8 (const char *input,
}
itmp = tmp;
finSize = tmpSize;
- if (iconv (cd, (char **) &input, &len, &itmp, &finSize) == SIZE_MAX)
+ if (iconv (cd, (char **) &input, &len, &itmp, &finSize) == ((size_t) -1))
{
iconv_close (cd);
free (tmp);
- return strdup (i);
+ return strndup (i, len);
}
ret = malloc (tmpSize - finSize + 1);
if (ret == NULL)
--
2.20.1

53
gnu/packages/patches/libextractor-CVE-2018-20431.patch Normal file
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@ -0,0 +1,53 @@
Fix CVE-2018-20431:
https://gnunet.org/bugs/view.php?id=5494
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20431
https://security-tracker.debian.org/tracker/CVE-2018-20431
Patch copied from upstream source repository:
https://gnunet.org/git/libextractor.git/commit/?id=489c4a540bb2c4744471441425b8932b97a153e7
To apply the patch to libextractor 1.8 release tarball,
hunk #1 which patches ChangeLog is removed.
From 489c4a540bb2c4744471441425b8932b97a153e7 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Thu, 20 Dec 2018 23:02:28 +0100
Subject: [PATCH] fix #5494
---
ChangeLog | 3 ++-
src/plugins/ole2_extractor.c | 9 +++++++--
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/src/plugins/ole2_extractor.c b/src/plugins/ole2_extractor.c
index 53fa1b9..a48b726 100644
--- a/src/plugins/ole2_extractor.c
+++ b/src/plugins/ole2_extractor.c
@@ -173,7 +173,7 @@ struct ProcContext
EXTRACTOR_MetaDataProcessor proc;
/**
- * Closure for 'proc'.
+ * Closure for @e proc.
*/
void *proc_cls;
@@ -213,7 +213,12 @@ process_metadata (gpointer key,
if (G_VALUE_TYPE(gval) == G_TYPE_STRING)
{
- contents = strdup (g_value_get_string (gval));
+ const char *gvals;
+
+ gvals = g_value_get_string (gval);
+ if (NULL == gvals)
+ return;
+ contents = strdup (gvals);
}
else
{
--
2.20.1