CVE-2015-6778 Memory corruption in n/a

What is CVE-2015-6778?

CVE-2015-6778 is a high-severity memory corruption vulnerability in Google Chrome, published on 6 Dec 2015. 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 CJBig2_SymbolDict class in fxcodec/jbig2/JBig2_SymbolDict.cpp in PDFium, as used in Google Chrome before 47.0.2526.73, allows remote attackers to cause a denial of service (out-of-bounds memory access) or possibly have unspecified other impact via a PDF document containing crafted data with JBIG2 compression.

Weakness: CWE-119

Which versions are affected by CVE-2015-6778?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2015-6778?

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-2015-6778 being exploited?

There is no known exploitation of CVE-2015-6778 in the wild and no public exploit code.

Other vulnerabilities in Google Chrome

• CVE-2022-4135 Google Chromium GPU Heap Buffer Overflow Exploited Critical 9.6
• CVE-2020-16017 Google Chrome Use-After-Free Exploited Critical 9.6
• CVE-2020-16010 Google Chrome for Android UI Heap Buffer Overflow Exploited Critical 9.6
• CVE-2026-87491 Google Chromium V8 Out of Bounds Write Exploited High 8.8
• CVE-2026-85046 Google Chromium V8 Type Confusion Exploited High 8.8

All Google Chrome vulnerabilities

Sources

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

Also known as GHSA-g2cv-288r-rh4q, UBUNTU-CVE-2015-6778.