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Cryptographic Issues Affecting nss package, versions <2:3.26-1+debu8u1

Severity

 Recommended
0.0
low
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    97.41% (100th percentile)

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  • Snyk ID SNYK-DEBIAN8-NSS-421241
  • published 21 May 2015
  • disclosed 21 May 2015
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Introduced: 21 May 2015

CVE-2015-4000 Open this link in a new tab
CWE-310 Open this link in a new tab

How to fix?

Upgrade Debian:8 nss to version 2:3.26-1+debu8u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nss package and not the nss package as distributed by Debian. See How to fix? for Debian:8 relevant fixed versions and status.

The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server but not on a client, does not properly convey a DHE_EXPORT choice, which allows man-in-the-middle attackers to conduct cipher-downgrade attacks by rewriting a ClientHello with DHE replaced by DHE_EXPORT and then rewriting a ServerHello with DHE_EXPORT replaced by DHE, aka the "Logjam" issue.

References