CVE-2018-4257 Memory corruption in n/a

What is CVE-2018-4257?

CVE-2018-4257 is a critical memory corruption vulnerability in Apple Mac Os X, published on 11 Jan 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In macOS High Sierra before 10.13.5, a buffer overflow was addressed with improved size validation.

Weakness: CWE-119

Which versions are affected by CVE-2018-4257?

It affects 1 product.

Products include Apple Mac Os X.

How do I fix CVE-2018-4257?

No fix has been published for CVE-2018-4257 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2018-4257 being exploited?

There is no known exploitation of CVE-2018-4257 in the wild and no public exploit code.

Other vulnerabilities in Apple Mac Os X

• CVE-2014-7169 GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Exploited Critical 9.8
• CVE-2014-6271 GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Exploited Critical 9.8
• CVE-2012-1823 PHP-CGI Query String Parameter Exploited Critical 9.8
• CVE-2021-30713 Apple macOS Unspecified Exploited High 7.8
• CVE-2019-8526 Apple macOS Use-After-Free Exploited High 7.8

All Apple Mac Os X vulnerabilities

Sources

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

Also known as GHSA-wvmc-f227-wm5v.