From: Siddharth Doshi <[email protected]> Upstream-Status: Backport from [https://github.com/openssl/openssl/commit/3559e868e58005d15c6013a0c1fd832e51c73397]
CVE's Fixed: CVE-2024-4741:Use After Free with SSL_free_buffers Signed-off-by: Siddharth Doshi <[email protected]> --- .../openssl/openssl/CVE-2024-4741.patch | 76 +++++++++++++++++++ .../openssl/openssl_3.0.13.bb | 1 + 2 files changed, 77 insertions(+) create mode 100644 meta/recipes-connectivity/openssl/openssl/CVE-2024-4741.patch diff --git a/meta/recipes-connectivity/openssl/openssl/CVE-2024-4741.patch b/meta/recipes-connectivity/openssl/openssl/CVE-2024-4741.patch new file mode 100644 index 0000000000..2fbc55b48a --- /dev/null +++ b/meta/recipes-connectivity/openssl/openssl/CVE-2024-4741.patch @@ -0,0 +1,76 @@ +From b3f0eb0a295f58f16ba43ba99dad70d4ee5c437d Mon Sep 17 00:00:00 2001 +From: Watson Ladd <[email protected]> +Date: Wed, 24 Apr 2024 11:26:56 +0100 +Subject: [PATCH] Only free the read buffers if we're not using them + +If we're part way through processing a record, or the application has +not released all the records then we should not free our buffer because +they are still needed. + +CVE-2024-4741 + +Reviewed-by: Tomas Mraz <[email protected]> +Reviewed-by: Neil Horman <[email protected]> +Reviewed-by: Matt Caswell <[email protected]> +(Merged from https://github.com/openssl/openssl/pull/24395) + +(cherry picked from commit 704f725b96aa373ee45ecfb23f6abfe8be8d9177) + +Upstream-Status: Backport from [https://github.com/openssl/openssl/commit/b3f0eb0a295f58f16ba43ba99dad70d4ee5c437d] +CVE: CVE-2024-4741 +Signed-off-by: Siddharth Doshi <[email protected]> +--- + ssl/record/rec_layer_s3.c | 9 +++++++++ + ssl/record/record.h | 1 + + ssl/ssl_lib.c | 3 +++ + 3 files changed, 13 insertions(+) + +diff --git a/ssl/record/rec_layer_s3.c b/ssl/record/rec_layer_s3.c +index 4bcffcc..1569997 100644 +--- a/ssl/record/rec_layer_s3.c ++++ b/ssl/record/rec_layer_s3.c +@@ -81,6 +81,15 @@ int RECORD_LAYER_read_pending(const RECORD_LAYER *rl) + return SSL3_BUFFER_get_left(&rl->rbuf) != 0; + } + ++int RECORD_LAYER_data_present(const RECORD_LAYER *rl) ++{ ++ if (rl->rstate == SSL_ST_READ_BODY) ++ return 1; ++ if (RECORD_LAYER_processed_read_pending(rl)) ++ return 1; ++ return 0; ++} ++ + /* Checks if we have decrypted unread record data pending */ + int RECORD_LAYER_processed_read_pending(const RECORD_LAYER *rl) + { +diff --git a/ssl/record/record.h b/ssl/record/record.h +index 234656b..b60f71c 100644 +--- a/ssl/record/record.h ++++ b/ssl/record/record.h +@@ -205,6 +205,7 @@ void RECORD_LAYER_release(RECORD_LAYER *rl); + int RECORD_LAYER_read_pending(const RECORD_LAYER *rl); + int RECORD_LAYER_processed_read_pending(const RECORD_LAYER *rl); + int RECORD_LAYER_write_pending(const RECORD_LAYER *rl); ++int RECORD_LAYER_data_present(const RECORD_LAYER *rl); + void RECORD_LAYER_reset_read_sequence(RECORD_LAYER *rl); + void RECORD_LAYER_reset_write_sequence(RECORD_LAYER *rl); + int RECORD_LAYER_is_sslv2_record(RECORD_LAYER *rl); +diff --git a/ssl/ssl_lib.c b/ssl/ssl_lib.c +index 2c8479e..131eaac 100644 +--- a/ssl/ssl_lib.c ++++ b/ssl/ssl_lib.c +@@ -5491,6 +5491,9 @@ int SSL_free_buffers(SSL *ssl) + if (RECORD_LAYER_read_pending(rl) || RECORD_LAYER_write_pending(rl)) + return 0; + ++ if (RECORD_LAYER_data_present(rl)) ++ return 0; ++ + RECORD_LAYER_release(rl); + return 1; + } +-- +2.35.7 + diff --git a/meta/recipes-connectivity/openssl/openssl_3.0.13.bb b/meta/recipes-connectivity/openssl/openssl_3.0.13.bb index 87ab4047d9..46f02aa20a 100644 --- a/meta/recipes-connectivity/openssl/openssl_3.0.13.bb +++ b/meta/recipes-connectivity/openssl/openssl_3.0.13.bb @@ -14,6 +14,7 @@ SRC_URI = "http://www.openssl.org/source/openssl-${PV}.tar.gz \ file://0001-Configure-do-not-tweak-mips-cflags.patch \ file://CVE-2024-2511.patch \ file://CVE-2024-4603.patch \ + file://CVE-2024-4741.patch \ " SRC_URI:append:class-nativesdk = " \ -- 2.34.1
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