1 files changed, 28 insertions, 0 deletions

diff --git a/meta/recipes-support/sqlite/sqlite3/CVE-2019-9936.patch b/meta/recipes-support/sqlite/sqlite3/CVE-2019-9936.patch
new file mode 100644
index 0000000000..1b907b9d4d
--- /dev/null
+++ b/meta/recipes-support/sqlite/sqlite3/CVE-2019-9936.patch
@@ -0,0 +1,28 @@
+Running fts5 prefix queries inside a transaction could trigger a heap-based
+buffer over-read in fts5HashEntrySort in sqlite3.c, which may lead to an
+information leak.
+
+CVE: CVE-2019-9936
+Upstream-Status: Backport [https://sqlite.org/src/vpatch?from=45c73deb440496e8&to=b3fa58dd7403dbd4]
+Signed-off-by: Ross Burton <ross.burton@intel.com>
+---
+ sqlite3.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/sqlite3.c b/sqlite3.c
+index 4729f45..65527d8 100644
+--- a/sqlite3.c
++++ b/sqlite3.c
+@@ -207759,7 +207759,9 @@ static int fts5HashEntrySort(
+   for(iSlot=0; iSlot<pHash->nSlot; iSlot++){
+     Fts5HashEntry *pIter;
+     for(pIter=pHash->aSlot[iSlot]; pIter; pIter=pIter->pHashNext){
+-      if( pTerm==0 || 0==memcmp(fts5EntryKey(pIter), pTerm, nTerm) ){
++      if( pTerm==0
++       || (pIter->nKey+1>=nTerm && 0==memcmp(fts5EntryKey(pIter), pTerm, nTerm))
++      ){
+         Fts5HashEntry *pEntry = pIter;
+         pEntry->pScanNext = 0;
+         for(i=0; ap[i]; i++){
+-- 
+2.20.1