sqlite3: backport patch for CVE-2023-7104

Backport https://sqlite.org/src/info/0e4e7a05c4204b47

(From OE-Core rev: 31fb83ac3dcd2dd55b184de22a296ab4dc150d2e)

Signed-off-by: Peter Marko <peter.marko@siemens.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

2 files changed, 45 insertions, 0 deletions

diff --git a/meta/recipes-support/sqlite/files/CVE-2023-7104.patch b/meta/recipes-support/sqlite/files/CVE-2023-7104.patch
new file mode 100644
index 0000000000..25c6ba017c
--- /dev/null
+++ b/meta/recipes-support/sqlite/files/CVE-2023-7104.patch
@@ -0,0 +1,44 @@
+From 09f1652f36c5c4e8a6a640ce887f9ea0f48a7958 Mon Sep 17 00:00:00 2001
+From: dan <Dan Kennedy>
+Date: Thu, 7 Sep 2023 13:53:09 +0000
+Subject: [PATCH] Fix a buffer overread in the sessions extension that could
+ occur when processing a corrupt changeset.
+
+Upstream-Status: Backport [https://sqlite.org/src/info/0e4e7a05c4204b47]
+CVE: CVE-2022-46908
+Signed-off-by: Peter Marko <peter.marko@siemens.com>
+---
+ sqlite3.c | 18 +++++++++++-------
+ 1 file changed, 11 insertions(+), 7 deletions(-)
+
+diff --git a/ext/session/sqlite3session.c b/ext/session/sqlite3session.c
+index 9f862f2465..0491549231 100644
+--- a/sqlite3.c
++++ b/sqlite3.c
+@@ -213482,15 +213482,19 @@ static int sessionReadRecord(
+         }
+       }
+       if( eType==SQLITE_INTEGER || eType==SQLITE_FLOAT ){
+-        sqlite3_int64 v = sessionGetI64(aVal);
+-        if( eType==SQLITE_INTEGER ){
+-          sqlite3VdbeMemSetInt64(apOut[i], v);
++        if( (pIn->nData-pIn->iNext)<8 ){
++          rc = SQLITE_CORRUPT_BKPT;
+         }else{
+-          double d;
+-          memcpy(&d, &v, 8);
+-          sqlite3VdbeMemSetDouble(apOut[i], d);
++          sqlite3_int64 v = sessionGetI64(aVal);
++          if( eType==SQLITE_INTEGER ){
++            sqlite3VdbeMemSetInt64(apOut[i], v);
++          }else{
++            double d;
++            memcpy(&d, &v, 8);
++            sqlite3VdbeMemSetDouble(apOut[i], d);
++          }
++          pIn->iNext += 8;
+         }
+-        pIn->iNext += 8;
+       }
+     }
+   }
diff --git a/meta/recipes-support/sqlite/sqlite3_3.38.5.bb b/meta/recipes-support/sqlite/sqlite3_3.38.5.bb
index 55cc514412..cece207eae 100644
--- a/meta/recipes-support/sqlite/sqlite3_3.38.5.bb
+++ b/meta/recipes-support/sqlite/sqlite3_3.38.5.bb
@@ -7,6 +7,7 @@ SRC_URI = "http://www.sqlite.org/2022/sqlite-autoconf-${SQLITE_PV}.tar.gz \
            file://0001-sqlite-Increased-the-size-of-loop-variables-in-the-printf-implementation.patch \
            file://CVE-2022-46908.patch \
            file://CVE-2023-36191.patch \
+           file://CVE-2023-7104.patch \
 "
 SRC_URI[sha256sum] = "5af07de982ba658fd91a03170c945f99c971f6955bc79df3266544373e39869c"