CVE-2018-12385 Denial of service in Firefox
An attacker with local access or malware can trigger a crash in Firefox or Thunderbird by manipulating the local SSL cache, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-12385?
CVE-2018-12385 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 18 Oct 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A potentially exploitable crash in TransportSecurityInfo used for SSL can be triggered by data stored in the local cache in the user profile directory. This issue is only exploitable in combination with another vulnerability allowing an attacker to write data into the local cache or from locally installed malware. This issue also triggers a non-exploitable startup crash for users switching between the Nightly and Release versions of Firefox if the same profile is used. This vulnerability affects Thunderbird < 60.2.1, Firefox ESR < 60.2.1, and Firefox < 62.0.2.
Weakness: CWE-20
Which versions are affected by CVE-2018-12385?
It affects 11 products.
Products include Canonical Ubuntu Linux, Debian Debian Linux, Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird, Redhat Enterprise Linux Desktop and 5 more.
How do I fix CVE-2018-12385?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2018-12385 being exploited?
There is no known exploitation of CVE-2018-12385 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2018-12385, GHSA-w434-f353-fv6q, UBUNTU-CVE-2018-12385.