CVE-2023-33285 Memory corruption in n/a
A buffer over-read in Qt's QDnsLookup allows attackers to cause denial of service via crafted DNS replies.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-33285?
CVE-2023-33285 is a medium-severity memory corruption vulnerability in Qt Qt, published on 22 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in Qt 5.x before 5.15.14, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. QDnsLookup has a buffer over-read via a crafted reply from a DNS server.
Weakness: CWE-125
Which versions are affected by CVE-2023-33285?
It affects 1 product.
Linux distribution packages (1)
qt6-base openSUSE:Tumbleweed | All versions | 6.6.0-3.1 |
Products include Qt Qt.
How do I fix CVE-2023-33285?
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-2023-33285 being exploited?
There is no known exploitation of CVE-2023-33285 in the wild and no public exploit code.
Other vulnerabilities in Qt Qt
Sources
Also known as AZL-26943, DEBIAN-CVE-2023-33285, GHSA-pwf5-mq6w-f36v, OESA-2023-1791, UBUNTU-CVE-2023-33285, openSUSE-SU-2024:13380-1.