CVE-2016-1974 Memory corruption in n/a

What is CVE-2016-1974?

CVE-2016-1974 is a high-severity memory corruption vulnerability in Mozilla Firefox, published on 13 Mar 2016. 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

The nsScannerString::AppendUnicodeTo function in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7 does not verify that memory allocation succeeds, which allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds read) via crafted Unicode data in an HTML, XML, or SVG document.

Weakness: CWE-119

Which versions are affected by CVE-2016-1974?

It affects 6 products.

Products include Mozilla Firefox, Mozilla Thunderbird, Opensuse Leap, Opensuse Opensuse, Oracle Linux, Suse Linux Enterprise.

How do I fix CVE-2016-1974?

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-2016-1974 being exploited?

There is no known exploitation of CVE-2016-1974 in the wild and no public exploit code.

Other vulnerabilities in Mozilla Firefox

• CVE-2019-11708 Mozilla Firefox and Thunderbird Sandbox Escape Exploited Critical 10.0
• CVE-2010-3765 Mozilla Multiple Products Remote Code Execution Exploited Critical 9.8
• CVE-2022-26486 Mozilla Firefox Use-After-Free Exploited Critical 9.6
• CVE-2022-26485 Mozilla Firefox Use-After-Free Exploited High 8.8
• CVE-2019-11707 Mozilla Firefox and Thunderbird Type Confusion Exploited High 8.8

All Mozilla Firefox vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2016-1974, GHSA-4hhc-jf2p-xq5p, UBUNTU-CVE-2016-1974.