CVE-2010-0166 Memory corruption in n/a

What is CVE-2010-0166?

CVE-2010-0166 is a medium-severity memory corruption vulnerability in Mozilla Firefox, published on 25 Mar 2010. 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 gfxTextRun::SanitizeGlyphRuns function in gfx/thebes/src/gfxFont.cpp in the browser engine in Mozilla Firefox 3.6 before 3.6.2 on Mac OS X, when the Core Text API is used, does not properly perform certain deletions, which allows remote attackers to cause a denial of service (memory corruption and application crash) and possibly execute arbitrary code via an HTML document containing invisible Unicode characters, as demonstrated by the U+FEFF, U+FFF9, U+FFFA, and U+FFFB characters.

Weakness: CWE-119

Which versions are affected by CVE-2010-0166?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2010-0166?

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-2010-0166 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2010-0166 exists.

Public exploit code: 1 Exploit-DB entry.

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 GHSA-g5x4-8v96-9hwx.