CVE-2023-6481 Logback "receiver" DOS vulnerability CVE-2023-6378 incomplete fix
An attacker can cause a denial of service in Logback by sending poisoned data to the receiver component, requiring the receiver feature to be enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-6481?
CVE-2023-6481 is a high-severity unsafe deserialization vulnerability in QOS.CH Sarl logback, published on 4 Dec 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A serialization vulnerability in logback receiver component part of logback version 1.4.13, 1.3.13 and 1.2.12 allows an attacker to mount a Denial-Of-Service attack by sending poisoned data.
Which versions are affected by CVE-2023-6481?
6 open source packages ship an affected version, including ch.qos.logback:logback-core. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
ch.qos.logback:logback-core Maven | From 1.2.12 | 1.2.13 |
ch.qos.logback:logback-core Maven | From 1.2.12 | 1.2.13 |
ch.qos.logback:logback-core Maven | From 1.3.13 | 1.3.14 |
ch.qos.logback:logback-core Maven | From 1.3.13 | 1.3.14 |
ch.qos.logback:logback-core Maven | From 1.4.13 | 1.4.14 |
ch.qos.logback:logback-core Maven | From 1.4.13 | 1.4.14 |
Products include Qos Logback.
How do I fix CVE-2023-6481?
Upgrade ch.qos.logback:logback-core to a fixed version for your release line: 1.2.13, 1.3.14 or 1.4.14.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2023-6481 being exploited?
There is no known exploitation of CVE-2023-6481 in the wild and no public exploit code.
Other vulnerabilities in QOS.CH Sarl logback
Sources
Also known as GHSA-gm62-rw4g-vrc4, MINI-4v49-5jpg-fqj8.