From f80670a7aba86cbb442c9b115c9eaf4ca04601b8 Mon Sep 17 00:00:00 2001 From: Jakub Jelen 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 Reviewed-by: Pavol Žá�ik (cherry picked from commit 855a0853ad3abd4a6cd85ce06fce6d8d4c7a0b60) Upstream-Status: Backport [https://git.libssh.org/projects/libssh.git/commit/?id=f80670a7aba86cbb442c9b115c9eaf4ca04601b8] CVE: CVE-2026-3731 Signed-off-by: Vijay Anusuri --- src/sftp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/sftp.c b/src/sftp.c index 43eb1ad6..be473793 100644 --- a/src/sftp.c +++ b/src/sftp.c @@ -686,7 +686,7 @@ 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; } @@ -702,7 +702,7 @@ 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; } -- 2.25.1