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xrdp: patch CVE-2022-23481

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Details: https://nvd.nist.gov/vuln/detail/CVE-2022-23481

Pick the patch that mentions this vulnerability explicitly.

Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>
This commit is contained in:
Gyorgy Sarvari
2025-12-05 18:11:31 +01:00
parent 07291c5d65
commit e0e34a0615
2 changed files with 47 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
meta-oe/recipes-support/xrdp/xrdp/CVE-2022-23481.patch
+46
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@@ -0,0 +1,46 @@
From c77e974080da8267d902f99ca5ab7d22ea02d98c Mon Sep 17 00:00:00 2001
From: matt335672 <30179339+matt335672@users.noreply.github.com>
Date: Wed, 7 Dec 2022 10:40:25 +0000
Subject: [PATCH] CVE-2022-23481
Add length checks to client confirm active PDU parsing
CVE: CVE-2022-23481
Upstream-Status: Backport [https://github.com/neutrinolabs/xrdp/commit/c77e974080da8267d902f99ca5ab7d22ea02d98c]
Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>
---
libxrdp/xrdp_caps.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/libxrdp/xrdp_caps.c b/libxrdp/xrdp_caps.c
index 5c5e74a579..ac21cc0a18 100644
--- a/libxrdp/xrdp_caps.c
+++ b/libxrdp/xrdp_caps.c
@@ -667,13 +667,27 @@ xrdp_caps_process_confirm_active(struct xrdp_rdp *self, struct stream *s)
int len;
char *p;
+ if (!s_check_rem_and_log(s, 10,
+ "Parsing [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU"
+ " - header"))
+ {
+ return 1;
+ }
in_uint8s(s, 4); /* rdp_shareid */
in_uint8s(s, 2); /* userid */
in_uint16_le(s, source_len); /* sizeof RDP_SOURCE */
in_uint16_le(s, cap_len);
+
+ if (!s_check_rem_and_log(s, source_len + 2 + 2,
+ "Parsing [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU"
+ " - header2"))
+ {
+ return 1;
+ }
in_uint8s(s, source_len);
in_uint16_le(s, num_caps);
in_uint8s(s, 2); /* pad */
+
LOG_DEVEL(LOG_LEVEL_TRACE, "Received [MS-RDPBCGR] TS_CONFIRM_ACTIVE_PDU "
"shareID (ignored), originatorID (ignored), lengthSourceDescriptor %d, "
"lengthCombinedCapabilities %d, sourceDescriptor (ignored), "
meta-oe/recipes-support/xrdp/xrdp_0.9.18.1.bb
+1
View File
@@ -21,6 +21,7 @@ SRC_URI = "https://github.com/neutrinolabs/${BPN}/releases/download/v${PV}/${BPN
file://CVE-2022-23479.patch \
file://CVE-2022-23480-1.patch \
file://CVE-2022-23480-2.patch \
file://CVE-2022-23481.patch \
"
SRC_URI[sha256sum] = "f76aa16034689bb8997e56fd554db29ba57caa1bab228a6eda28be4389dedeb9"