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xrdp: patch CVE-2022-23493

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Details: https://nvd.nist.gov/vuln/detail/CVE-2022-23493

Pick the patch that mentions this vulnerability explicitly.

Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>
Signed-off-by: Anuj Mittal <anuj.mittal@oss.qualcomm.com>
(cherry picked from commit f81041bb39)
Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>
Signed-off-by: Anuj Mittal <anuj.mittal@oss.qualcomm.com>
This commit is contained in:
Gyorgy Sarvari
2026-01-24 07:30:05 +01:00
committed by Anuj Mittal
parent 57d69cc4d4
commit 56c1ffb74f
2 changed files with 34 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
meta-oe/recipes-support/xrdp/xrdp/CVE-2022-23493.patch
+33
View File
@@ -0,0 +1,33 @@
From 030db5524be7616967ae9e7d26b3d4477cf6082d Mon Sep 17 00:00:00 2001
From: matt335672 <30179339+matt335672@users.noreply.github.com>
Date: Wed, 7 Dec 2022 10:49:06 +0000
Subject: [PATCH] CVE-2022-23493
Check chansrv channel ID on a channel close
Prevent OOB read if an invalid channel ID is sent.
CVE: CVE-2022-23493
Upstream-Status: Backport [https://github.com/neutrinolabs/xrdp/commit/030db5524be7616967ae9e7d26b3d4477cf6082d]
Signed-off-by: Gyorgy Sarvari <skandigraun@gmail.com>
---
xrdp/xrdp_mm.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/xrdp/xrdp_mm.c b/xrdp/xrdp_mm.c
index 74b0516afa..068424885e 100644
--- a/xrdp/xrdp_mm.c
+++ b/xrdp/xrdp_mm.c
@@ -1435,6 +1435,12 @@ xrdp_mm_trans_process_drdynvc_channel_close(struct xrdp_mm *self,
return 1;
}
in_uint32_le(s, chansrv_chan_id);
+ if (chansrv_chan_id < 0 || chansrv_chan_id > 255)
+ {
+ LOG(LOG_LEVEL_ERROR, "Attempting to close invalid chansrv channel %d",
+ chansrv_chan_id);
+ return 1;
+ }
chan_id = self->cs2xr_cid_map[chansrv_chan_id];
/* close dynamic channel */
error = libxrdp_drdynvc_close(self->wm->session, chan_id);
meta-oe/recipes-support/xrdp/xrdp_0.9.20.bb
+1
View File
@@ -26,6 +26,7 @@ SRC_URI = "https://github.com/neutrinolabs/${BPN}/releases/download/v${PV}/${BPN
file://CVE-2022-23482.patch \
file://CVE-2022-23483.patch \
file://CVE-2022-23484.patch \
file://CVE-2022-23493.patch \
"
SRC_URI[sha256sum] = "db693401da95b71b4d4e4c99aeb569a546dbdbde343f6d3302b0c47653277abb"