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-rw-r--r--gnu/packages/patches/openssh-CVE-2018-15473.patch165
-rw-r--r--gnu/packages/ssh.scm5
2 files changed, 2 insertions, 168 deletions
diff --git a/gnu/packages/patches/openssh-CVE-2018-15473.patch b/gnu/packages/patches/openssh-CVE-2018-15473.patch
deleted file mode 100644
index 26b2dc59c3..0000000000
--- a/gnu/packages/patches/openssh-CVE-2018-15473.patch
+++ /dev/null
@@ -1,165 +0,0 @@
-Fix CVE-2018-15473, a method by which remote clients can enumerate
-usernames on the server:
-
-http://seclists.org/oss-sec/2018/q3/124
-https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15473
-
-Patch adapted from upstream source repository:
-
-https://anongit.mindrot.org/openssh.git/commit/?id=74287f5df9966a0648b4a68417451dd18f079ab8
-
-From 74287f5df9966a0648b4a68417451dd18f079ab8 Mon Sep 17 00:00:00 2001
-From: "djm@openbsd.org" <djm@openbsd.org>
-Date: Tue, 31 Jul 2018 03:10:27 +0000
-Subject: [PATCH] upstream: delay bailout for invalid authentic
-
-=?UTF-8?q?ating=20user=20until=20after=20the=20packet=20containing=20the?=
-=?UTF-8?q?=20request=20has=20been=20fully=20parsed.=20Reported=20by=20Dar?=
-=?UTF-8?q?iusz=20Tytko=20and=20Micha=C5=82=20Sajdak;=20ok=20deraadt?=
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-OpenBSD-Commit-ID: b4891882fbe413f230fe8ac8a37349b03bd0b70d
----
- auth2-gss.c | 11 +++++++----
- auth2-hostbased.c | 11 ++++++-----
- auth2-pubkey.c | 25 +++++++++++++++----------
- 3 files changed, 28 insertions(+), 19 deletions(-)
-
-# Adapted from upstream to apply to OpenSSH 7.7p1.
-diff --git a/auth2-gss.c b/auth2-gss.c
-index 589283b7..1d7cfb39 100644
---- a/auth2-gss.c
-+++ b/auth2-gss.c
-@@ -69,9 +69,6 @@ userauth_gssapi(struct ssh *ssh)
- u_int len;
- u_char *doid = NULL;
-
-- if (!authctxt->valid || authctxt->user == NULL)
-- return (0);
--
- mechs = packet_get_int();
- if (mechs == 0) {
- debug("Mechanism negotiation is not supported");
-diff --git a/auth2-gss.c b/auth2-gss.c
-index 47308c5c..9351e042 100644
---- a/auth2-gss.c
-+++ b/auth2-gss.c
-@@ -106,6 +103,12 @@ userauth_gssapi(struct ssh *ssh)
- return (0);
- }
-
-+ if (!authctxt->valid || authctxt->user == NULL) {
-+ debug2("%s: disabled because of invalid user", __func__);
-+ free(doid);
-+ return (0);
-+ }
-+
- if (GSS_ERROR(PRIVSEP(ssh_gssapi_server_ctx(&ctxt, &goid)))) {
- if (ctxt != NULL)
- ssh_gssapi_delete_ctx(&ctxt);
-diff --git a/auth2-hostbased.c b/auth2-hostbased.c
-index 60159a56..35939329 100644
---- a/auth2-hostbased.c
-+++ b/auth2-hostbased.c
-@@ -67,10 +67,6 @@ userauth_hostbased(struct ssh *ssh)
- size_t alen, blen, slen;
- int r, pktype, authenticated = 0;
-
-- if (!authctxt->valid) {
-- debug2("%s: disabled because of invalid user", __func__);
-- return 0;
-- }
- /* XXX use sshkey_froms() */
- if ((r = sshpkt_get_cstring(ssh, &pkalg, &alen)) != 0 ||
- (r = sshpkt_get_string(ssh, &pkblob, &blen)) != 0 ||
-@@ -117,6 +113,11 @@ userauth_hostbased(struct ssh *ssh)
- goto done;
- }
-
-+ if (!authctxt->valid || authctxt->user == NULL) {
-+ debug2("%s: disabled because of invalid user", __func__);
-+ goto done;
-+ }
-+
- if ((b = sshbuf_new()) == NULL)
- fatal("%s: sshbuf_new failed", __func__);
- /* reconstruct packet */
-diff --git a/auth2-pubkey.c b/auth2-pubkey.c
-index c4d0f790..e1c15040 100644
---- a/auth2-pubkey.c
-+++ b/auth2-pubkey.c
-@@ -89,19 +89,15 @@ userauth_pubkey(struct ssh *ssh)
- {
- Authctxt *authctxt = ssh->authctxt;
- struct passwd *pw = authctxt->pw;
-- struct sshbuf *b;
-+ struct sshbuf *b = NULL;
- struct sshkey *key = NULL;
-- char *pkalg, *userstyle = NULL, *key_s = NULL, *ca_s = NULL;
-- u_char *pkblob, *sig, have_sig;
-+ char *pkalg = NULL, *userstyle = NULL, *key_s = NULL, *ca_s = NULL;
-+ u_char *pkblob = NULL, *sig = NULL, have_sig;
- size_t blen, slen;
- int r, pktype;
- int authenticated = 0;
- struct sshauthopt *authopts = NULL;
-
-- if (!authctxt->valid) {
-- debug2("%s: disabled because of invalid user", __func__);
-- return 0;
-- }
- if ((r = sshpkt_get_u8(ssh, &have_sig)) != 0 ||
- (r = sshpkt_get_cstring(ssh, &pkalg, NULL)) != 0 ||
- (r = sshpkt_get_string(ssh, &pkblob, &blen)) != 0)
-@@ -167,6 +163,11 @@ userauth_pubkey(struct ssh *ssh)
- fatal("%s: sshbuf_put_string session id: %s",
- __func__, ssh_err(r));
- }
-+ if (!authctxt->valid || authctxt->user == NULL) {
-+ debug2("%s: disabled because of invalid user",
-+ __func__);
-+ goto done;
-+ }
- /* reconstruct packet */
- xasprintf(&userstyle, "%s%s%s", authctxt->user,
- authctxt->style ? ":" : "",
-@@ -183,7 +184,6 @@ userauth_pubkey(struct ssh *ssh)
- #ifdef DEBUG_PK
- sshbuf_dump(b, stderr);
- #endif
--
- /* test for correct signature */
- authenticated = 0;
- if (PRIVSEP(user_key_allowed(ssh, pw, key, 1, &authopts)) &&
-@@ -194,7 +194,6 @@ userauth_pubkey(struct ssh *ssh)
- authenticated = 1;
- }
- sshbuf_free(b);
-- free(sig);
- auth2_record_key(authctxt, authenticated, key);
- } else {
- debug("%s: test pkalg %s pkblob %s%s%s",
-@@ -205,6 +204,11 @@ userauth_pubkey(struct ssh *ssh)
- if ((r = sshpkt_get_end(ssh)) != 0)
- fatal("%s: %s", __func__, ssh_err(r));
-
-+ if (!authctxt->valid || authctxt->user == NULL) {
-+ debug2("%s: disabled because of invalid user",
-+ __func__);
-+ goto done;
-+ }
- /* XXX fake reply and always send PK_OK ? */
- /*
- * XXX this allows testing whether a user is allowed
-@@ -238,6 +242,7 @@ done:
- free(pkblob);
- free(key_s);
- free(ca_s);
-+ free(sig);
- return authenticated;
- }
-
---
-2.18.0
diff --git a/gnu/packages/ssh.scm b/gnu/packages/ssh.scm
index 0d9bd5a119..a58ebff481 100644
--- a/gnu/packages/ssh.scm
+++ b/gnu/packages/ssh.scm
@@ -148,15 +148,14 @@ a server that supports the SSH-2 protocol.")
(define-public openssh
(package
(name "openssh")
- (version "7.7p1")
+ (version "7.8p1")
(source (origin
(method url-fetch)
(uri (string-append "mirror://openbsd/OpenSSH/portable/"
name "-" version ".tar.gz"))
- (patches (search-patches "openssh-CVE-2018-15473.patch"))
(sha256
(base32
- "13vbbrvj3mmfhj83qyrg5c0ipr6bzw5s65dy4k8gr7p9hkkfffyp"))))
+ "1jj4f586r9lhakp2w0zv7j616d6x62m15q8l4nxq7haja6qlnj0s"))))
(build-system gnu-build-system)
(native-inputs `(("groff" ,groff)))
(inputs `(("openssl" ,openssl)
generated by cgit v1.2.3 (git 2.45.0) at 2024-12-02 02:34:20 +0000