unixodbc: Fix CVE-2024-1013

An out-of-bounds stack write flaw was found in unixODBC on 64-bit
architectures where the caller has 4 bytes and callee writes 8 bytes.
This issue may go unnoticed on little-endian architectures, while
big-endian architectures can be broken.

References:
https://nvd.nist.gov/vuln/detail/CVE-2024-1013

Signed-off-by: Soumya Sambu <soumya.sambu@windriver.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>

Author: SoumyaWind

meta-oe/recipes-support/unixodbc/files/CVE-2024-1013.patch

@@ -0,0 +1,53 @@
+From 45f501e1be2db6b017cc242c79bfb9de32b332a1 Mon Sep 17 00:00:00 2001
+From: Florian Weimer <fweimer@redhat.com>
+Date: Mon, 29 Jan 2024 08:27:29 +0100
+Subject: [PATCH] PostgreSQL driver: Fix incompatible pointer-to-integer types
+
+These result in out-of-bounds stack writes on 64-bit architectures
+(caller has 4 bytes, callee writes 8 bytes), and seem to have gone
+unnoticed on little-endian architectures (although big-endian
+architectures must be broken).
+
+This change is required to avoid a build failure with GCC 14.
+
+CVE: CVE-2024-1013
+
+Upstream-Status: Backport [https://github.com/lurcher/unixODBC/commit/45f501e1be2db6b017cc242c79bfb9de32b332a1]
+
+Signed-off-by: Soumya Sambu <soumya.sambu@windriver.com>
+---
+ Drivers/Postgre7.1/info.c | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/Drivers/Postgre7.1/info.c b/Drivers/Postgre7.1/info.c
+index 63ac91f..2216ecd 100755
+--- a/Drivers/Postgre7.1/info.c
++++ b/Drivers/Postgre7.1/info.c
+@@ -1779,14 +1779,14 @@ char *table_name;
+ char index_name[MAX_INFO_STRING];
+ short fields_vector[8];
+ char isunique[10], isclustered[10];
+-SDWORD index_name_len, fields_vector_len;
++SQLLEN index_name_len, fields_vector_len;
+ TupleNode *row;
+ int i;
+ HSTMT hcol_stmt;
+ StatementClass *col_stmt, *indx_stmt;
+ char column_name[MAX_INFO_STRING], relhasrules[MAX_INFO_STRING];
+ char **column_names = 0;
+-Int4 column_name_len;
++SQLLEN column_name_len;
+ int total_columns = 0;
+ char error = TRUE;
+ ConnInfo *ci;
+@@ -2136,7 +2136,7 @@ HSTMT htbl_stmt;
+ StatementClass *tbl_stmt;
+ char tables_query[STD_STATEMENT_LEN];
+ char attname[MAX_INFO_STRING];
+-SDWORD attname_len;
++SQLLEN attname_len;
+ char pktab[MAX_TABLE_LEN + 1];
+ Int2 result_cols;
+
+--
+2.40.0

meta-oe/recipes-support/unixodbc/unixodbc_2.3.9.bb

@@ -10,6 +10,7 @@ DEPENDS = "libtool readline"
 
 SRC_URI = "http://ftp.unixodbc.org/unixODBC-${PV}.tar.gz \
            file://do-not-use-libltdl-source-directory.patch \
+           file://CVE-2024-1013.patch \
 "
 SRC_URI[sha256sum] = "52833eac3d681c8b0c9a5a65f2ebd745b3a964f208fc748f977e44015a31b207"