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freerdp3: fix CVE-2026-33952

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Details: https://nvd.nist.gov/vuln/detail/CVE-2026-33952

Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
Signed-off-by: Anuj Mittal <anuj.mittal@oss.qualcomm.com>
This commit is contained in:
Ankur Tyagi
2026-04-09 19:09:00 +12:00
committed by Anuj Mittal
parent 421f659e20
commit 21af1f7e13
2 changed files with 39 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
meta-oe/recipes-support/freerdp/freerdp3/CVE-2026-33952.patch
+38
View File
@@ -0,0 +1,38 @@
From 30e05bdaf4096decf4ce0b1c448cd03c6786323b Mon Sep 17 00:00:00 2001
From: Armin Novak <armin.novak@thincast.com>
Date: Wed, 25 Mar 2026 09:04:43 +0100
Subject: [PATCH] [core,gateway] Check rpcconn_common_hdr_t::auth_length is
valid
Do sanity checks for rpcconn_common_hdr_t::auth_length read from
network, abort if the value is out of range.
(cherry picked from commit 4ac0b6467d371a1ad47c1f751c5b305e4c068adb)
CVE: CVE-2026-33952
Upstream-Status: Backport [https://github.com/FreeRDP/FreeRDP/commit/4ac0b6467d371a1ad47c1f751c5b305e4c068adb]
Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
---
libfreerdp/core/gateway/rts.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/libfreerdp/core/gateway/rts.c b/libfreerdp/core/gateway/rts.c
index 2ba757815..9702582da 100644
--- a/libfreerdp/core/gateway/rts.c
+++ b/libfreerdp/core/gateway/rts.c
@@ -253,6 +253,15 @@ BOOL rts_read_common_pdu_header(wStream* s, rpcconn_common_hdr_t* header, BOOL i
header->frag_length, sizeof(rpcconn_common_hdr_t));
return FALSE;
}
+ if (header->auth_length > header->frag_length - 8ull)
+ {
+ if (!ignoreErrors)
+ WLog_WARN(TAG,
+ "Invalid header->auth_length(%" PRIu16 ") > header->frag_length(%" PRIu16
+ ") - 8ull",
+ header->frag_length, header->auth_length);
+ return FALSE;
+ }
if (!ignoreErrors)
{
meta-oe/recipes-support/freerdp/freerdp3_3.4.0.bb
+1
View File
@@ -21,6 +21,7 @@ SRC_URI = "git://github.com/FreeRDP/FreeRDP.git;branch=master;protocol=https \
file://CVE-2024-32662.patch \
file://CVE-2025-4478.patch \
file://CVE-2026-25941.patch \
file://CVE-2026-33952.patch \
"
S = "${WORKDIR}/git"