CVE-2018-5127 Memory corruption in Firefox
A buffer overflow in SVG handling allows attackers to cause a crash or potentially execute arbitrary code via malicious scripts.
- 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-2018-5127?
CVE-2018-5127 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 11 Jun 2018. 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
A buffer overflow can occur when manipulating the SVG "animatedPathSegList" through script. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.7, Firefox ESR < 52.7, and Firefox < 59.
Weakness: CWE-119
Which versions are affected by CVE-2018-5127?
It affects 9 products.
Products include Canonical Ubuntu Linux, Debian Debian Linux, Mozilla Firefox, Mozilla Thunderbird, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server and 3 more.
How do I fix CVE-2018-5127?
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-2018-5127 being exploited?
There is no known exploitation of CVE-2018-5127 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2018-5127, GHSA-669j-hvf3-2f28, UBUNTU-CVE-2018-5127.