This fixes the following security problems:
* Zeroize several intermediate variables used to calculate the expected
value when verifying a MAC or AEAD tag. This hardens the library in
case the value leaks through a memory disclosure vulnerability. For
example, a memory disclosure vulnerability could have allowed a
man-in-the-middle to inject fake ciphertext into a DTLS connection.
* Fix a double-free that happened after mbedtls_ssl_set_session() or
mbedtls_ssl_get_session() failed with MBEDTLS_ERR_SSL_ALLOC_FAILED
(out of memory). After that, calling mbedtls_ssl_session_free()
and mbedtls_ssl_free() would cause an internal session buffer to
be free()'d twice. CVE-2021-44732
The sizes of the ipk changed on MIPS 24Kc like this:
182454 libmbedtls12_2.16.11-2_mips_24kc.ipk
182742 libmbedtls12_2.16.12-1_mips_24kc.ipk
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit 57f38e2c82)
This release of Mbed TLS provides bug fixes and minor enhancements. This
release includes fixes for security issues.
Security fixes:
* Fix a buffer overflow in mbedtls_mpi_sub_abs()
* Fix an errorneous estimation for an internal buffer in
mbedtls_pk_write_key_pem()
* Fix a stack buffer overflow with mbedtls_net_poll() and
mbedtls_net_recv_timeout()
* Guard against strong local side channel attack against base64 tables
by making access aceess to them use constant flow code
Full release announcement:
https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.10
Signed-off-by: Magnus Kroken <mkroken@gmail.com>
(cherry picked from commit dbde2bcf60)
This adds a config option to allow compiling with HKDF algorithm support
to support applications that require this feature.
Signed-off-by: Etan Kissling <etan_kissling@apple.com>
This release of Mbed TLS provides bug fixes and minor enhancements. This
release includes fixes for security issues and the most notable of them
are described in more detail in the security advisories.
* Local side channel attack on RSA and static Diffie-Hellman
* Local side channel attack on classical CBC decryption in (D)TLS
* When checking X.509 CRLs, a certificate was only considered as revoked
if its revocationDate was in the past according to the local clock if
available.
Full release announcement:
https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8
Signed-off-by: Magnus Kroken <mkroken@gmail.com>
Mbed TLS 2.16.7 is a maintenance release of the Mbed TLS 2.16 branch,
and provides bug fixes and minor enhancements. This release includes
fixes for security issues and the most severe one is described in more
detail in a security advisory:
https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-07
* Fix a side channel vulnerability in modular exponentiation that could
reveal an RSA private key used in a secure enclave.
* Fix side channel in mbedtls_ecp_check_pub_priv() and
mbedtls_pk_parse_key() / mbedtls_pk_parse_keyfile() (when loading a private
key that didn't include the uncompressed public key), as well as
mbedtls_ecp_mul() / mbedtls_ecp_mul_restartable() when called with a NULL
f_rng argument. An attacker with access to precise enough timing and
memory access information (typically an untrusted operating system
attacking a secure enclave) could fully recover the ECC private key.
* Fix issue in Lucky 13 counter-measure that could make it ineffective when
hardware accelerators were used (using one of the MBEDTLS_SHAxxx_ALT
macros).
Due to Mbed TLS moving from ARMmbed to the Trusted Firmware project, some
changes to the download URLs are required. For the time being, the
ARMmbed/mbedtls Github repository is the canonical source for Mbed TLS.
Signed-off-by: Magnus Kroken <mkroken@gmail.com>
[Use https://codeload.github.com and new tar.gz file]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Security fixes for:
* CVE-2020-10932
* a potentially remotely exploitable buffer overread in a DTLS client
* bug in DTLS handling of new associations with the same parameters
Full release announement:
https://tls.mbed.org/tech-updates/releases/mbedtls-2.16.6-and-2.7.15-released
Signed-off-by: Magnus Kroken <mkroken@gmail.com>
License "GPL-2.0+" is deprecated License Identifier according to
SPDX License list [1]. The correct one is GPL-2.0-or-later.
While at it, also add the License file.
[1] https://spdx.org/licenses/
Signed-off-by: Josef Schlehofer <pepe.schlehofer@gmail.com>
Remove 300-bn_mul.h-Use-optimized-MULADDC-code-only-on-ARM-6.patch,
the issue has been fixed upstream.
Signed-off-by: Magnus Kroken <mkroken@gmail.com>
This introduces a new Kconfig option to switch on/off mbedtls' support
for debug functions.
The idea behind is to inspect TLS traffic with Wireshark for debug
purposes. At the moment, there is no native or 'nice' support for
this, but at
68aea15833
an example implementation can be found which uses the debug functions
of the library. However, this requires to have this debug stuff enabled
in the library, but at the moment it is staticly patched out.
So this patch removes the static part from the configuration patch
and introduces a dynamic config file editing during build.
When enabled, this heavily increases the library size, so I added
a warning in the Kconfig help section.
Signed-off-by: Michael Heimpold <mhei@heimpold.de>
In the case of upstream libraries, set the ABI_VERSION variable to the
soname value of the first version version after the last backwards
incompatible change.
For custom OpenWrt libraries, set the ABI_VERSION to the date of the
last Git commit doing backwards incompatible changes to the source,
such as changing function singatures or dropping exported symbols.
The soname values have been determined by either checking
https://abi-laboratory.pro/index.php?view=tracker or - in the case
of OpenWrt libraries - by carefully reviewing the changes made to
header files thorough the corresponding Git history.
In the future, the ABI_VERSION values must be bumped whenever the
library is updated to an incpompatible version but not with every
package update, in order to reduce the dependency churn in the
binary package repository.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
mbedtls uses some instructions introduced in ARMv6 which are not
available in older architectures.
Fixes: 3f7dd06fd8 ("mbedtls: Update to 2.14.1")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Update mbedtls to 2.14.1
This fixes:
* CVE-2018-19608: Local timing attack on RSA decryption
Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>
[Update to 2.14.1]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
* Fixed a security issue in the X.509 module which could lead to a buffer overread during certificate extensions parsing.
* Several bugfixes.
* Improvements for better support for DTLS on low-bandwidth, high latency networks with high packet loss.
Signed-off-by: Magnus Kroken <mkroken@gmail.com>
Update mbedtls to 2.12.0
Multiple security fixes
Add support for Chacha20 and Poly1305 cryptographic primitives and their
associated ciphersuites
Difference in size on mips_24kc (ipk):
164kbytes (167882 bytes)
170kbytes (173563 bytes)
https://tls.mbed.org/tech-updates/releases/mbedtls-2.12.0-2.7.5-and-2.1.14-released
Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>
With deterministic ECDSA the value k needed for the ECDSA signature is
not randomly generated any more, but generated from a hash over the
private key and the message to sign. If the value k used in a ECDSA
signature or the relationship between the two values k used in two
different ECDSA signatures over the same content is know to an attacker
he can derive the private key pretty easily. Using deterministic ECDSA
as defined in the RFC6979 removes this problem by deriving the value k
deterministically from the private key and the content which gets
signed.
The resulting signature is still compatible to signatures generated not
deterministic.
This increases the size of the ipk on mips 24Kc by about 2 KByte.
old:
166.240 libmbedtls_2.11.0-1_mips_24kc.ipk
new:
167.811 libmbedtls_2.11.0-1_mips_24kc.ipk
This does not change the ECDSA performance in a measurable way.
Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Disable MBEDTLS_SHA256_SMALLER implementation, not enabled by default in
upstream and reduces performance by quite a bit.
Source: include/mbedtls/config.h
Enable an implementation of SHA-256 that has lower ROM footprint but also
lower performance.
The default implementation is meant to be a reasonnable compromise between
performance and size. This version optimizes more aggressively for size at
the expense of performance. Eg on Cortex-M4 it reduces the size of
mbedtls_sha256_process() from ~2KB to ~0.5KB for a performance hit of
about 30%.
The size of mbedtls increased a little bit:
ipkg for mips_24kc before:
164.382 Bytes
ipkg for mips_24kc after:
166.240 Bytes
Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>
Update mbed TLS to 2.11.0
Disable OFB block mode and XTS block cipher mode, added in 2.11.0.
The soVersion of mbedtls changed, bump PKG_RELEASE for packages that use mbedTLS
This is to avoid having a mismatch between packages when upgrading.
The size of mbedtls increased a little bit:
ipkg for mips_24kc before:
163.846 Bytes
ipkg for mips_24kc after:
164.382 Bytes
Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>
This makes mbedtls use the POSIX API directly and not use the own
abstraction layer.
The size of the ipkg decreased by about 100 bytes.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This make sit possible to store informations about a session and reuse
it later. When used by a server it increases the time to create a new
TLS session from about 1 second to less than 0.1 seconds.
The size of the ipkg file increased by about 800 Bytes.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
The soversion was changed in this version again and is now aligned with
the 2.7.2 version.
The size of the ipkg file stayed mostly the same.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This fixes some minor security problems.
Old size:
162262 bin/packages/mips_24kc/base/libmbedtls_2.7.0-1_mips_24kc.ipk
New size:
163162 bin/packages/mips_24kc/base/libmbedtls_2.8.0-1_mips_24kc.ipk
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Some functions used by a lot of other software was renamed and is only
active when deprecated functions are allowed, deactivate the removal of
deprecated functions for now.
Fixes: 75c5ab4caf ("mbedtls: update to version 2.7.0")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This fixes the following security problems:
* CVE-2018-0488: Risk of remote code execution when truncated HMAC is enabled
* CVE-2018-0487: Risk of remote code execution when verifying RSASSA-PSS signatures
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
CPE ids helps to tracks CVE in packages.
https://cpe.mitre.org/specification/
Thanks to swalker for CPE to package mapping and
keep tracking CVEs.
Acked-by: Jo-Philipp Wich <jo@mein.io>
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Fixed an authentication bypass issue in SSL/TLS. When the TLS
authentication mode was set to 'optional',
mbedtls_ssl_get_verify_result() would incorrectly return 0 when the
peer's X.509 certificate chain had more than
MBEDTLS_X509_MAX_INTERMEDIATE_CA intermediates (default: 8), even when
it was not trusted. This could be triggered remotely on both the client
and server side. (Note, with the authentication mode set by
mbedtls_ssl_conf_authmode()to be 'required' (the default), the handshake
was correctly aborted).
Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
Tested-by: Magnus Kroken <mkroken@gmail.com>
Fixes some security issues (no remote exploits), and introduces
some changes. See release notes for details:
https://tls.mbed.org/tech-updates/releases/mbedtls-2.5.1-2.1.8-and-1.3.20-released
* Fixes an unlimited overread of heap-based buffers in mbedtls_ssl_read()
* Adds exponent blinding to RSA private operations
* Wipes stack buffers in RSA private key operations (rsa_rsaes_pkcs1_v15_decrypt(), rsa_rsaes_oaep_decrypt())
* Removes SHA-1 and RIPEMD-160 from the default hash algorithms for certificate verification.
* Fixes offset in FALLBACK_SCSV parsing that caused TLS server to fail to detect it sometimes.
* Tighten parsing of RSA PKCS#1 v1.5 signatures, to avoid a potential Bleichenbacher/BERserk-style attack.
Signed-off-by: Magnus Kroken <mkroken@gmail.com>
This fixes the following security problems:
* CVE-2017-2784: Freeing of memory allocated on stack when validating a public key with a secp224k1 curve
* SLOTH vulnerability
* Denial of Service through Certificate Revocation List
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Later OpenVPN 2.3-openssl versions only enable
TLS cipher suites with perfect forward secrecy, i.e. DHE and ECDHE
cipher suites. ECDHE key exchange is not supported by
OpenVPN 2.3-openssl, enable DHE key exchange to allow LEDE
OpenVPN 2.4-mbedtls clients to connect to such servers.
Signed-off-by: Magnus Kroken <mkroken@gmail.com>
Reported-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reported-by: Lucian Cristian <luci@createc.ro>
Secp384r1 is the default curve for OpenVPN 2.4+. Enable this to
make OpenVPN-mbedtls clients able to perform ECDHE key exchange
with remote OpenVPN 2.4-openssl servers that use the default
OpenVPN curve.
Signed-off-by: Magnus Kroken <mkroken@gmail.com>
One of those changes is re-enabling blowfish support to make
openvpn-mbedtls compatible with common configurations
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This option is required by OpenVPN, and OpenVPN 2.4 uses mbedTLS 2.x.
DHM_C is also already enabled in the PolarSSL 1.3.x config.h.
Signed-off-by: Magnus Kroken <mkroken@gmail.com>
