CVE-2018-5968 Deserialization of Untrusted Data in jackson-databind
Unauthenticated remote attackers can execute arbitrary code via unsafe deserialization in jackson-databind, bypassing previous blacklist fixes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-5968?
CVE-2018-5968 is a high-severity unsafe deserialization vulnerability in Debian Debian Linux, published on 22 Jan 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
FasterXML jackson-databind through 2.8.11 and 2.9.x through 2.9.3 allows unauthenticated remote code execution because of an incomplete fix for the CVE-2017-7525 and CVE-2017-17485 deserialization flaws. This is exploitable via two different gadgets that bypass a blacklist.
Which versions are affected by CVE-2018-5968?
6 open source packages ship an affected version, including com.fasterxml.jackson.core:jackson-databind. It affects 9 products.
| Package | Affected | Fixed in |
|---|---|---|
com.fasterxml.jackson.core:jackson-databind Maven | All versions | 2.7.9.5 |
com.fasterxml.jackson.core:jackson-databind Maven | All versions | 2.7.9.5 |
com.fasterxml.jackson.core:jackson-databind Maven | From 2.8.0 | 2.8.11.1 |
com.fasterxml.jackson.core:jackson-databind Maven | From 2.8.0 | 2.8.11.1 |
com.fasterxml.jackson.core:jackson-databind Maven | From 2.9.0 | 2.9.4 |
com.fasterxml.jackson.core:jackson-databind Maven | From 2.9.0 | 2.9.4 |
Products include Debian Debian Linux, Fasterxml Jackson-Databind, Netapp E-Series Santricity Os Controller, Netapp E-Series Santricity Web Services Proxy, Netapp Oncommand Shift, Redhat Jboss Enterprise Application Platform and 3 more.
How do I fix CVE-2018-5968?
Upgrade com.fasterxml.jackson.core:jackson-databind to a fixed version for your release line: 2.7.9.5, 2.8.11.1 or 2.9.4.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2018-5968 being exploited?
There is no known exploitation of CVE-2018-5968 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as CLEANSTART-2026-JL35861, DEBIAN-CVE-2018-5968, GHSA-w3f4-3q6j-rh82, ROOT-APP-MAVEN-CVE-2018-5968, UBUNTU-CVE-2018-5968.