CVE-2019-17015 Memory corruption in Firefox
Manipulating a pointer offset during content process initialization causes memory corruption in the parent process, potentially allowing code execution or crashes on Windows.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2019-17015?
CVE-2019-17015 is a high-severity memory corruption vulnerability in Mozilla Firefox, published on 8 Jan 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
During the initialization of a new content process, a pointer offset can be manipulated leading to memory corruption and a potentially exploitable crash in the parent process. *Note: this issue only occurs on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.
Weakness: CWE-787
Which versions are affected by CVE-2019-17015?
It affects 2 products.
Products include Mozilla Firefox, Mozilla Firefox Esr.
How do I fix CVE-2019-17015?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2019-17015 being exploited?
There is no known exploitation of CVE-2019-17015 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as GHSA-6jgc-63f5-7hch, UBUNTU-CVE-2019-17015.