[Buildroot] [PATCH 1/1] package/wolfssl: security bump to version 4.5.0
peter at korsgaard.com
Sat Aug 29 09:58:21 UTC 2020
>>>>> "Fabrice" == Fabrice Fontaine <fontaine.fabrice at gmail.com> writes:
> wolfSSL version 4.5.0 contains 6 vulnerability fixes: 2 fixes for TLS 1.3,
> 2 side channel attack mitigations, 1 fix for a potential private key leak
> in a specific use case, 1 fix for DTLS including those 3 CVEs:
> - Fix CVE-2020-12457: An issue was discovered in wolfSSL before 4.5.0.
> It mishandles the change_cipher_spec (CCS) message processing logic
> for TLS 1.3. If an attacker sends ChangeCipherSpec messages in a
> crafted way involving more than one in a row, the server becomes stuck
> in the ProcessReply() loop, i.e., a denial of service.
> - Fix CVE-2020-15309: An issue was discovered in wolfSSL before 4.5.0,
> when single precision is not employed. Local attackers can conduct a
> cache-timing attack against public key operations. These attackers may
> already have obtained sensitive information if the affected system has
> been used for private key operations (e.g., signing with a private
> - Fix CVE-2020-24585: An issue was discovered in the DTLS handshake
> implementation in wolfSSL before 4.5.0. Clear DTLS application_data
> messages in epoch 0 do not produce an out-of-order error. Instead,
> these messages are returned to the application.
> Also update hash of LICENSING as well as WOLF_LICENSE due to later
> verbage update with
> Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
Committed to 2020.02.x and 2020.05.x, thanks.
Bye, Peter Korsgaard
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