medium
4.3
CWE
502 755 248
Advisory Published
CVE Published
CVE Published
Updated

CVE-2020-2756

First published: Sun Apr 12 2020(Updated: )

A flaw was found in the Serialization component of OpenJDK. A reference to an uninitialized class descriptor encountered during object stream deserialization could cause an unexpected exception to be raised when processing an untrusted serialized input.

Credit: secalert_us@oracle.com secalert_us@oracle.com

Affected SoftwareAffected VersionHow to fix
redhat/java<1.8.0-openjdk-1:1.8.0.252.b09-2.el6_10
1.8.0-openjdk-1:1.8.0.252.b09-2.el6_10
redhat/java<1.7.0-openjdk-1:1.7.0.261-2.6.22.1.el6_10
1.7.0-openjdk-1:1.7.0.261-2.6.22.1.el6_10
redhat/java<1.7.1-ibm-1:1.7.1.4.65-1jpp.1.el6_10
1.7.1-ibm-1:1.7.1.4.65-1jpp.1.el6_10
redhat/java<1.8.0-ibm-1:1.8.0.6.10-1jpp.1.el6_10
1.8.0-ibm-1:1.8.0.6.10-1jpp.1.el6_10
redhat/java<1.7.0-openjdk-1:1.7.0.261-2.6.22.2.el7_8
1.7.0-openjdk-1:1.7.0.261-2.6.22.2.el7_8
redhat/java<11-openjdk-1:11.0.7.10-4.el7_8
11-openjdk-1:11.0.7.10-4.el7_8
redhat/java<1.8.0-openjdk-1:1.8.0.252.b09-2.el7_8
1.8.0-openjdk-1:1.8.0.252.b09-2.el7_8
redhat/java<1.8.0-ibm-1:1.8.0.6.10-1jpp.1.el7
1.8.0-ibm-1:1.8.0.6.10-1jpp.1.el7
redhat/java<1.7.1-ibm-1:1.7.1.4.65-1jpp.1.el7
1.7.1-ibm-1:1.7.1.4.65-1jpp.1.el7
redhat/java<11-openjdk-1:11.0.7.10-1.el8_1
11-openjdk-1:11.0.7.10-1.el8_1
redhat/java<1.8.0-openjdk-1:1.8.0.252.b09-2.el8_1
1.8.0-openjdk-1:1.8.0.252.b09-2.el8_1
redhat/java<1.8.0-ibm-1:1.8.0.6.10-1.el8_2
1.8.0-ibm-1:1.8.0.6.10-1.el8_2
redhat/java<1.8.0-openjdk-1:1.8.0.252.b09-2.el8_0
1.8.0-openjdk-1:1.8.0.252.b09-2.el8_0
redhat/java<11-openjdk-1:11.0.7.10-1.el8_0
11-openjdk-1:11.0.7.10-1.el8_0
Oracle JDK=1.7.0-update251
Oracle JDK=1.8.0-update241
Oracle JDK=11.0.6
Oracle JDK=14.0.0
Oracle JRE=1.7.0-update251
Oracle JRE=1.8.0-update241
Oracle JRE=11.0.6
Oracle JRE=14.0.0
Oracle OpenJDK>=11<=11.0.6
Oracle OpenJDK>=13<=13.0.2
Oracle OpenJDK=7
Oracle OpenJDK=7-update1
Oracle OpenJDK=7-update10
Oracle OpenJDK=7-update101
Oracle OpenJDK=7-update11
Oracle OpenJDK=7-update111
Oracle OpenJDK=7-update121
Oracle OpenJDK=7-update13
Oracle OpenJDK=7-update131
Oracle OpenJDK=7-update141
Oracle OpenJDK=7-update15
Oracle OpenJDK=7-update151
Oracle OpenJDK=7-update161
Oracle OpenJDK=7-update17
Oracle OpenJDK=7-update171
Oracle OpenJDK=7-update181
Oracle OpenJDK=7-update191
Oracle OpenJDK=7-update2
Oracle OpenJDK=7-update201
Oracle OpenJDK=7-update21
Oracle OpenJDK=7-update211
Oracle OpenJDK=7-update221
Oracle OpenJDK=7-update231
Oracle OpenJDK=7-update241
Oracle OpenJDK=7-update25
Oracle OpenJDK=7-update251
Oracle OpenJDK=7-update3
Oracle OpenJDK=7-update4
Oracle OpenJDK=7-update40
Oracle OpenJDK=7-update45
Oracle OpenJDK=7-update5
Oracle OpenJDK=7-update51
Oracle OpenJDK=7-update55
Oracle OpenJDK=7-update6
Oracle OpenJDK=7-update60
Oracle OpenJDK=7-update65
Oracle OpenJDK=7-update67
Oracle OpenJDK=7-update7
Oracle OpenJDK=7-update72
Oracle OpenJDK=7-update76
Oracle OpenJDK=7-update80
Oracle OpenJDK=7-update85
Oracle OpenJDK=7-update9
Oracle OpenJDK=7-update91
Oracle OpenJDK=7-update95
Oracle OpenJDK=7-update97
Oracle OpenJDK=7-update99
Oracle OpenJDK=8
Oracle OpenJDK=8-update101
Oracle OpenJDK=8-update102
Oracle OpenJDK=8-update11
Oracle OpenJDK=8-update111
Oracle OpenJDK=8-update112
Oracle OpenJDK=8-update121
Oracle OpenJDK=8-update131
Oracle OpenJDK=8-update141
Oracle OpenJDK=8-update151
Oracle OpenJDK=8-update152
Oracle OpenJDK=8-update161
Oracle OpenJDK=8-update162
Oracle OpenJDK=8-update171
Oracle OpenJDK=8-update172
Oracle OpenJDK=8-update181
Oracle OpenJDK=8-update191
Oracle OpenJDK=8-update192
Oracle OpenJDK=8-update20
Oracle OpenJDK=8-update201
Oracle OpenJDK=8-update202
Oracle OpenJDK=8-update211
Oracle OpenJDK=8-update212
Oracle OpenJDK=8-update221
Oracle OpenJDK=8-update231
Oracle OpenJDK=8-update241
Oracle OpenJDK=8-update25
Oracle OpenJDK=8-update31
Oracle OpenJDK=8-update40
Oracle OpenJDK=8-update45
Oracle OpenJDK=8-update5
Oracle OpenJDK=8-update51
Oracle OpenJDK=8-update60
Oracle OpenJDK=8-update65
Oracle OpenJDK=8-update66
Oracle OpenJDK=8-update71
Oracle OpenJDK=8-update72
Oracle OpenJDK=8-update73
Oracle OpenJDK=8-update74
Oracle OpenJDK=8-update77
Oracle OpenJDK=8-update91
Oracle OpenJDK=8-update92
Oracle OpenJDK=14
NetApp 7-Mode Transition Tool
Netapp Active Iq Unified Manager Windows>=7.3
Netapp Active Iq Unified Manager Vsphere>=9.5
Netapp Cloud Backup
Netapp Cloud Secure Agent
Netapp E-series Performance Analyzer
NetApp E-Series SANtricity OS Controller>=11.0.0<=11.70.2
Netapp E-series Santricity Web Services Web Services Proxy
NetApp OnCommand Insight
Netapp Santricity Unified Manager
Netapp Snapmanager Sap
Netapp Snapmanager Oracle
Netapp Steelstore Cloud Integrated Storage
Netapp Storagegrid>=9.0.0<=9.0.4
Netapp Storagegrid
Fedoraproject Fedora=30
Fedoraproject Fedora=31
Fedoraproject Fedora=32
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=19.10
openSUSE Leap=15.1
openSUSE Leap=15.2
McAfee ePolicy Orchestrator>=5.9.0<5.10.0
McAfee ePolicy Orchestrator=5.10.0-update_1
McAfee ePolicy Orchestrator=5.10.0-update_2
McAfee ePolicy Orchestrator=5.10.0-update_3
McAfee ePolicy Orchestrator=5.10.0-update_4
McAfee ePolicy Orchestrator=5.10.0-update_5
McAfee ePolicy Orchestrator=5.10.0-update_6
McAfee ePolicy Orchestrator=5.10.0-update_7
McAfee ePolicy Orchestrator=5.10.0-update_8
IBM Engineering Requirements Quality Assistant On-Premises<=All
debian/openjdk-11
11.0.24+8-2~deb11u1
11.0.25~5ea-1
debian/openjdk-8
8u422-b05-1

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the vulnerability ID of this vulnerability?

    The vulnerability ID for this vulnerability is CVE-2020-2756.

  • What is the severity level of CVE-2020-2756?

    The severity level of CVE-2020-2756 is low with a severity value of 3.7.

  • Which versions of Java SE are affected by CVE-2020-2756?

    The affected versions of Java SE are 7u251, 8u241, 11.0.6, and 14.

  • How can an attacker exploit CVE-2020-2756?

    An unauthenticated attacker with network access can exploit CVE-2020-2756.

  • Where can I find more information about CVE-2020-2756?

    You can find more information about CVE-2020-2756 at the following references: [Link1](https://www.oracle.com/security-alerts/cpuapr2020.html#AppendixJAVA) [Link2](https://access.redhat.com/errata/RHSA-2020:1508) [Link3](https://access.redhat.com/errata/RHSA-2020:1507)

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