CVE-2020-14779 Denial of service in Java SE JDK and JRE
An unauthenticated attacker can cause a partial denial of service in Java SE via the Serialization component.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-14779?
CVE-2020-14779 is a low-severity denial of service vulnerability in Debian Debian Linux, published on 21 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE (component: Serialization). Supported versions that are affected are Java SE: 7u271, 8u261, 11.0.8 and 15; Java SE Embedded: 8u261. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE, Java SE Embedded. Note: Applies to client and server deployment of Java. This vulnerability can be exploited through sandboxed Java Web Start applications and sandboxed Java applets. It can also be exploited by supplying data to APIs in the specified Component without using sandboxed Java Web Start applications or sandboxed Java applets, such as through a web service. CVSS 3.1 Base Score 3.7 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).
Which versions are affected by CVE-2020-14779?
3 open source packages ship an affected version, including java, java-min and jre. It affects 19 products.
| Package | Affected | Fixed in |
|---|---|---|
java Bitnami | All versions | 1.7.0, 1.8.0, 7.0.281, 8.0.271, 11.0.9, 15.0.1 |
java-min Bitnami | All versions | 1.7.0, 1.8.0, 7.0.281, 8.0.271, 11.0.9, 15.0.1 |
jre Bitnami | All versions | 1.7.0, 1.8.0, 7.0.281, 8.0.271, 11.0.9, 15.0.1 |
Products include Debian Debian Linux, Fedoraproject Fedora, Netapp 7-Mode Transition Tool, Netapp Active Iq Unified Manager, Netapp E-Series Santricity Os Controller, Netapp E-Series Santricity Storage Manager and 13 more.
How do I fix CVE-2020-14779?
Upgrade java to a fixed version for your release line: 1.7.0, 1.8.0, 7.0.281 or 8.0.271.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-14779 being exploited?
There is no known exploitation of CVE-2020-14779 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as BIT-java-2020-14779, BIT-java-min-2020-14779, BIT-jre-2020-14779, CLEANSTART-2026-HN26495, CLEANSTART-2026-JU50963, DEBIAN-CVE-2020-14779 and 8 more.