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OpenAdvisories
Low USN-2673-1 10 CVEs

thunderbird vulnerabilities

Published Jul 20, 2015 · Updated May 29, 2026

Summary

Karthikeyan Bhargavan discovered that NSS incorrectly handled state
transitions for the TLS state machine. If a remote attacker were able to
perform a machine-in-the-middle attack, this flaw could be exploited to skip
the ServerKeyExchange message and remove the forward-secrecy property.
(CVE-2015-2721)

Bob Clary, Christian Holler, Bobby Holley, and Andrew McCreight discovered
multiple memory safety issues in Thunderbird. If a user were tricked in to
opening a specially crafted website in a browsing context, an attacker
could potentially exploit these to cause a denial of service via
application crash, or execute arbitrary code with the privileges of the
user invoking Thunderbird. (CVE-2015-2724)

Ronald Crane discovered multiple security vulnerabilities. If a user were
tricked in to opening a specially crafted website in a browsing context,
an attacker could potentially exploit these to cause a denial of service
via application crash, or execute arbitrary code with the privileges of
the user invoking Thunderbird. (CVE-2015-2734, CVE-2015-2735,
CVE-2015-2736, CVE-2015-2737, CVE-2015-2738, CVE-2015-2739, CVE-2015-2740)

Matthew Green discovered a DHE key processing issue in NSS where a MITM
could force a server to downgrade TLS connections to 512-bit export-grade
cryptography. An attacker could potentially exploit this to impersonate
the server. (CVE-2015-4000)

Fixed packages 1

ReleasePackageFixed in
Ubuntu · 14.04 LTS 14.04:LTS thunderbird 1:31.8.0+build1-0ubuntu0.14.04.1

Vulnerabilities 10

References

  • report
    https://ubuntu.com/security/CVE-2015-2721
  • report
    https://ubuntu.com/security/CVE-2015-2724
  • report
    https://ubuntu.com/security/CVE-2015-2734
  • report
    https://ubuntu.com/security/CVE-2015-2735
  • report
    https://ubuntu.com/security/CVE-2015-2736
  • report
    https://ubuntu.com/security/CVE-2015-2737
  • report
    https://ubuntu.com/security/CVE-2015-2738
  • report
    https://ubuntu.com/security/CVE-2015-2739
  • report
    https://ubuntu.com/security/CVE-2015-2740
  • report
    https://ubuntu.com/security/CVE-2015-4000