diff options
Diffstat (limited to 'dev-libs/libxml2/files/libxml2-2.9.8-CVE-2018-14404.patch')
-rw-r--r-- | dev-libs/libxml2/files/libxml2-2.9.8-CVE-2018-14404.patch | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/dev-libs/libxml2/files/libxml2-2.9.8-CVE-2018-14404.patch b/dev-libs/libxml2/files/libxml2-2.9.8-CVE-2018-14404.patch deleted file mode 100644 index 59bfc0fa9b88..000000000000 --- a/dev-libs/libxml2/files/libxml2-2.9.8-CVE-2018-14404.patch +++ /dev/null @@ -1,54 +0,0 @@ -From a436374994c47b12d5de1b8b1d191a098fa23594 Mon Sep 17 00:00:00 2001 -From: Nick Wellnhofer <wellnhofer@aevum.de> -Date: Mon, 30 Jul 2018 12:54:38 +0200 -Subject: [PATCH] Fix nullptr deref with XPath logic ops - -If the XPath stack is corrupted, for example by a misbehaving extension -function, the "and" and "or" XPath operators could dereference NULL -pointers. Check that the XPath stack isn't empty and optimize the -logic operators slightly. - -Closes: https://gitlab.gnome.org/GNOME/libxml2/issues/5 - -Also see -https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=901817 -https://bugzilla.redhat.com/show_bug.cgi?id=1595985 - -This is CVE-2018-14404. - -Thanks to Guy Inbar for the report. ---- - xpath.c | 10 ++++------ - 1 file changed, 4 insertions(+), 6 deletions(-) - -diff --git a/xpath.c b/xpath.c -index 3fae0bf4e0a0..5e3bb9ff6401 100644 ---- a/xpath.c -+++ b/xpath.c -@@ -13234,9 +13234,8 @@ xmlXPathCompOpEval(xmlXPathParserContextPtr ctxt, xmlXPathStepOpPtr op) - return(0); - } - xmlXPathBooleanFunction(ctxt, 1); -- arg1 = valuePop(ctxt); -- arg1->boolval &= arg2->boolval; -- valuePush(ctxt, arg1); -+ if (ctxt->value != NULL) -+ ctxt->value->boolval &= arg2->boolval; - xmlXPathReleaseObject(ctxt->context, arg2); - return (total); - case XPATH_OP_OR: -@@ -13252,9 +13251,8 @@ xmlXPathCompOpEval(xmlXPathParserContextPtr ctxt, xmlXPathStepOpPtr op) - return(0); - } - xmlXPathBooleanFunction(ctxt, 1); -- arg1 = valuePop(ctxt); -- arg1->boolval |= arg2->boolval; -- valuePush(ctxt, arg1); -+ if (ctxt->value != NULL) -+ ctxt->value->boolval |= arg2->boolval; - xmlXPathReleaseObject(ctxt->context, arg2); - return (total); - case XPATH_OP_EQUAL: --- -2.19.1 - |