CVE-2018-18513 Null dereference in Thunderbird
Attackers can cause a persistent denial-of-service in Thunderbird by sending crafted S/MIME messages or XPI packages that trigger a crash on restart.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-18513?
CVE-2018-18513 is a high-severity vulnerability in Mozilla Thunderbird, published on 26 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A crash can occur when processing a crafted S/MIME message or an XPI package containing a crafted signature. This can be used as a denial-of-service (DOS) attack because Thunderbird reopens the last seen message on restart, triggering the crash again. This vulnerability affects Thunderbird < 60.5.
Weakness: CWE-476
Which versions are affected by CVE-2018-18513?
It affects 1 product.
Products include Mozilla Thunderbird.
How do I fix CVE-2018-18513?
Upgrade to a fixed version.
Is CVE-2018-18513 being exploited?
There is no known exploitation of CVE-2018-18513 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Thunderbird
Sources
Also known as DEBIAN-CVE-2018-18513, GHSA-5wmq-rgwc-2fgc.