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mirror of https://git.yoctoproject.org/poky synced 2026-05-09 17:39:31 +00:00

openssl: CVE-2024-41996

As discussed in [1], this commit fixes CVE-2024-41996.
Although openssl project does not consider this a vulnerability, it got
CVE number assigned so it deserves attention.

[1] https://github.com/openssl/openssl/pull/25088

(From OE-Core rev: cb49b9e49b4561ccea4c231cac591af557b9749c)

Signed-off-by: Peter Marko <peter.marko@siemens.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
This commit is contained in:
Peter Marko
2025-07-21 18:31:40 +02:00
committed by Steve Sakoman
parent 5f469434d3
commit ed5a1a7443
2 changed files with 45 additions and 0 deletions
@@ -0,0 +1,44 @@
From e70e34d857d4003199bcb5d3b52ca8102ccc1b98 Mon Sep 17 00:00:00 2001
From: Tomas Mraz <tomas@openssl.org>
Date: Mon, 5 Aug 2024 17:54:14 +0200
Subject: [PATCH] dh_kmgmt.c: Avoid expensive public key validation for known
safe-prime groups
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
The partial validation is fully sufficient to check the key validity.
Thanks to Szilárd Pfeiffer for reporting the issue.
Reviewed-by: Neil Horman <nhorman@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <ppzgs1@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/25088)
CVE: CVE-2024-41996
Upstream-Status: Backport [https://github.com/openssl/openssl/commit/e70e34d857d4003199bcb5d3b52ca8102ccc1b98]
Signed-off-by: Peter Marko <peter.marko@siemens.com>
---
providers/implementations/keymgmt/dh_kmgmt.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/providers/implementations/keymgmt/dh_kmgmt.c b/providers/implementations/keymgmt/dh_kmgmt.c
index 82c3093b12..ebdce76710 100644
--- a/providers/implementations/keymgmt/dh_kmgmt.c
+++ b/providers/implementations/keymgmt/dh_kmgmt.c
@@ -387,9 +387,11 @@ static int dh_validate_public(const DH *dh, int checktype)
if (pub_key == NULL)
return 0;
- /* The partial test is only valid for named group's with q = (p - 1) / 2 */
- if (checktype == OSSL_KEYMGMT_VALIDATE_QUICK_CHECK
- && ossl_dh_is_named_safe_prime_group(dh))
+ /*
+ * The partial test is only valid for named group's with q = (p - 1) / 2
+ * but for that case it is also fully sufficient to check the key validity.
+ */
+ if (ossl_dh_is_named_safe_prime_group(dh))
return ossl_dh_check_pub_key_partial(dh, pub_key, &res);
return DH_check_pub_key_ex(dh, pub_key);
@@ -12,6 +12,7 @@ SRC_URI = "https://github.com/openssl/openssl/releases/download/openssl-${PV}/op
file://0001-buildinfo-strip-sysroot-and-debug-prefix-map-from-co.patch \
file://0001-Configure-do-not-tweak-mips-cflags.patch \
file://0001-Added-handshake-history-reporting-when-test-fails.patch \
file://CVE-2024-41996.patch \
"
SRC_URI:append:class-nativesdk = " \