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MFSA2015-150 Firefox: MD5 signatures accepted within TLS 1.2 ServerKeyExchange in server signature (CVE-2015-7575)

Severity CVSS Published Added Modified
4 (AV:N/AC:M/Au:N/C:N/I:P/A:N) December 21, 2015 January 06, 2016 November 05, 2017

Description

Mozilla Network Security Services (NSS) before 3.20.2, as used in Mozilla Firefox before 43.0.2 and Firefox ESR 38.x before 38.5.2, does not reject MD5 signatures in Server Key Exchange messages in TLS 1.2 Handshake Protocol traffic, which makes it easier for man-in-the-middle attackers to spoof servers by triggering a collision.

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References

Solution

mozilla-firefox-esr-upgrade-38_6

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