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[AutoPR- Security] Patch libssh for CVE-2025-8114 [MEDIUM] #108

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[AutoPR- Security] Patch libssh for CVE-2025-8114 [MEDIUM] #108

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46 changes: 46 additions & 0 deletions SPECS/libssh/CVE-2025-8114.patch
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Original file line number Diff line number Diff line change
@@ -0,0 +1,46 @@
From 441171bad96f5df4eb77d0759723972fb5413412 Mon Sep 17 00:00:00 2001
From: Andreas Schneider <[email protected]>
Date: Wed, 6 Aug 2025 15:17:59 +0200
Subject: [PATCH] CVE-2025-8114: Fix NULL pointer dereference after allocation
failure

Signed-off-by: Andreas Schneider <[email protected]>
Reviewed-by: Jakub Jelen <[email protected]>
Signed-off-by: Azure Linux Security Servicing Account <[email protected]>
Upstream-reference: https://git.libssh.org/projects/libssh.git/patch/?id=53ac23ded4cb2c5463f6c4cd1525331bd578812d
---
src/kex.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/src/kex.c b/src/kex.c
index ecfc012..e88908b 100644
--- a/src/kex.c
+++ b/src/kex.c
@@ -1391,6 +1391,8 @@ int ssh_make_sessionid(ssh_session session)
ssh_log_hexdump("hash buffer", ssh_buffer_get(buf), ssh_buffer_get_len(buf));
#endif

+ /* Set rc for the following switch statement in case we goto error. */
+ rc = SSH_ERROR;
switch (session->next_crypto->kex_type) {
case SSH_KEX_DH_GROUP1_SHA1:
case SSH_KEX_DH_GROUP14_SHA1:
@@ -1450,6 +1452,7 @@ int ssh_make_sessionid(ssh_session session)
session->next_crypto->secret_hash);
break;
}
+
/* During the first kex, secret hash and session ID are equal. However, after
* a key re-exchange, a new secret hash is calculated. This hash will not replace
* but complement existing session id.
@@ -1458,6 +1461,7 @@ int ssh_make_sessionid(ssh_session session)
session->next_crypto->session_id = malloc(session->next_crypto->digest_len);
if (session->next_crypto->session_id == NULL) {
ssh_set_error_oom(session);
+ rc = SSH_ERROR;
goto error;
}
memcpy(session->next_crypto->session_id, session->next_crypto->secret_hash,
--
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: Mariner
Name: libssh
Version: 0.10.6
Release: 3%{?dist}
Release: 4%{?dist}
Summary: A library implementing the SSH protocol
License: LGPLv2+
URL: http://www.libssh.org
Expand All @@ -17,6 +17,7 @@ Patch1: CVE-2025-5372.patch
Patch2: CVE-2025-5351.patch
Patch3: CVE-2025-5318.patch
Patch4: CVE-2025-4878.patch
Patch5: CVE-2025-8114.patch

BuildRequires: cmake
BuildRequires: gcc-c++
Expand Down Expand Up @@ -150,6 +151,9 @@ popd
%attr(0644,root,root) %config(noreplace) %{_sysconfdir}/libssh/libssh_server.config

%changelog
* Wed Nov 12 2025 Azure Linux Security Servicing Account <[email protected]> - 0.10.6-4
- Patch for CVE-2025-8114

* Fri Jul 25 2025 Jyoti Kanase <[email protected]> - 0.10.6-3
- Patch for CVE-2025-4878

Expand Down
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