diff mbox series

[meta-oe,wrynose,4/15] freerdp3: patch CVE-2026-55193

Message ID 20260909083140.2494932-4-ankur.tyagi85@gmail.com
State New
Headers show
Series [meta-oe,wrynose,1/15] freerdp3: patch CVE-2026-40254 | expand

Commit Message

Ankur Tyagi Sept. 9, 2026, 8:31 a.m. UTC 
From: Ankur Tyagi <ankur.tyagi85@gmail.com>

Details:
https://nvd.nist.gov/vuln/detail/cve-2026-55193

Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
---
 .../freerdp/freerdp3/CVE-2026-55193.patch     | 37 +++++++++++++++++++
 .../freerdp/freerdp3_3.24.2.bb                |  1 +
 2 files changed, 38 insertions(+)
 create mode 100644 meta-oe/recipes-support/freerdp/freerdp3/CVE-2026-55193.patch
diff mbox series

Patch

diff --git a/meta-oe/recipes-support/freerdp/freerdp3/CVE-2026-55193.patch b/meta-oe/recipes-support/freerdp/freerdp3/CVE-2026-55193.patch
new file mode 100644
index 0000000000..5fbd142e49
--- /dev/null
+++ b/meta-oe/recipes-support/freerdp/freerdp3/CVE-2026-55193.patch
@@ -0,0 +1,37 @@ 
+From b0b560b3c89e46107092cc8d1abe61ae4c4e7c4d Mon Sep 17 00:00:00 2001
+From: Armin Novak <armin.novak@thincast.com>
+Date: Thu, 11 Jun 2026 08:31:09 +0200
+Subject: [PATCH] [core,gateway] rpc header max fragment size checks
+
+(cherry picked from commit a863ef1cf1cdabf9019280e5658f806e73bb50e8)
+
+CVE: CVE-2026-55193
+Upstream-Status: Backport [https://github.com/FreeRDP/FreeRDP/commit/a863ef1cf1cdabf9019280e5658f806e73bb50e8]
+
+Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
+---
+ libfreerdp/core/gateway/rpc_bind.c | 11 +++++++++++
+ 1 file changed, 11 insertions(+)
+
+diff --git a/libfreerdp/core/gateway/rpc_bind.c b/libfreerdp/core/gateway/rpc_bind.c
+index cc670d14f..3a055eb50 100644
+--- a/libfreerdp/core/gateway/rpc_bind.c
++++ b/libfreerdp/core/gateway/rpc_bind.c
+@@ -342,6 +342,17 @@ BOOL rpc_recv_bind_ack_pdu(rdpRpc* rpc, wStream* s)
+ 	WLog_DBG(TAG, header.common.ptype == PTYPE_BIND_ACK ? "Receiving BindAck PDU"
+ 	                                                    : "Receiving AlterContextResp PDU");
+ 
++	const UINT16 MAX_VALID_FRAG = 0x0FF8;
++	if ((header.bind_ack.max_xmit_frag > MAX_VALID_FRAG) ||
++	    (header.bind_ack.max_recv_frag > MAX_VALID_FRAG))
++	{
++		WLog_ERR(TAG,
++		         "bind_ack: invalid fragment size: max_xmit_frag=%" PRIu16
++		         ", max_recv_frag=%" PRIu16 ", maximum=%" PRIu16,
++		         header.bind_ack.max_xmit_frag, header.bind_ack.max_recv_frag, MAX_VALID_FRAG);
++		goto fail;
++	}
++
+ 	rpc->max_recv_frag = header.bind_ack.max_xmit_frag;
+ 	rpc->max_xmit_frag = header.bind_ack.max_recv_frag;
+ 
diff --git a/meta-oe/recipes-support/freerdp/freerdp3_3.24.2.bb b/meta-oe/recipes-support/freerdp/freerdp3_3.24.2.bb
index 978f950d8d..4248225379 100644
--- a/meta-oe/recipes-support/freerdp/freerdp3_3.24.2.bb
+++ b/meta-oe/recipes-support/freerdp/freerdp3_3.24.2.bb
@@ -15,6 +15,7 @@  SRC_URI = "git://github.com/FreeRDP/FreeRDP.git;nobranch=1;protocol=https;tag=${
            file://CVE-2026-40254-2.patch \
            file://CVE-2026-55191.patch \
            file://CVE-2026-55192.patch \
+           file://CVE-2026-55193.patch \
 "