diff options
Diffstat (limited to 'meta/recipes-support/libxslt/files/CVE-2019-13118.patch')
| -rw-r--r-- | meta/recipes-support/libxslt/files/CVE-2019-13118.patch | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/meta/recipes-support/libxslt/files/CVE-2019-13118.patch b/meta/recipes-support/libxslt/files/CVE-2019-13118.patch new file mode 100644 index 0000000000..595e6c2f33 --- /dev/null +++ b/meta/recipes-support/libxslt/files/CVE-2019-13118.patch @@ -0,0 +1,76 @@ +From 6ce8de69330783977dd14f6569419489875fb71b Mon Sep 17 00:00:00 2001 +From: Nick Wellnhofer <wellnhofer@aevum.de> +Date: Mon, 3 Jun 2019 13:14:45 +0200 +Subject: [PATCH] Fix uninitialized read with UTF-8 grouping chars + +The character type in xsltFormatNumberConversion was too narrow and +an invalid character/length combination could be passed to +xsltNumberFormatDecimal, resulting in an uninitialized read. + +Found by OSS-Fuzz. + +CVE: CVE-2019-13118 +Upstream-Status: Backport [https://gitlab.gnome.org/GNOME/libxslt/commit/6ce8de69330783977dd14f6569419489875fb71b] +Signed-off-by: Anuj Mittal <anuj.mittal@intel.com> + +--- + libxslt/numbers.c | 5 +++-- + tests/docs/bug-222.xml | 1 + + tests/general/bug-222.out | 2 ++ + tests/general/bug-222.xsl | 6 ++++++ + 4 files changed, 12 insertions(+), 2 deletions(-) + create mode 100644 tests/docs/bug-222.xml + create mode 100644 tests/general/bug-222.out + create mode 100644 tests/general/bug-222.xsl + +diff --git a/libxslt/numbers.c b/libxslt/numbers.c +index f1ed8846..20b99d5a 100644 +--- a/libxslt/numbers.c ++++ b/libxslt/numbers.c +@@ -1298,13 +1298,14 @@ OUTPUT_NUMBER: + number = floor((scale * number + 0.5)) / scale; + if ((self->grouping != NULL) && + (self->grouping[0] != 0)) { ++ int gchar; + + len = xmlStrlen(self->grouping); +- pchar = xsltGetUTF8Char(self->grouping, &len); ++ gchar = xsltGetUTF8Char(self->grouping, &len); + xsltNumberFormatDecimal(buffer, floor(number), self->zeroDigit[0], + format_info.integer_digits, + format_info.group, +- pchar, len); ++ gchar, len); + } else + xsltNumberFormatDecimal(buffer, floor(number), self->zeroDigit[0], + format_info.integer_digits, +diff --git a/tests/docs/bug-222.xml b/tests/docs/bug-222.xml +new file mode 100644 +index 00000000..69d62f2c +--- /dev/null ++++ b/tests/docs/bug-222.xml +@@ -0,0 +1 @@ ++<doc/> +diff --git a/tests/general/bug-222.out b/tests/general/bug-222.out +new file mode 100644 +index 00000000..e3139698 +--- /dev/null ++++ b/tests/general/bug-222.out +@@ -0,0 +1,2 @@ ++<?xml version="1.0"?> ++1⠢0 +diff --git a/tests/general/bug-222.xsl b/tests/general/bug-222.xsl +new file mode 100644 +index 00000000..e32dc473 +--- /dev/null ++++ b/tests/general/bug-222.xsl +@@ -0,0 +1,6 @@ ++<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"> ++ <xsl:decimal-format name="f" grouping-separator="⠢"/> ++ <xsl:template match="/"> ++ <xsl:value-of select="format-number(10,'#⠢0','f')"/> ++ </xsl:template> ++</xsl:stylesheet> +-- +2.21.0 + |