CVE-2017-5436 Memory corruption in Firefox
An out-of-bounds write in the Graphite 2 library allows attackers to execute arbitrary code or cause a crash via a malicious font.
- 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-2017-5436?
CVE-2017-5436 is a high-severity memory corruption vulnerability in Debian Debian 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
An out-of-bounds write in the Graphite 2 library triggered with a maliciously crafted Graphite font. This results in a potentially exploitable crash. This issue was fixed in the Graphite 2 library as well as Mozilla products. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.
Weakness: CWE-787
Which versions are affected by CVE-2017-5436?
It affects 10 products.
Linux distribution packages (11)
graphite2 Red Hat:hummingbird:1 | All versions | 0:1.3.14-20.1.hum1 |
graphite2-devel Red Hat:hummingbird:1 | All versions | 0:1.3.14-20.1.hum1 |
graphite2 SUSE:Linux Enterprise Desktop 12 SP1 | All versions | 1.3.1-9.1 |
graphite2 SUSE:Linux Enterprise Desktop 12 SP2 | All versions | 1.3.1-9.1 |
graphite2 SUSE:Linux Enterprise Server 12 SP1 | All versions | 1.3.1-9.1 |
graphite2 SUSE:Linux Enterprise Server 12 SP2 | All versions | 1.3.1-9.1 |
graphite2 SUSE:Linux Enterprise Server for Raspberry Pi 12 SP2 | All versions | 1.3.1-9.1 |
graphite2 SUSE:Linux Enterprise Server for SAP Applications 12 SP1 | All versions | 1.3.1-9.1 |
graphite2 SUSE:Linux Enterprise Server for SAP Applications 12 SP2 | All versions | 1.3.1-9.1 |
graphite2 SUSE:Linux Enterprise Software Development Kit 12 SP1 | All versions | 1.3.1-9.1 |
graphite2 SUSE:Linux Enterprise Software Development Kit 12 SP2 | All versions | 1.3.1-9.1 |
Products include Debian Debian Linux, Mozilla Firefox, Mozilla Thunderbird, Redhat Enterprise Linux, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server and 4 more.
How do I fix CVE-2017-5436?
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-2017-5436 being exploited?
There is no known exploitation of CVE-2017-5436 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2017-5436, GHSA-7cg6-cw82-vmx2, RHSA-2026:7361, SUSE-SU-2017:1149-1, UBUNTU-CVE-2017-5436.