CVE-2021-27804 Memory corruption in n/a

What is CVE-2021-27804?

CVE-2021-27804 is a critical memory corruption vulnerability in n/a, published on 2 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

JPEG XL (aka jpeg-xl) through 0.3.2 allows writable memory corruption.

Weakness: CWE-787

Which versions are affected by CVE-2021-27804?

It affects 1 product.

Products include Libjxl Project Libjxl.

How do I fix CVE-2021-27804?

No fix has been published for CVE-2021-27804 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-2021-27804 being exploited?

There is no known exploitation of CVE-2021-27804 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2026-1837 libjxl: Out-of-bounds write in grayscale color transformation when using LCMS2 High 8.7
• CVE-2023-35790 Integer overflow in n/a High 7.5
• CVE-2021-36691 Denial of service in n/a High 7.5
• CVE-2024-11403 Out of Bounds Memory Read/Write in libjxl Medium 6.9
• CVE-2024-11498 Resource exhaustion via Stack overflow in libjxl Medium 6.9

Sources

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

Also known as GHSA-6qm8-hwqx-wv6m.