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FreeBSD: VID-D8382A69-4728-11E8-BA83-0011D823EEBD: mbed TLS (PolarSSL) -- multiple vulnerabilities

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FreeBSD: VID-D8382A69-4728-11E8-BA83-0011D823EEBD: mbed TLS (PolarSSL) -- multiple vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
03/21/2018
Created
07/25/2018
Added
04/24/2018
Modified
04/24/2018

Description

Simon Butcher reports:

Defend against Bellcore glitch attacks by verifying the results

of RSA private key operations.

Fix implementation of the truncated HMAC extension. The

previous implementation allowed an offline 2^80 brute force

attack on the HMAC key of a single, uninterrupted connection

(with no resumption of the session).

Reject CRLs containing unsupported critical extensions. Found

by Falko Strenzke and Evangelos Karatsiolis.

Fix a buffer overread in ssl_parse_server_key_exchange() that

could cause a crash on invalid input.

Fix a buffer overread in ssl_parse_server_psk_hint() that could

cause a crash on invalid input.

Solution(s)

  • freebsd-upgrade-package-mbedtls
  • freebsd-upgrade-package-polarssl13

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