diff mbox series

[kirkstone,2/6] ofono: fix CVE-2024-7543

Message ID 20250114080322.3571990-2-yogita.urade@windriver.com
State New
Headers show
Series [kirkstone,1/6] ofono: fix CVE-2024-7539 | expand

Commit Message

yurade Jan. 14, 2025, 8:03 a.m. UTC 
From: Yogita Urade <yogita.urade@windriver.com>

oFono SimToolKit Heap-based Buffer Overflow Privilege Escalation
Vulnerability. This vulnerability allows local attackers to execute
arbitrary code on affected installations of oFono. An attacker must
first obtain the ability to execute code on the target modem in
order to exploit this vulnerability.

The specific flaw exists within the parsing of STK command PDUs.
The issue results from the lack of proper validation of the length
of user-supplied data prior to copying it to a heap-based buffer.
An attacker can leverage this vulnerability to execute code in the
context of the service account. Was ZDI-CAN-23456.

Reference:
https://security-tracker.debian.org/tracker/CVE-2024-7543

Upstream patch:
https://git.kernel.org/pub/scm/network/ofono/ofono.git/commit/?id=90e60ada012de42964214d8155260f5749d0dcc7

Signed-off-by: Yogita Urade <yogita.urade@windriver.com>
---
 .../ofono/ofono/CVE-2024-7543.patch           | 30 +++++++++++++++++++
 meta/recipes-connectivity/ofono/ofono_1.34.bb |  1 +
 2 files changed, 31 insertions(+)
 create mode 100644 meta/recipes-connectivity/ofono/ofono/CVE-2024-7543.patch
diff mbox series

Patch

diff --git a/meta/recipes-connectivity/ofono/ofono/CVE-2024-7543.patch b/meta/recipes-connectivity/ofono/ofono/CVE-2024-7543.patch
new file mode 100644
index 0000000000..d71d00b832
--- /dev/null
+++ b/meta/recipes-connectivity/ofono/ofono/CVE-2024-7543.patch
@@ -0,0 +1,30 @@ 
+From 90e60ada012de42964214d8155260f5749d0dcc7 Mon Sep 17 00:00:00 2001
+From: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
+Date: Tue, 3 Dec 2024 21:43:50 +0200
+Subject: [PATCH] stkutil: Fix CVE-2024-7543
+
+CVE: CVE-2024-7543
+Upstream-Status: Backport [https://git.kernel.org/pub/scm/network/ofono/ofono.git/commit/?id=90e60ada012de42964214d8155260f5749d0dcc7]
+
+Signed-off-by: Yogita Urade <yogita.urade@windriver.com>
+---
+ src/stkutil.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/src/stkutil.c b/src/stkutil.c
+index 4f31af4..fdd11ad 100644
+--- a/src/stkutil.c
++++ b/src/stkutil.c
+@@ -1876,6 +1876,10 @@ static bool parse_dataobj_mms_reference(struct comprehension_tlv_iter *iter,
+
+	data = comprehension_tlv_iter_get_data(iter);
+	mr->len = len;
++
++	if (len > sizeof(mr->ref))
++		return false;
++
+	memcpy(mr->ref, data, len);
+
+	return true;
+--
+2.40.0
diff --git a/meta/recipes-connectivity/ofono/ofono_1.34.bb b/meta/recipes-connectivity/ofono/ofono_1.34.bb
index a7c3a9085d..731b186b12 100644
--- a/meta/recipes-connectivity/ofono/ofono_1.34.bb
+++ b/meta/recipes-connectivity/ofono/ofono_1.34.bb
@@ -19,6 +19,7 @@  SRC_URI = "\
     file://CVE-2023-2794-0003.patch \
     file://CVE-2023-2794-0004.patch \
     file://CVE-2024-7539.patch \
+    file://CVE-2024-7543.patch \
 "
 SRC_URI[sha256sum] = "c0b96d3013447ec2bcb74579bef90e4e59c68dbfa4b9c6fbce5d12401a43aac7"