CVE-2020-12267 Use after free in n/a
A use-after-free vulnerability in Qt's markdown importer allows attackers to execute arbitrary code or cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-12267?
CVE-2020-12267 is a critical use after free vulnerability in Qt Qt, published on 27 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
setMarkdown in Qt before 5.14.2 has a use-after-free related to QTextMarkdownImporter::insertBlock.
Weakness: CWE-416
Which versions are affected by CVE-2020-12267?
It affects 1 product.
Products include Qt Qt.
How do I fix CVE-2020-12267?
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-2020-12267 being exploited?
There is no known exploitation of CVE-2020-12267 in the wild and no public exploit code.
Other vulnerabilities in Qt Qt
Sources
Also known as GHSA-96rj-cc48-wqpc.