CVE-2009-1721 Use after free in n/a

What is CVE-2009-1721?

CVE-2009-1721 is a medium-severity use after free vulnerability in Apple Mac Os X, published on 31 Jul 2009. 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 decompression implementation in the Imf::hufUncompress function in OpenEXR 1.2.2 and 1.6.1 allows context-dependent attackers to cause a denial of service (application crash) or possibly execute arbitrary code via vectors that trigger a free of an uninitialized pointer.

Weakness: CWE-824

Which versions are affected by CVE-2009-1721?

It affects 6 products.

Products include Apple Mac Os X, Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Openexr Openexr, Opensuse Opensuse.

How do I fix CVE-2009-1721?

Upgrade to a fixed version.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2009-1721 being exploited?

There is no known exploitation of CVE-2009-1721 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 DEBIAN-CVE-2009-1721, GHSA-wrhp-5vcr-45pg.