CVE & CISA-KEV Catalog

CVE-2020-2756

LOWEPSS 90th pctl
3.7
CVSS v3
NVD

Description

Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE (component: Serialization). Supported versions that are affected are Java SE: 7u251, 8u241, 11.0.6 and 14; Java SE Embedded: 8u241. 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 3.0 Base Score 3.7 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L).

CWE-502Deserialization of Untrusted DataCWE-755

How to fix

Remediation Available
openjdk-11Debian
Fixed in:11.0.7+10-1CVE-2020-2756
Fixed in:11.0.7+10-1CVE-2020-2756
openjdk-11-jdkUbuntu
Fixed in:11.0.7+10-2ubuntu2~18.04USN-4337-1
openjdk-11-jreUbuntu
Fixed in:11.0.7+10-2ubuntu2~18.04USN-4337-1
openjdk-11-jre-headlessUbuntu
Fixed in:11.0.7+10-2ubuntu2~18.04USN-4337-1
openjdk-11-jre-zeroUbuntu
Fixed in:11.0.7+10-2ubuntu2~18.04USN-4337-1
openjdk-8Ubuntu
Fixed in:8u252-b09-1~16.04USN-4337-1
Fixed in:8u252-b09-1~18.04USN-4337-1
openjdk-8-jdkUbuntu
Fixed in:8u252-b09-1~16.04USN-4337-1
Fixed in:8u252-b09-1~18.04USN-4337-1
openjdk-8-jreUbuntu
Fixed in:8u252-b09-1~16.04USN-4337-1
Fixed in:8u252-b09-1~18.04USN-4337-1
openjdk-8-jre-headlessUbuntu
Fixed in:8u252-b09-1~16.04USN-4337-1
Fixed in:8u252-b09-1~18.04USN-4337-1
openjdk-8-jre-jamvmUbuntu
Fixed in:8u252-b09-1~16.04USN-4337-1
openjdk-8-jre-zeroUbuntu
Fixed in:8u252-b09-1~16.04USN-4337-1
Fixed in:8u252-b09-1~18.04USN-4337-1
openjdk-ltsUbuntu
Fixed in:11.0.7+10-2ubuntu2~18.04USN-4337-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityLow

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploit Intelligence

4.21%probability of exploitation in 30 days
90thpercentile

Elevated risk: more likely to be exploited than 90% of all known CVEs.

References

Vendor Advisory1
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CVE-2020-2756 severity badge

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.