➠ USN-2934-1: Thunderbird vulnerabilities

Ubuntu Security Notice USN-2934-1

27th April, 2016

thunderbird vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 16.04 LTS
• Ubuntu 15.10
• Ubuntu 14.04 LTS
• Ubuntu 12.04 LTS

Summary

Several security issues were fixed in Thunderbird.

Software description

• thunderbird - Mozilla Open Source mail and newsgroup client

Details

Bob Clary, Christoph Diehl, Christian Holler, Andrew McCreight, Daniel
Holbert, Jesse Ruderman, and Randell Jesup discovered multiple memory
safety issues in Thunderbird. If a user were tricked in to opening a
specially crafted message, 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-2016-1952)

Nicolas Golubovic discovered that CSP violation reports can be used to
overwrite local files. If a user were tricked in to opening a specially
crafted website in a browsing context with addon signing disabled and
unpacked addons installed, an attacker could potentially exploit this to
gain additional privileges. (CVE-2016-1954)

Jose Martinez and Romina Santillan discovered a memory leak in
libstagefright during MPEG4 video file processing in some circumstances.
If a user were tricked in to opening a specially crafted website in a
browsing context, an attacker could potentially exploit this to cause a
denial of service via memory exhaustion. (CVE-2016-1957)

A use-after-free was discovered in the HTML5 string parser. If a user were
tricked in to opening a specially crafted website in a browsing context, an
attacker could potentially exploit this to cause a denial of service via
application crash, or execute arbitrary code with the privileges of the user
invoking Thunderbird. (CVE-2016-1960)

A use-after-free was discovered in the SetBody function of HTMLDocument.
If a user were tricked in to opening a specially crafted website in a
browsing context, an attacker could potentially exploit this to cause a
denial of service via application crash, or execute arbitrary code with
the privileges of the user invoking Thunderbird. (CVE-2016-1961)

Nicolas Grégoire discovered a use-after-free during XML transformations.
If a user were tricked in to opening a specially crafted website in a
browsing context, an attacker could potentially exploit this to cause a
denial of service via application crash, or execute arbitrary code with
the privileges of the user invoking Thunderbird. (CVE-2016-1964)

A memory corruption issues was discovered in the NPAPI subsystem. If
a user were tricked in to opening a specially crafted website in a
browsing context with a malicious plugin installed, an attacker could
potentially exploit this to cause a denial of service via application
crash, or execute arbitrary code with the privileges of the user invoking
Thunderbird. (CVE-2016-1966)

Ronald Crane discovered an out-of-bounds read following a failed
allocation in the HTML parser in some circumstances. If a user were
tricked in to opening a specially crafted website in a browsing context,
an attacker could potentially exploit this to cause a denial of service
via application crash, or execute arbitrary code with the privileges of
the user invoking Thunderbird. (CVE-2016-1974)

Francis Gabriel discovered a buffer overflow during ASN.1 decoding in NSS.
A remote attacker could potentially exploit this to cause a denial of
service via application crash, or execute arbitrary code with the
privileges of the user invoking Thunderbird. (CVE-2016-1950)

Holger Fuhrmannek, Tyson Smith and Holger Fuhrmannek reported multiple
memory safety issues in the Graphite 2 library. If a user were tricked in
to opening a specially crafted message, 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-2016-1977, CVE-2016-2790, CVE-2016-2791, CVE-2016-2792,
CVE-2016-2793, CVE-2016-2794, CVE-2016-2795, CVE-2016-2796, CVE-2016-2797,
CVE-2016-2798, CVE-2016-2799, CVE-2016-2800, CVE-2016-2801, CVE-2016-2802)

Update instructions

The problem can be corrected by updating your system to the following package version:

Ubuntu 16.04 LTS:

thunderbird 1:38.7.2+build1-0ubuntu0.16.04.1

Ubuntu 15.10:

thunderbird 1:38.7.2+build1-0ubuntu0.15.10.1

Ubuntu 14.04 LTS:

thunderbird 1:38.7.2+build1-0ubuntu0.14.04.1

Ubuntu 12.04 LTS:

thunderbird 1:38.7.2+build1-0ubuntu0.12.04.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to restart Thunderbird to make
all the necessary changes.

References

CVE-2016-1950, CVE-2016-1952, CVE-2016-1954, CVE-2016-1957, CVE-2016-1960, CVE-2016-1961, CVE-2016-1964, CVE-2016-1966, CVE-2016-1974, CVE-2016-1977, CVE-2016-2790, CVE-2016-2791, CVE-2016-2792, CVE-2016-2793, CVE-2016-2794, CVE-2016-2795, CVE-2016-2796, CVE-2016-2797, CVE-2016-2798, CVE-2016-2799, CVE-2016-2800, CVE-2016-2801, CVE-2016-2802