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freerdp3: patch CVE-2026-64620

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Backport commit matching GitHub advisory[1]

Details:
https://nvd.nist.gov/vuln/detail/cve-2026-64620

[1]https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pjqx-v446-x7fc

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
2026-09-15 10:13:47 +05:30
committed by Anuj Mittal
parent a8c04cf8d2
commit 4964784627
2 changed files with 38 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
meta-oe/recipes-support/freerdp/freerdp3/CVE-2026-64620.patch
+37
View File
@@ -0,0 +1,37 @@
From c04d10f9586ce92d7a7a3307744e16d554e20cfd Mon Sep 17 00:00:00 2001
From: Armin Novak <armin.novak@thincast.com>
Date: Thu, 2 Jul 2026 08:02:26 +0200
Subject: [PATCH] [crypto] fix out buffer check
(cherry picked from commit 27014741a8c22a34d3040c559c82f4ed82841bef)
CVE: CVE-2026-64620
Upstream-Status: Backport [https://github.com/FreeRDP/FreeRDP/commit/27014741a8c22a34d3040c559c82f4ed82841bef]
Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
---
libfreerdp/crypto/crypto.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/libfreerdp/crypto/crypto.c b/libfreerdp/crypto/crypto.c
index 3d210f2d9..60f7c6cee 100644
--- a/libfreerdp/crypto/crypto.c
+++ b/libfreerdp/crypto/crypto.c
@@ -103,11 +103,14 @@ static SSIZE_T crypto_rsa_common(const BYTE* input, size_t length, UINT32 key_le
goto fail;
if (BN_mod_exp(y, x, exp, mod, ctx) != 1)
goto fail;
- output_length = BN_bn2bin(y, output);
+ {
+ const int len = BN_num_bytes(y);
+ if ((len < 0) || (WINPR_ASSERTING_INT_CAST(size_t, len) > out_length))
+ goto fail;
+ output_length = BN_bn2bin(y, output);
+ }
if (output_length < 0)
goto fail;
- if (WINPR_ASSERTING_INT_CAST(size_t, output_length) > out_length)
- goto fail;
crypto_reverse(output, WINPR_ASSERTING_INT_CAST(size_t, output_length));
if ((size_t)output_length < key_length)
meta-oe/recipes-support/freerdp/freerdp3_3.24.2.bb
+1
View File
@@ -21,6 +21,7 @@ SRC_URI = "git://github.com/FreeRDP/FreeRDP.git;nobranch=1;protocol=https;tag=${
file://CVE-2026-55648.patch \
file://CVE-2026-63633.patch \
file://CVE-2026-63652.patch \
file://CVE-2026-64620.patch \
"