USN-3436-1: Thunderbird vulnerabilities

Releases

• Ubuntu 17.04
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• thunderbird - Mozilla Open Source mail and newsgroup client

Details

Multiple security issues were discovered in Thunderbird. If a user were
tricked in to opening a specially crafted website in a browsing-like
context, an attacker could potentially exploit these to read uninitialized
memory, bypass phishing and malware protection, conduct cross-site
scripting (XSS) attacks, cause a denial of service via application crash,
or execute arbitrary code. (CVE-2017-7793, CVE-2017-7810, CVE-2017-7814,
CVE-2017-7818, CVE-2017-7819, CVE-2017-7823, CVE-2017-7824)

Martin Thomson discovered that NSS incorrectly generated handshake hashes.
A remote attacker could potentially exploit this to cause a denial of
service via application crash, or execute arbitrary code. (CVE-2017-7805)

Update instructions

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

Ubuntu 17.04

• thunderbird - 1:52.4.0+build1-0ubuntu0.17.04.2

Ubuntu 16.04

• thunderbird - 1:52.4.0+build1-0ubuntu0.16.04.2

Ubuntu 14.04

• thunderbird - 1:52.4.0+build1-0ubuntu0.14.04.2

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

References

• CVE-2017-7793
• CVE-2017-7805
• CVE-2017-7810
• CVE-2017-7814
• CVE-2017-7818
• CVE-2017-7819
• CVE-2017-7823
• CVE-2017-7824

Related notices

• USN-3435-1
• USN-3431-1
• USN-3688-1