USN-3897-1: Thunderbird vulnerabilities

Releases

• Ubuntu 18.10
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• thunderbird - Mozilla Open Source mail and newsgroup client

Details

A use-after-free was discovered in libical. If a user were tricked in to
opening a specially crafted ICS calendar file, an attacker could
potentially exploit this to cause a denial of service. (CVE-2016-5824)

Multiple security issues were discovered 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, or execute
arbitrary code. (CVE-2018-18356, CVE-2018-18500, CVE-2019-5785)

Multiple security issues were discovered 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,
gain additional privileges by escaping the sandbox, or execute arbitrary
code. (CVE-2018-18501, CVE-2018-18505)

An issue was discovered with S/MIME signature verification in some
circumstances. An attacker could potentially exploit this by spoofing
signatures for arbitrary content. (CVE-2018-18509)

Update instructions

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

Ubuntu 18.10

• thunderbird - 1:60.5.1+build2-0ubuntu0.18.10.1

Ubuntu 18.04

• thunderbird - 1:60.5.1+build2-0ubuntu0.18.04.1

Ubuntu 16.04

• thunderbird - 1:60.5.1+build2-0ubuntu0.16.04.1

Ubuntu 14.04

• thunderbird - 1:60.5.1+build2-0ubuntu0.14.04.1

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

References

• CVE-2016-5824
• CVE-2018-18356
• CVE-2018-18500
• CVE-2018-18501
• CVE-2018-18505
• CVE-2018-18509
• CVE-2019-5785

Related notices

• USN-3896-1
• USN-3874-1