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85 lines
2.8 KiB
85 lines
2.8 KiB
From 7a6c217f47b1ae37e32b173dc6d3ea7fdb86d532 Mon Sep 17 00:00:00 2001
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From: Paul Wouters <paul.wouters@aiven.io>
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Date: Tue, 28 Feb 2023 11:24:22 -0500
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Subject: [PATCH 1/2] pluto: abort processing corrupt TS payloads
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CVE-2023-23009
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Latest updates on this issue at https://libreswan.org/security/CVE-2023-23009
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---
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programs/pluto/ikev2_ts.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/programs/pluto/ikev2_ts.c b/programs/pluto/ikev2_ts.c
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index 3f7519ca38..f06c40ba46 100644
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--- a/programs/pluto/ikev2_ts.c
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+++ b/programs/pluto/ikev2_ts.c
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@@ -437,6 +437,11 @@ static bool v2_parse_tss(struct payload_digest *const ts_pd,
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d = pbs_in_struct(&ts_pd->pbs, &ikev2_ts_header_desc,
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&ts_h, sizeof(ts_h), &ts_body_pbs);
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+ if (d != NULL) {
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+ llog_diag(RC_LOG, logger, &d, "%s", "");
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+ return false;
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+ }
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+
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switch (ts_h.isath_type) {
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case IKEv2_TS_IPV4_ADDR_RANGE:
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case IKEv2_TS_IPV6_ADDR_RANGE:
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--
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2.39.2
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From 52c19ccc9455ccd91fa4946b09f8e11222f1c923 Mon Sep 17 00:00:00 2001
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From: Andrew Cagney <cagney@gnu.org>
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Date: Tue, 28 Feb 2023 14:10:44 -0500
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Subject: [PATCH 2/2] ikev1: only clean up a connection when it isn't deleted
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fix #1018 reported by Wolfgang.
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see also ecb9c88910df1fb070488835bf3180096f3ccba3:
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IKEv1: Remove all IPsec SA's of a connection when newest SA is removed.
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---
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programs/pluto/ikev1_main.c | 14 ++++++++++----
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1 file changed, 10 insertions(+), 4 deletions(-)
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diff --git a/programs/pluto/ikev1_main.c b/programs/pluto/ikev1_main.c
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index a616c5ccf3..21765d4002 100644
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--- a/programs/pluto/ikev1_main.c
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+++ b/programs/pluto/ikev1_main.c
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@@ -2130,15 +2130,16 @@ bool accept_delete(struct msg_digest *md,
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ntohl(spi));
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}
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- struct connection *rc = dst->st_connection;
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+ /* save for post delete_state() code */
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+ co_serial_t rc_serialno = dst->st_connection->serialno;
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if (nat_traversal_enabled && dst->st_connection->ikev1_natt != NATT_NONE) {
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nat_traversal_change_port_lookup(md, dst);
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v1_maybe_natify_initiator_endpoints(st, HERE);
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}
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- if (rc->newest_ipsec_sa == dst->st_serialno &&
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- (rc->policy & POLICY_UP)) {
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+ if (dst->st_connection->newest_ipsec_sa == dst->st_serialno &&
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+ (dst->st_connection->policy & POLICY_UP)) {
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/*
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* Last IPsec SA for a permanent
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* connection that we have initiated.
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@@ -2162,7 +2163,12 @@ bool accept_delete(struct msg_digest *md,
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md->v1_st = NULL;
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}
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- if (rc->newest_ipsec_sa == SOS_NOBODY) {
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+ /*
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+ * Either .newest_ipsec_sa matches DST
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+ * and is cleared, or was never set.
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+ */
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+ struct connection *rc = connection_by_serialno(rc_serialno);
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+ if (rc != NULL && rc->newest_ipsec_sa == SOS_NOBODY) {
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dbg("%s() connection '%s' -POLICY_UP", __func__, rc->name);
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rc->policy &= ~POLICY_UP;
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if (!shared_phase1_connection(rc)) {
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--
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2.39.2
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