Date: Sun, 14 Apr 2024 19:36:06 GMT From: Bernard Spil <brnrd@FreeBSD.org> To: ports-committers@FreeBSD.org, dev-commits-ports-all@FreeBSD.org, dev-commits-ports-branches@FreeBSD.org Subject: git: 6c6a42583837 - 2024Q2 - security/openssl: Security update for CVE-2024-2511 Message-ID: <202404141936.43EJa6Ac089871@gitrepo.freebsd.org>
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The branch 2024Q2 has been updated by brnrd: URL: https://cgit.FreeBSD.org/ports/commit/?id=6c6a4258383788a381f2eab40fa51596a3ba76f7 commit 6c6a4258383788a381f2eab40fa51596a3ba76f7 Author: Bernard Spil <brnrd@FreeBSD.org> AuthorDate: 2024-04-14 19:20:42 +0000 Commit: Bernard Spil <brnrd@FreeBSD.org> CommitDate: 2024-04-14 19:34:28 +0000 security/openssl: Security update for CVE-2024-2511 Security: 7c217849-f7d7-11ee-a490-84a93843eb75 MFH: 2024Q2 (cherry picked from commit 3d9fc064b701d8a3af170cfb76042c611d2f1dd0) --- security/openssl/Makefile | 2 +- security/openssl/files/patch-CVE-2024-2511 | 118 +++++++++++++++++++++++++++++ 2 files changed, 119 insertions(+), 1 deletion(-) diff --git a/security/openssl/Makefile b/security/openssl/Makefile index f87321fdb628..2746bb51cdcc 100644 --- a/security/openssl/Makefile +++ b/security/openssl/Makefile @@ -1,6 +1,6 @@ PORTNAME= openssl PORTVERSION= 3.0.13 -PORTREVISION= 2 +PORTREVISION= 3 PORTEPOCH= 1 CATEGORIES= security devel MASTER_SITES= https://www.openssl.org/source/ \ diff --git a/security/openssl/files/patch-CVE-2024-2511 b/security/openssl/files/patch-CVE-2024-2511 new file mode 100644 index 000000000000..168faba4a3ea --- /dev/null +++ b/security/openssl/files/patch-CVE-2024-2511 @@ -0,0 +1,118 @@ +From b52867a9f618bb955bed2a3ce3db4d4f97ed8e5d Mon Sep 17 00:00:00 2001 +From: Matt Caswell <matt@openssl.org> +Date: Tue, 5 Mar 2024 15:43:53 +0000 +Subject: [PATCH] Fix unconstrained session cache growth in TLSv1.3 + +In TLSv1.3 we create a new session object for each ticket that we send. +We do this by duplicating the original session. If SSL_OP_NO_TICKET is in +use then the new session will be added to the session cache. However, if +early data is not in use (and therefore anti-replay protection is being +used), then multiple threads could be resuming from the same session +simultaneously. If this happens and a problem occurs on one of the threads, +then the original session object could be marked as not_resumable. When we +duplicate the session object this not_resumable status gets copied into the +new session object. The new session object is then added to the session +cache even though it is not_resumable. + +Subsequently, another bug means that the session_id_length is set to 0 for +sessions that are marked as not_resumable - even though that session is +still in the cache. Once this happens the session can never be removed from +the cache. When that object gets to be the session cache tail object the +cache never shrinks again and grows indefinitely. + +CVE-2024-2511 + +Reviewed-by: Neil Horman <nhorman@openssl.org> +Reviewed-by: Tomas Mraz <tomas@openssl.org> +(Merged from https://github.com/openssl/openssl/pull/24044) + +(cherry picked from commit 7e4d731b1c07201ad9374c1cd9ac5263bdf35bce) +--- + ssl/ssl_lib.c | 5 +++-- + ssl/ssl_sess.c | 28 ++++++++++++++++++++++------ + ssl/statem/statem_srvr.c | 5 ++--- + 3 files changed, 27 insertions(+), 11 deletions(-) + +diff --git a/ssl/ssl_lib.c b/ssl/ssl_lib.c +index 2c8479eb5fc69..eed649c6fdee9 100644 +--- ssl/ssl_lib.c{.orig} ++++ ssl/ssl_lib.c +@@ -3736,9 +3736,10 @@ void ssl_update_cache(SSL *s, int mode) + + /* + * If the session_id_length is 0, we are not supposed to cache it, and it +- * would be rather hard to do anyway :-) ++ * would be rather hard to do anyway :-). Also if the session has already ++ * been marked as not_resumable we should not cache it for later reuse. + */ +- if (s->session->session_id_length == 0) ++ if (s->session->session_id_length == 0 || s->session->not_resumable) + return; + + /* +diff --git a/ssl/ssl_sess.c b/ssl/ssl_sess.c +index d836b33ed0e81..75adbd9e52b40 100644 +--- ssl/ssl_sess.c.orig ++++ ssl/ssl_sess.c +@@ -152,16 +152,11 @@ SSL_SESSION *SSL_SESSION_new(void) + return ss; + } + +-SSL_SESSION *SSL_SESSION_dup(const SSL_SESSION *src) +-{ +- return ssl_session_dup(src, 1); +-} +- + /* + * Create a new SSL_SESSION and duplicate the contents of |src| into it. If + * ticket == 0 then no ticket information is duplicated, otherwise it is. + */ +-SSL_SESSION *ssl_session_dup(const SSL_SESSION *src, int ticket) ++static SSL_SESSION *ssl_session_dup_intern(const SSL_SESSION *src, int ticket) + { + SSL_SESSION *dest; + +@@ -285,6 +280,27 @@ SSL_SESSION *ssl_session_dup(const SSL_SESSION *src, int ticket) + return NULL; + } + ++SSL_SESSION *SSL_SESSION_dup(const SSL_SESSION *src) ++{ ++ return ssl_session_dup_intern(src, 1); ++} ++ ++/* ++ * Used internally when duplicating a session which might be already shared. ++ * We will have resumed the original session. Subsequently we might have marked ++ * it as non-resumable (e.g. in another thread) - but this copy should be ok to ++ * resume from. ++ */ ++SSL_SESSION *ssl_session_dup(const SSL_SESSION *src, int ticket) ++{ ++ SSL_SESSION *sess = ssl_session_dup_intern(src, ticket); ++ ++ if (sess != NULL) ++ sess->not_resumable = 0; ++ ++ return sess; ++} ++ + const unsigned char *SSL_SESSION_get_id(const SSL_SESSION *s, unsigned int *len) + { + if (len) +diff --git a/ssl/statem/statem_srvr.c b/ssl/statem/statem_srvr.c +index a9e67f9d32a77..6c942e6bcec29 100644 +--- ssl/statem/statem_srvr.c.orig ++++ ssl/statem/statem_srvr.c +@@ -2338,9 +2338,8 @@ int tls_construct_server_hello(SSL *s, WPACKET *pkt) + * so the following won't overwrite an ID that we're supposed + * to send back. + */ +- if (s->session->not_resumable || +- (!(s->ctx->session_cache_mode & SSL_SESS_CACHE_SERVER) +- && !s->hit)) ++ if (!(s->ctx->session_cache_mode & SSL_SESS_CACHE_SERVER) ++ && !s->hit) + s->session->session_id_length = 0; + + if (usetls13) {
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