From bf6c30908948b7bc9be1206fe88c09dc3f526387 Mon Sep 17 00:00:00 2001 From: Sona Sarmadi Date: Tue, 3 Nov 2015 09:06:31 +0100 Subject: libxml2: CVE-2015-7942 Fixes heap-based buffer overflow in xmlParseConditionalSections(). Upstream patch: https://git.gnome.org/browse/libxml2/commit/ ?id=9b8512337d14c8ddf662fcb98b0135f225a1c489 Upstream bug: https://bugzilla.gnome.org/show_bug.cgi?id=756456 Signed-off-by: Sona Sarmadi Signed-off-by: Tudor Florea --- meta/recipes-core/libxml/libxml2.inc | 1 + .../libxml/libxml2/CVE-2015-7942.patch | 58 ++++++++++++++++++++++ 2 files changed, 59 insertions(+) create mode 100644 meta/recipes-core/libxml/libxml2/CVE-2015-7942.patch (limited to 'meta') diff --git a/meta/recipes-core/libxml/libxml2.inc b/meta/recipes-core/libxml/libxml2.inc index 840a8eb006..15a2421c38 100644 --- a/meta/recipes-core/libxml/libxml2.inc +++ b/meta/recipes-core/libxml/libxml2.inc @@ -23,6 +23,7 @@ SRC_URI = "ftp://xmlsoft.org/libxml2/libxml2-${PV}.tar.gz;name=libtar \ file://libxml-m4-use-pkgconfig.patch \ file://libxml2-CVE-2014-3660.patch \ file://0001-CVE-2015-1819-Enforce-the-reader-to-run-in-constant-.patch \ + file://CVE-2015-7942.patch \ " BINCONFIG = "${bindir}/xml2-config" diff --git a/meta/recipes-core/libxml/libxml2/CVE-2015-7942.patch b/meta/recipes-core/libxml/libxml2/CVE-2015-7942.patch new file mode 100644 index 0000000000..738ae94de8 --- /dev/null +++ b/meta/recipes-core/libxml/libxml2/CVE-2015-7942.patch @@ -0,0 +1,58 @@ +From 9b8512337d14c8ddf662fcb98b0135f225a1c489 Mon Sep 17 00:00:00 2001 +From: Daniel Veillard +Date: Mon, 23 Feb 2015 11:29:20 +0800 +Subject: Cleanup conditional section error handling + +For https://bugzilla.gnome.org/show_bug.cgi?id=744980 + +The error handling of Conditional Section also need to be +straightened as the structure of the document can't be +guessed on a failure there and it's better to stop parsing +as further errors are likely to be irrelevant. + +Fixes CVE-2015-7942. +Upstream-Status: Backport + +Upstream patch: +https://git.gnome.org/browse/libxml2/commit/ +?id=9b8512337d14c8ddf662fcb98b0135f225a1c489 + +Signed-off-by: Sona Sarmadi +--- + parser.c | 6 ++++++ + 1 file changed, 6 insertions(+) + +diff --git a/parser.c b/parser.c +index bbe97eb..fe603ac 100644 +--- a/parser.c ++++ b/parser.c +@@ -6770,6 +6770,8 @@ xmlParseConditionalSections(xmlParserCtxtPtr ctxt) { + SKIP_BLANKS; + if (RAW != '[') { + xmlFatalErr(ctxt, XML_ERR_CONDSEC_INVALID, NULL); ++ xmlStopParser(ctxt); ++ return; + } else { + if (ctxt->input->id != id) { + xmlValidityError(ctxt, XML_ERR_ENTITY_BOUNDARY, +@@ -6830,6 +6832,8 @@ xmlParseConditionalSections(xmlParserCtxtPtr ctxt) { + SKIP_BLANKS; + if (RAW != '[') { + xmlFatalErr(ctxt, XML_ERR_CONDSEC_INVALID, NULL); ++ xmlStopParser(ctxt); ++ return; + } else { + if (ctxt->input->id != id) { + xmlValidityError(ctxt, XML_ERR_ENTITY_BOUNDARY, +@@ -6885,6 +6889,8 @@ xmlParseConditionalSections(xmlParserCtxtPtr ctxt) { + + } else { + xmlFatalErr(ctxt, XML_ERR_CONDSEC_INVALID_KEYWORD, NULL); ++ xmlStopParser(ctxt); ++ return; + } + + if (RAW == 0) +-- +cgit v0.11.2 + -- cgit v1.2.3-54-g00ecf