import UBI openssh-8.0p1-26.el8_10

SOURCES/openssh-8.0p1-CVE-2025-26465.patch

@@ -0,0 +1,57 @@
+diff --git a/openssh-8.0p1/krl.c b/openssh-8.0p1/krl.c
+index 8e2d5d5..e5b046d 100644
+--- a/openssh-8.0p1/krl.c
++++ b/openssh-8.0p1/krl.c
+@@ -676,6 +676,7 @@ revoked_certs_generate(struct revoked_certs *rc, struct sshbuf *buf)
+ 			break;
+ 		case KRL_SECTION_CERT_SERIAL_BITMAP:
+ 			if (rs->lo - bitmap_start > INT_MAX) {
++				r = SSH_ERR_INVALID_FORMAT;
+ 				error("%s: insane bitmap gap", __func__);
+ 				goto out;
+ 			}
+@@ -1011,6 +1012,7 @@ ssh_krl_from_blob(struct sshbuf *buf, struct ssh_krl **krlp,
+ 		goto out;
+ 
+ 	if ((krl = ssh_krl_init()) == NULL) {
++		r = SSH_ERR_ALLOC_FAIL;
+ 		error("%s: alloc failed", __func__);
+ 		goto out;
+ 	}
+diff --git a/openssh-8.0p1/sshconnect2.c b/openssh-8.0p1/sshconnect2.c
+index ce855eb..9650b24 100644
+--- a/openssh-8.0p1/sshconnect2.c
++++ b/openssh-8.0p1/sshconnect2.c
+@@ -95,7 +95,7 @@ struct sockaddr *xxx_hostaddr;
+ static int
+ verify_host_key_callback(struct sshkey *hostkey, struct ssh *ssh)
+ {
+-	if (verify_host_key(xxx_host, xxx_hostaddr, hostkey) == -1)
++	if (verify_host_key(xxx_host, xxx_hostaddr, hostkey) != 0)
+ 		fatal("Host key verification failed.");
+ 	return 0;
+ }
+@@ -767,6 +767,7 @@ input_userauth_pk_ok(int type, u_int32_t seq, struct ssh *ssh)
+ 
+ 	if ((pktype = sshkey_type_from_name(pkalg)) == KEY_UNSPEC) {
+ 		debug("%s: server sent unknown pkalg %s", __func__, pkalg);
++		r = SSH_ERR_INVALID_FORMAT;
+ 		goto done;
+ 	}
+ 	if ((r = sshkey_from_blob(pkblob, blen, &key)) != 0) {
+@@ -777,6 +778,7 @@ input_userauth_pk_ok(int type, u_int32_t seq, struct ssh *ssh)
+ 		error("input_userauth_pk_ok: type mismatch "
+ 		    "for decoded key (received %d, expected %d)",
+ 		    key->type, pktype);
++		r = SSH_ERR_INVALID_FORMAT;
+ 		goto done;
+ 	}
+ 
+@@ -796,6 +798,7 @@ input_userauth_pk_ok(int type, u_int32_t seq, struct ssh *ssh)
+ 		    SSH_FP_DEFAULT);
+ 		error("%s: server replied with unknown key: %s %s", __func__,
+ 		    sshkey_type(key), fp == NULL ? "<ERROR>" : fp);
++		r = SSH_ERR_INVALID_FORMAT;
+ 		goto done;
+ 	}
+ 	ident = format_identity(id);

SOURCES/openssh-8.0p1-upstream-ignore-SIGPIPE.patch

@@ -0,0 +1,38 @@
+From d33ff14309e33aa79fdf95e1bc4facafa80b90a9 Mon Sep 17 00:00:00 2001
+From: Stepan Broz <sbroz@redhat.com>
+Date: Tue, 25 Jun 2024 17:38:22 +0200
+Subject: [PATCH] upstream: ignore SIGPIPE earlier in main(), specifically
+ before
+
+muxclient() which performs operations that could cause one; Reported by Noam
+Lewis via bz3454, ok dtucker@
+
+OpenBSD-Commit-ID: 63d8e13276869eebac6d7a05d5a96307f9026e47
+---
+ ssh.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/ssh.c b/ssh.c
+index 786e26d..e037c66 100644
+--- a/ssh.c
++++ b/ssh.c
+@@ -1115,6 +1115,8 @@ main(int ac, char **av)
+ 		}
+ 	}
+ 
++	signal(SIGPIPE, SIG_IGN); /* ignore SIGPIPE early */
++
+ 	/*
+ 	 * Initialize "log" output.  Since we are the client all output
+ 	 * goes to stderr unless otherwise specified by -y or -E.
+@@ -1545,7 +1547,6 @@ main(int ac, char **av)
+ 	    options.num_system_hostfiles);
+ 	tilde_expand_paths(options.user_hostfiles, options.num_user_hostfiles);
+ 
+-	signal(SIGPIPE, SIG_IGN); /* ignore SIGPIPE early */
+ 	signal(SIGCHLD, main_sigchld_handler);
+ 
+ 	/* Log into the remote system.  Never returns if the login fails. */
+-- 
+2.45.2
+

SPECS/openssh.spec

@@ -66,7 +66,7 @@
 
 # Do not forget to bump pam_ssh_agent_auth release if you rewind the main package release to 1
 %global openssh_ver 8.0p1
-%global openssh_rel 24
+%global openssh_rel 26
 %global pam_ssh_agent_ver 0.10.3
 %global pam_ssh_agent_rel 7
 
@@ -292,6 +292,10 @@ Patch1018: openssh-9.6p1-CVE-2023-48795.patch
 Patch1019: openssh-9.6p1-CVE-2023-51385.patch
 # SCP kill switch
 Patch1020: openssh-8.7p1-scp-kill-switch.patch
+#upstream commit 96faa0de6c673a2ce84736eba37fc9fb723d9e5c
+Patch1021: openssh-8.0p1-upstream-ignore-SIGPIPE.patch
+#upstream commit 0832aac79517611dd4de93ad0a83577994d9c907
+Patch1022: openssh-8.0p1-CVE-2025-26465.patch
 
 License: BSD
 Group: Applications/Internet
@@ -539,6 +543,8 @@ popd
 %patch1018 -p1 -b .cve-2023-48795
 %patch1019 -p1 -b .cve-2023-51385
 %patch1020 -p1 -b .scp-kill-switch
+%patch1021 -p1 -b .ignore-SIGPIPE
+%patch1022 -p2 -b .cve-2025-26465
 
 autoreconf
 pushd pam_ssh_agent_auth-%{pam_ssh_agent_ver}
@@ -824,6 +830,15 @@ getent passwd sshd >/dev/null || \
 %endif
 
 %changelog
+* Wed Aug 20 2025 Antonio Vieiro <avieirov@redhat.com> - 8.0p1-26
+- Fix missing invalid error code checks in OpenSSH. It prevents
+  a MITM attack when VerifyHostKeyDNS is on (CVE-2025-26465)
+  Resolves: RHEL-109228
+
+* Tue Jun 25 2024 Stepan Broz <sbroz@redhat.com> - 8.0p1-25
+- Upstream: Ignore SIGPIPE earlier in main()
+  Resolves: RHEL-37743
+
 * Tue Feb 06 2024 Dmitry Belyavskiy <dbelyavs@redhat.com> - 8.0p1-24
 - Providing a kill switch for scp to deal with CVE-2020-15778
   Resolves: RHEL-22870