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Fencer Vulns
medium 5.3

CVE-2020-14803 json

Vulnerability in the Java SE product of Oracle Java SE (component: Libraries).

published 2020-10-21 6 y ago modified 2026-09-08 2 mo ago also BIT-java-2020-14803 , BIT-java-min-2020-14803 , BIT-jre-2020-14803 , EUVD-2020-6939

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
3.2%
EPSS 3.2% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

Vulnerability in the Java SE product of Oracle Java SE (component: Libraries). Supported versions that are affected are Java SE: 11.0.8 and 15. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Java SE accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator). CVSS 3.1 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

Patch / fix

  • bitnami java 11.0.9, 15.0.1
  • bitnami java-min 11.0.9, 15.0.1
  • bitnami jre 11.0.9, 15.0.1
  • oracle java_se 11.0.9, 15.0.1
  • oracle jdk 11.0.9, 15.0.1
  • oracle jre 11.0.9, 15.0.1
  • sun java 11.0.9, 15.0.1
  • sun java_se 11.0.9, 15.0.1
  • sun jdk 11.0.9, 15.0.1
  • sun jre 11.0.9, 15.0.1
  • oracle openjdk 11.0.9, 15.0.1
  • sun openjdk 11.0.9, 15.0.1
  • openjdk-11 Debian 11 11.0.9+11-1

debian advisories DEBIAN-CVE-2020-14803

  • openjdk-8 Ubuntu 16.04 LTS 8u272-b10-0ubuntu1~16.04
  • openjdk-8 Ubuntu 18.04 LTS 8u272-b10-0ubuntu1~18.04
  • openjdk-8 Ubuntu 20.04 LTS 8u272-b10-0ubuntu1~20.04
  • openjdk-lts Ubuntu 18.04 LTS 11.0.9+11-0ubuntu1~18.04.1
  • openjdk-lts Ubuntu 20.04 LTS 11.0.9+11-0ubuntu1~20.04

ubuntu advisories UBUNTU-CVE-2020-14803

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • java-1.8.0-openjdk RHEL 6 1:1.8.0.272.b10-0.el6_10
  • java-1.8.0-openjdk-src RHEL 6 1:1.8.0.272.b10-0.el6_10
  • java-1.8.0-openjdk-demo RHEL 6 1:1.8.0.272.b10-0.el6_10
  • java-1.8.0-openjdk-javadoc RHEL 6 1:1.8.0.272.b10-0.el6_10
  • java-1.8.0-openjdk-headless RHEL 6 1:1.8.0.272.b10-0.el6_10
  • java-1.8.0-openjdk RHEL 8 1:1.8.0.272.b10-1.el8_2
  • java-1.8.0-openjdk-src RHEL 8 1:1.8.0.272.b10-1.el8_2
  • java-1.8.0-openjdk-demo RHEL 8 1:1.8.0.272.b10-1.el8_2

red hat advisories RHSA-2020:4348RHSA-2020:4347RHSA-2020:4350RHSA-2020:4349RHSA-2020:4352RHSA-2020:4307

  • java-1_8_0-ibm SLES for SAP 15 SP1, SLES for SAP 15, SLES 15-LTSS +7 more 1.8.0_sr6.25-3.50.1
  • java-1_8_0-openjdk SLES for SAP 15 SP1, SLES for SAP 15, SLES 15-LTSS +7 more 1.8.0.282-3.48.1
  • java-1_8_0-ibm SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES for SAP 12 SP3 +14 more 1.8.0_sr6.25-30.81.1
  • java-1_7_0-ibm SLE Point of Sale 11 SP3 1.7.0_sr10.80-65.60.1
  • java-1_8_0-openjdk SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES for SAP 12 SP3 +13 more 1.8.0.282-27.56.2
  • java-1_7_1-ibm SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES for SAP 12 SP3 +14 more 1.7.1_sr4.80-38.62.1
  • java-1_8_0-ibm SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES for SAP 12 SP3 +15 more 1.8.0_sr6.20-30.78.1
  • java-1_7_1-ibm SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES for SAP 12 SP3 +15 more 1.7.1_sr4.75-38.59.1

suse advisories SUSE-SU-2021:0670-1SUSE-SU-2021:0665-1SUSE-SU-2021:0652-1SUSE-SU-2021:14640-1SUSE-SU-2021:0533-1SUSE-SU-2021:14634-1

  • java-11-openj9 Package Hub 15 SP6, openSUSE Leap 15.6 11.0.26.0-bp156.4.3.1
  • java-11-openj9 openSUSE Tumbleweed 11.0.11.0-3.2
  • java-11-openjdk openSUSE Tumbleweed 11.0.12.0-3.1
  • java-13-openjdk openSUSE Tumbleweed 13.0.8.0-3.1
  • java-15-openjdk openSUSE Tumbleweed 15.0.4.0-2.1
  • java-1_8_0-openj9 openSUSE Tumbleweed 1.8.0.292-3.2
  • java-1_8_0-openjdk openSUSE Tumbleweed 1.8.0.302-2.2
  • java-1_8_0-openjdk openSUSE Leap 15.2 1.8.0.282-lp152.2.9.1

opensuse advisories openSUSE-SU-2025:0066-1openSUSE-SU-2024:10870-1openSUSE-SU-2024:10871-1openSUSE-SU-2024:10872-1openSUSE-SU-2024:10873-1openSUSE-SU-2024:10875-1

  • openjdk7 Alpine 3.18, Alpine 3.17, Alpine 3.16 +6 more 7.281.2.6.24-r0
  • openjdk8 Alpine 3.24, Alpine 3.23, Alpine 3.22 +15 more 8.272.10-r0
  • openjdk11 Alpine 3.24, Alpine 3.23, Alpine 3.22 +10 more 11.0.9_p11-r0

alpine advisories ALPINE-CVE-2020-14803

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-14803 updated cvss 5.3

OpenJDK: Race condition in NIO Buffer boundary checks (Libraries, 8244136)

  • Red Hat Enterprise Linux 8 Supplementary java-1.8.0-ibm 1.8.0.6.25-2.el8_3, java-1.8.0-ibm-src 1.8.0.6.25-2.el8_3, java-1.8.0-ibm-demo 1.8.0.6.25-2.el8_3, java-1.8.0-ibm-jdbc 1.8.0.6.25-2.el8_3, java-1.8.0-ibm-plugin 1.8.0.6.25-2.el8_3, java-1.8.0-ibm-headless 1.8.0.6.25-2.el8_3, +1 more
    fixed: vendor fix RHSA-2021:0736
  • Red Hat Enterprise Linux AppStream (v. 8) java-11-openjdk 11.0.9.11-0.el8_2, java-11-openjdk-src 11.0.9.11-0.el8_2, java-11-openjdk-demo 11.0.9.11-0.el8_2, java-11-openjdk-jmods 11.0.9.11-0.el8_2, java-1.8.0-openjdk 1.8.0.272.b10-1.el8_2, java-11-openjdk-javadoc 11.0.9.11-0.el8_2, +9 more
    fixed: vendor fix RHSA-2020:4347
  • Red Hat Enterprise Linux AppStream E4S (v. 8.0) java-11-openjdk 11.0.9.11-0.el8_0, java-11-openjdk-src 11.0.9.11-0.el8_0, java-11-openjdk-demo 11.0.9.11-0.el8_0, java-11-openjdk-jmods 11.0.9.11-0.el8_0, java-1.8.0-openjdk 1.8.0.272.b10-0.el8_0, java-11-openjdk-javadoc 11.0.9.11-0.el8_0, +8 more
    fixed: vendor fix RHSA-2020:4349
  • Red Hat Enterprise Linux AppStream EUS (v. 8.1) java-11-openjdk 11.0.9.11-0.el8_1, java-11-openjdk-src 11.0.9.11-0.el8_1, java-11-openjdk-demo 11.0.9.11-0.el8_1, java-11-openjdk-jmods 11.0.9.11-0.el8_1, java-1.8.0-openjdk 1.8.0.272.b10-0.el8_1, java-11-openjdk-javadoc 11.0.9.11-0.el8_1, +8 more
    fixed: vendor fix RHSA-2020:4352
  • Red Hat Enterprise Linux Client (v. 7) java-11-openjdk 11.0.9.11-0.el7_9, java-1.8.0-openjdk 1.8.0.272.b10-1.el7_9, java-11-openjdk-headless 11.0.9.11-0.el7_9, java-1.8.0-openjdk-headless 1.8.0.272.b10-1.el7_9 Red Hat Enterprise Linux Client Optional (v. 7) java-11-openjdk-src 11.0.9.11-0.el7_9, java-11-openjdk-demo 11.0.9.11-0.el7_9, java-11-openjdk-jmods 11.0.9.11-0.el7_9, java-11-openjdk-javadoc 11.0.9.11-0.el7_9, java-1.8.0-openjdk-src 1.8.0.272.b10-1.el7_9, java-1.8.0-openjdk-demo 1.8.0.272.b10-1.el7_9, +5 more
    fixed: vendor fix RHSA-2020:4350
  • Red Hat Enterprise Linux Client Supplementary (v. 7) java-1.7.1-ibm 1.7.1.4.80-1jpp.1.el7, java-1.8.0-ibm 1.8.0.6.25-1jpp.1.el7, java-1.7.1-ibm-src 1.7.1.4.80-1jpp.1.el7, java-1.8.0-ibm-src 1.8.0.6.25-1jpp.1.el7, java-1.7.1-ibm-demo 1.7.1.4.80-1jpp.1.el7, java-1.7.1-ibm-jdbc 1.7.1.4.80-1jpp.1.el7, +4 more
    fixed: vendor fix RHSA-2021:0733
  • Red Hat Enterprise Linux ComputeNode Optional (v. 7) java-11-openjdk-src 11.0.9.11-0.el7_9, java-11-openjdk-demo 11.0.9.11-0.el7_9, java-11-openjdk-jmods 11.0.9.11-0.el7_9, java-11-openjdk-javadoc 11.0.9.11-0.el7_9, java-1.8.0-openjdk-src 1.8.0.272.b10-1.el7_9, java-1.8.0-openjdk-demo 1.8.0.272.b10-1.el7_9, +5 more
    fixed: vendor fix RHSA-2020:4350
  • Red Hat Enterprise Linux ComputeNode Supplementary (v. 7) java-1.7.1-ibm 1.7.1.4.80-1jpp.1.el7, java-1.8.0-ibm 1.8.0.6.25-1jpp.1.el7, java-1.7.1-ibm-src 1.7.1.4.80-1jpp.1.el7, java-1.8.0-ibm-src 1.8.0.6.25-1jpp.1.el7, java-1.7.1-ibm-demo 1.7.1.4.80-1jpp.1.el7, java-1.8.0-ibm-demo 1.8.0.6.25-1jpp.1.el7
    fixed: vendor fix RHSA-2021:0733
show 10 more
  • Red Hat Enterprise Linux Desktop (v. 6) java-1.8.0-openjdk 1.8.0.272.b10-0.el6_10, java-1.8.0-openjdk-headless 1.8.0.272.b10-0.el6_10 Red Hat Enterprise Linux Desktop Optional (v. 6) java-1.8.0-openjdk-src 1.8.0.272.b10-0.el6_10, java-1.8.0-openjdk-demo 1.8.0.272.b10-0.el6_10, java-1.8.0-openjdk-javadoc 1.8.0.272.b10-0.el6_10 Red Hat Enterprise Linux HPC Node (v. 6) java-1.8.0-openjdk 1.8.0.272.b10-0.el6_10, java-1.8.0-openjdk-headless 1.8.0.272.b10-0.el6_10 Red Hat Enterprise Linux HPC Node Optional (v. 6) java-1.8.0-openjdk-src 1.8.0.272.b10-0.el6_10, java-1.8.0-openjdk-demo 1.8.0.272.b10-0.el6_10, java-1.8.0-openjdk-javadoc 1.8.0.272.b10-0.el6_10 Red Hat Enterprise Linux Server (v. 6) java-1.8.0-openjdk 1.8.0.272.b10-0.el6_10, java-1.8.0-openjdk-headless 1.8.0.272.b10-0.el6_10
    fixed: vendor fix RHSA-2020:4348
  • Red Hat Enterprise Linux Server (v. 7) java-11-openjdk 11.0.9.11-0.el7_9, java-1.8.0-openjdk 1.8.0.272.b10-1.el7_9, java-11-openjdk-headless 11.0.9.11-0.el7_9, java-1.8.0-openjdk-headless 1.8.0.272.b10-1.el7_9
    fixed: vendor fix RHSA-2020:4350
  • Red Hat Enterprise Linux Server Optional (v. 6) java-1.8.0-openjdk-src 1.8.0.272.b10-0.el6_10, java-1.8.0-openjdk-demo 1.8.0.272.b10-0.el6_10, java-1.8.0-openjdk-javadoc 1.8.0.272.b10-0.el6_10
    fixed: vendor fix RHSA-2020:4348
  • Red Hat Enterprise Linux Server Optional (v. 7) java-11-openjdk-src 11.0.9.11-0.el7_9, java-11-openjdk-demo 11.0.9.11-0.el7_9, java-11-openjdk-jmods 11.0.9.11-0.el7_9, java-11-openjdk-javadoc 11.0.9.11-0.el7_9, java-1.8.0-openjdk-src 1.8.0.272.b10-1.el7_9, java-1.8.0-openjdk-demo 1.8.0.272.b10-1.el7_9, +5 more
    fixed: vendor fix RHSA-2020:4350
  • Red Hat Enterprise Linux Server Supplementary (v. 7) java-1.7.1-ibm 1.7.1.4.80-1jpp.1.el7, java-1.8.0-ibm 1.8.0.6.25-1jpp.1.el7, java-1.7.1-ibm-src 1.7.1.4.80-1jpp.1.el7, java-1.8.0-ibm-src 1.8.0.6.25-1jpp.1.el7, java-1.7.1-ibm-demo 1.7.1.4.80-1jpp.1.el7, java-1.7.1-ibm-jdbc 1.7.1.4.80-1jpp.1.el7, +4 more
    fixed: vendor fix RHSA-2021:0733
  • Red Hat Enterprise Linux Workstation (v. 6) java-1.8.0-openjdk 1.8.0.272.b10-0.el6_10, java-1.8.0-openjdk-headless 1.8.0.272.b10-0.el6_10
    fixed: vendor fix RHSA-2020:4348
  • Red Hat Enterprise Linux Workstation (v. 7) java-11-openjdk 11.0.9.11-0.el7_9, java-1.8.0-openjdk 1.8.0.272.b10-1.el7_9, java-11-openjdk-headless 11.0.9.11-0.el7_9, java-1.8.0-openjdk-headless 1.8.0.272.b10-1.el7_9
    fixed: vendor fix RHSA-2020:4350
  • Red Hat Enterprise Linux Workstation Optional (v. 6) java-1.8.0-openjdk-src 1.8.0.272.b10-0.el6_10, java-1.8.0-openjdk-demo 1.8.0.272.b10-0.el6_10, java-1.8.0-openjdk-javadoc 1.8.0.272.b10-0.el6_10
    fixed: vendor fix RHSA-2020:4348
  • Red Hat Enterprise Linux Workstation Optional (v. 7) java-11-openjdk-src 11.0.9.11-0.el7_9, java-11-openjdk-demo 11.0.9.11-0.el7_9, java-11-openjdk-jmods 11.0.9.11-0.el7_9, java-11-openjdk-javadoc 11.0.9.11-0.el7_9, java-1.8.0-openjdk-src 1.8.0.272.b10-1.el7_9, java-1.8.0-openjdk-demo 1.8.0.272.b10-1.el7_9, +5 more
    fixed: vendor fix RHSA-2020:4350
  • Red Hat Enterprise Linux Workstation Supplementary (v. 7) java-1.7.1-ibm 1.7.1.4.80-1jpp.1.el7, java-1.8.0-ibm 1.8.0.6.25-1jpp.1.el7, java-1.7.1-ibm-src 1.7.1.4.80-1jpp.1.el7, java-1.8.0-ibm-src 1.8.0.6.25-1jpp.1.el7, java-1.7.1-ibm-demo 1.7.1.4.80-1jpp.1.el7, java-1.7.1-ibm-jdbc 1.7.1.4.80-1jpp.1.el7, +4 more
    fixed: vendor fix RHSA-2021:0733

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

3.16% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N
OSV 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem package affected fixed in
bitnami java
>=9.0.0, <11.0.9
>=12.0.0, <15.0.1
11.0.9
15.0.1
bitnami java-min
>=9.0.0, <11.0.9
>=12.0.0, <15.0.1
11.0.9
15.0.1
bitnami jre
>=9.0.0, <11.0.9
>=12.0.0, <15.0.1
11.0.9
15.0.1

Affected products

  • Oracle Corporation Java SE JDK and JRE
  • Oracle Corporation GraalVM Enterprise Edition

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Updated Java versions.