diff mbox series

[kirkstone,6/6] ofono: fix CVE-2024-7547

Message ID 20250114080322.3571990-6-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 SMS Decoder Stack-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 SMS PDUs. The issue
results from the lack of proper validation of the length of user-
supplied data prior to copying it to a stack-based buffer. An
attacker can leverage this vulnerability to execute code in the
context of the service account. Was ZDI-CAN-23460.

Reference:
https://security-tracker.debian.org/tracker/CVE-2024-7547

Upstream patch:
https://git.kernel.org/pub/scm/network/ofono/ofono.git/commit/?id=305df050d02aea8532f7625d6642685aa530f9b0

Signed-off-by: Yogita Urade <yogita.urade@windriver.com>
---
 .../ofono/ofono/CVE-2024-7547.patch           | 29 +++++++++++++++++++
 meta/recipes-connectivity/ofono/ofono_1.34.bb |  1 +
 2 files changed, 30 insertions(+)
 create mode 100644 meta/recipes-connectivity/ofono/ofono/CVE-2024-7547.patch
diff mbox series

Patch

diff --git a/meta/recipes-connectivity/ofono/ofono/CVE-2024-7547.patch b/meta/recipes-connectivity/ofono/ofono/CVE-2024-7547.patch
new file mode 100644
index 0000000000..b6b08127a8
--- /dev/null
+++ b/meta/recipes-connectivity/ofono/ofono/CVE-2024-7547.patch
@@ -0,0 +1,29 @@ 
+From 305df050d02aea8532f7625d6642685aa530f9b0 Mon Sep 17 00:00:00 2001
+From: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
+Date: Tue, 3 Dec 2024 21:43:51 +0200
+Subject: [PATCH] Fix CVE-2024-7547
+
+CVE: CVE-2024-7547
+Upstream-Status: Backport [https://git.kernel.org/pub/scm/network/ofono/ofono.git/commit/?id=305df050d02aea8532f7625d6642685aa530f9b0]
+
+Signed-off-by: Yogita Urade <yogita.urade@windriver.com>
+---
+ src/smsutil.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/src/smsutil.c b/src/smsutil.c
+index e073a06..f8ff428 100644
+--- a/src/smsutil.c
++++ b/src/smsutil.c
+@@ -1475,6 +1475,9 @@ static gboolean decode_command(const unsigned char *pdu, int len,
+	if ((len - offset) < out->command.cdl)
+		return FALSE;
+
++	if (out->command.cdl > sizeof(out->command.cd))
++		return FALSE;
++
+	memcpy(out->command.cd, pdu + offset, out->command.cdl);
+
+	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 0c1e0ea6f8..8205ea683d 100644
--- a/meta/recipes-connectivity/ofono/ofono_1.34.bb
+++ b/meta/recipes-connectivity/ofono/ofono_1.34.bb
@@ -23,6 +23,7 @@  SRC_URI = "\
     file://CVE-2024-7544.patch \
     file://CVE-2024-7545.patch \
     file://CVE-2024-7546.patch \
+    file://CVE-2024-7547.patch \
 "
 SRC_URI[sha256sum] = "c0b96d3013447ec2bcb74579bef90e4e59c68dbfa4b9c6fbce5d12401a43aac7"