mbedtls: update to 3.6.4

This release includes fixes for security issues.

Mbed TLS 3.6 is a long-term support (LTS) branch. It will be supported with bug-fixes and security fixes until at least March 2027.

Security Advisories

For full details, please see the following links:

    Race condition in AESNI support detection [1]
    Heap buffer under-read when parsing PEM-encrypted material [2]
    Unchecked return value in LMS verification allows signature bypass [3]
    Out-of-bounds read in mbedtls_lms_import_public_key() [4]
    Timing side-channel in block cipher decryption with PKCS#7 padding [5]
    NULL pointer dereference after using mbedtls_asn1_store_named_data() [6]
    Misleading memory management in mbedtls_x509_string_to_names() [7]

[1] https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2025-06-1/
[2] https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2025-06-2/
[3] https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2025-06-3/
[4] https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2025-06-4/
[5] https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2025-06-5/
[6] https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2025-06-6/
[7] https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2025-06-7/

Signed-off-by: Antony Kolitsos <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/19291
Signed-off-by: Robert Marko <[email protected]>

package/libs/mbedtls/Makefile

@@ -8,13 +8,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=mbedtls
-PKG_VERSION:=3.6.3
-PKG_RELEASE:=2
+PKG_VERSION:=3.6.4
+PKG_RELEASE:=1
 PKG_BUILD_FLAGS:=no-mips16 gc-sections no-lto
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL=https://github.com/Mbed-TLS/$(PKG_NAME)/releases/download/$(PKG_NAME)-$(PKG_VERSION)
-PKG_HASH:=64cd73842cdc05e101172f7b437c65e7312e476206e1dbfd644433d11bc56327
+PKG_HASH:=ec35b18a6c593cf98c3e30db8b98ff93e8940a8c4e690e66b41dfc011d678110
 
 PKG_LICENSE:=GPL-2.0-or-later
 PKG_LICENSE_FILES:=LICENSE