USN-3997-1: Thunderbird vulnerabilities
28 May 2019
Several security issues were fixed in Thunderbird.
Releases
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 context,
an attacker could potentially exploit these to cause a denial of service,
bypass same-origin protections, or execute arbitrary code.
(CVE-2019-18511, CVE-2019-11691, CVE-2019-11692, CVE-2019-11693,
CVE-2019-9797, CVE-2019-9800, CVE-2019-9817, CVE-2019-9819, CVE-2019-9820)
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-2019-5798, CVE-2019-7317)
A type confusion bug was discovered with object groups and UnboxedObjects.
If a user were tricked in to opening a specially crafted website in a
browsing context after enabling the UnboxedObjects feature, an attacker
could potentially exploit this to bypass security checks. (CVE-2019-9816)
It was discovered that history data could be exposed via drag and drop
of hyperlinks to and from bookmarks. If a user were tricked in to dragging
a specially crafted hyperlink to a bookmark toolbar or sidebar, and
subsequently back in to the web content area, an attacker could
potentially exploit this to obtain sensitive information. (CVE-2019-11698)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 19.04
Ubuntu 18.10
Ubuntu 18.04
Ubuntu 16.04
After a standard system update you need to restart Thunderbird to make
all the necessary changes.