Cryptographic Issues Affecting thunderbird package, versions <1:31.8.0+build1-0ubuntu0.12.04.1


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.14% (51st percentile)

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  • Snyk IDSNYK-UBUNTU1204-THUNDERBIRD-418685
  • published6 Jul 2015
  • disclosed6 Jul 2015

Introduced: 6 Jul 2015

CVE-2015-2721  (opens in a new tab)
CWE-310  (opens in a new tab)

How to fix?

Upgrade Ubuntu:12.04 thunderbird to version 1:31.8.0+build1-0ubuntu0.12.04.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Ubuntu. See How to fix? for Ubuntu:12.04 relevant fixed versions and status.

Mozilla Network Security Services (NSS) before 3.19, as used in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, Thunderbird before 38.1, and other products, does not properly determine state transitions for the TLS state machine, which allows man-in-the-middle attackers to defeat cryptographic protection mechanisms by blocking messages, as demonstrated by removing a forward-secrecy property by blocking a ServerKeyExchange message, aka a "SMACK SKIP-TLS" issue.

References

CVSS Scores

version 3.1