0b34b58688
* gnu/packages/patches/libxslt-CVE-2016-4738.patch: New file. * gnu/local.mk (dist_patch_DATA): Add it. * gnu/packages/xml.scm (libxslt)[replacement]: New field. (libxslt/fixed): New variable.
40 lines
1.3 KiB
Diff
40 lines
1.3 KiB
Diff
Fix CVE-2016-4738:
|
|
|
|
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4738
|
|
https://bugs.chromium.org/p/chromium/issues/detail?id=619006
|
|
|
|
Patch copied from upstream source repository:
|
|
https://git.gnome.org/browse/libxslt/commit/?id=eb1030de31165b68487f288308f9d1810fed6880
|
|
|
|
From eb1030de31165b68487f288308f9d1810fed6880 Mon Sep 17 00:00:00 2001
|
|
From: Nick Wellnhofer <wellnhofer@aevum.de>
|
|
Date: Fri, 10 Jun 2016 14:23:58 +0200
|
|
Subject: [PATCH] Fix heap overread in xsltFormatNumberConversion
|
|
|
|
An empty decimal-separator could cause a heap overread. This can be
|
|
exploited to leak a couple of bytes after the buffer that holds the
|
|
pattern string.
|
|
|
|
Found with afl-fuzz and ASan.
|
|
---
|
|
libxslt/numbers.c | 3 ++-
|
|
1 file changed, 2 insertions(+), 1 deletion(-)
|
|
|
|
diff --git a/libxslt/numbers.c b/libxslt/numbers.c
|
|
index d1549b4..e78c46b 100644
|
|
--- a/libxslt/numbers.c
|
|
+++ b/libxslt/numbers.c
|
|
@@ -1090,7 +1090,8 @@ xsltFormatNumberConversion(xsltDecimalFormatPtr self,
|
|
}
|
|
|
|
/* We have finished the integer part, now work on fraction */
|
|
- if (xsltUTF8Charcmp(the_format, self->decimalPoint) == 0) {
|
|
+ if ( (*the_format != 0) &&
|
|
+ (xsltUTF8Charcmp(the_format, self->decimalPoint) == 0) ) {
|
|
format_info.add_decimal = TRUE;
|
|
the_format += xsltUTF8Size(the_format); /* Skip over the decimal */
|
|
}
|
|
--
|
|
2.10.2
|
|
|