CVE-2019-11042 heap-buffer-overflow on exif_process_user_comment in EXIF extension

What is CVE-2019-11042?

CVE-2019-11042 is a medium-severity memory corruption vulnerability in Apple Mac Os X, published on 9 Aug 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

When PHP EXIF extension is parsing EXIF information from an image, e.g. via exif_read_data() function, in PHP versions 7.1.x below 7.1.31, 7.2.x below 7.2.21 and 7.3.x below 7.3.8 it is possible to supply it with data what will cause it to read past the allocated buffer. This may lead to information disclosure or crash.

Weakness: CWE-125

Which versions are affected by CVE-2019-11042?

It affects 7 products.

Products include Apple Mac Os X, Canonical Ubuntu Linux, Debian Debian Linux, Opensuse Leap, Php Php, Redhat Software Collections and 1 more.

How do I fix CVE-2019-11042?

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-2019-11042 being exploited?

There is no known exploitation of CVE-2019-11042 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-pg67-q5vx-48xq, UBUNTU-CVE-2019-11042.