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[AutoPR- Security] Patch libssh for CVE-2026-3731 [MEDIUM] #16159

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[AutoPR- Security] Patch libssh for CVE-2026-3731 [MEDIUM] #16159

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42 changes: 42 additions & 0 deletions SPECS/libssh/CVE-2026-3731.patch
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Original file line number Diff line number Diff line change
@@ -0,0 +1,42 @@
From 7e85a3106d43699b1662d46480b377bfc55fcbbf Mon Sep 17 00:00:00 2001
From: Jakub Jelen <jjelen@redhat.com>
Date: Thu, 11 Dec 2025 13:22:44 +0100
Subject: [PATCH] sftp: Fix out-of-bound read from sftp extensions
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Pavol Žáčik <pzacik@redhat.com>
(cherry picked from commit 855a0853ad3abd4a6cd85ce06fce6d8d4c7a0b60)
Signed-off-by: Azure Linux Security Servicing Account <azurelinux-security@microsoft.com>
Upstream-reference: https://git.libssh.org/projects/libssh.git/patch/?id=f80670a7aba86cbb442c9b115c9eaf4ca04601b8
---
src/sftp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/sftp.c b/src/sftp.c
index e01012a..e55f5e1 100644
--- a/src/sftp.c
+++ b/src/sftp.c
@@ -768,7 +768,7 @@ const char *sftp_extensions_get_name(sftp_session sftp, unsigned int idx) {
return NULL;
}

- if (idx > sftp->ext->count) {
+ if (idx >= sftp->ext->count) {
ssh_set_error_invalid(sftp->session);
return NULL;
}
@@ -784,7 +784,7 @@ const char *sftp_extensions_get_data(sftp_session sftp, unsigned int idx) {
return NULL;
}

- if (idx > sftp->ext->count) {
+ if (idx >= sftp->ext->count) {
ssh_set_error_invalid(sftp->session);
return NULL;
}
--
2.45.4

6 changes: 5 additions & 1 deletion SPECS/libssh/libssh.spec
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Expand Up @@ -2,7 +2,7 @@ Vendor: Microsoft Corporation
Distribution: Azure Linux
Name: libssh
Version: 0.10.6
Release: 5%{?dist}
Release: 6%{?dist}
Summary: A library implementing the SSH protocol
License: LGPLv2+
URL: http://www.libssh.org
Expand All @@ -19,6 +19,7 @@ Patch3: CVE-2025-5318.patch
Patch4: CVE-2025-4878.patch
Patch5: CVE-2025-8277.patch
Patch6: CVE-2025-8114.patch
Patch7: CVE-2026-3731.patch

BuildRequires: cmake
BuildRequires: gcc-c++
Expand Down Expand Up @@ -152,6 +153,9 @@ popd
%attr(0644,root,root) %config(noreplace) %{_sysconfdir}/libssh/libssh_server.config

%changelog
* Wed Mar 11 2026 Azure Linux Security Servicing Account <azurelinux-security@microsoft.com> - 0.10.6-6
- Patch for CVE-2026-3731

* Wed Nov 12 2025 Azure Linux Security Servicing Account <azurelinux-security@microsoft.com> - 0.10.6-5
- Patch for CVE-2025-8114

Expand Down
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