Vulnerability · Published Oct 20, 2021 · Assigned by oracle

CVE-2021-35556

Medium 5.3

In plain English

A medium-severity security flaw in Java SE JDK and JRE from Oracle Corporation. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 8.4% (higher than 95% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)8.4%top 5.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

Vulnerability in the Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Swing). Supported versions that are affected are Java SE: 7u311, 8u301, 11.0.12, 17; Oracle GraalVM Enterprise Edition: 20.3.3 and 21.2.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Java SE, Oracle GraalVM Enterprise Edition. 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 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8java-1.8.0-openjdk1:1.8.0.312.b07-1.el8_4ALSA-2021:3893
AlmaLinux:8java-1.8.0-openjdk-accessibility1:1.8.0.312.b07-1.el8_4ALSA-2021:3893
AlmaLinux:8java-1.8.0-openjdk-accessibility-fastdebug1:1.8.0.312.b07-1.el8_4ALSA-2021:3893
AlmaLinux:8java-1.8.0-openjdk-accessibility-slowdebug1:1.8.0.312.b07-1.el8_4ALSA-2021:3893
AlmaLinux:8java-1.8.0-openjdk-demo1:1.8.0.312.b07-1.el8_4ALSA-2021:3893
AlmaLinux:8java-1.8.0-openjdk-demo-fastdebug1:1.8.0.312.b07-1.el8_4ALSA-2021:3893
AlmaLinux:8java-1.8.0-openjdk-demo-slowdebug1:1.8.0.312.b07-1.el8_4ALSA-2021:3893
AlmaLinux:8java-1.8.0-openjdk-devel1:1.8.0.312.b07-1.el8_4ALSA-2021:3893
AlmaLinux:8java-1.8.0-openjdk-devel-fastdebug1:1.8.0.312.b07-1.el8_4ALSA-2021:3893
AlmaLinux:8java-1.8.0-openjdk-devel-slowdebug1:1.8.0.312.b07-1.el8_4ALSA-2021:3893
AlmaLinux:8java-1.8.0-openjdk-fastdebug1:1.8.0.312.b07-1.el8_4ALSA-2021:3893
AlmaLinux:8java-1.8.0-openjdk-headless1:1.8.0.312.b07-1.el8_4ALSA-2021:3893
AlmaLinux:8java-1.8.0-openjdk-headless-fastdebug1:1.8.0.312.b07-1.el8_4ALSA-2021:3893
AlmaLinux:8java-1.8.0-openjdk-headless-slowdebug1:1.8.0.312.b07-1.el8_4ALSA-2021:3893
AlmaLinux:8java-1.8.0-openjdk-javadoc1:1.8.0.312.b07-1.el8_4ALSA-2021:3893
AlmaLinux:8java-1.8.0-openjdk-javadoc-zip1:1.8.0.312.b07-1.el8_4ALSA-2021:3893
AlmaLinux:8java-1.8.0-openjdk-slowdebug1:1.8.0.312.b07-1.el8_4ALSA-2021:3893
AlmaLinux:8java-1.8.0-openjdk-src1:1.8.0.312.b07-1.el8_4ALSA-2021:3893
AlmaLinux:8java-1.8.0-openjdk-src-fastdebug1:1.8.0.312.b07-1.el8_4ALSA-2021:3893
AlmaLinux:8java-1.8.0-openjdk-src-slowdebug1:1.8.0.312.b07-1.el8_4ALSA-2021:3893
AlmaLinux:8java-11-openjdk1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-demo1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-demo-fastdebug1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-demo-slowdebug1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-devel1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-devel-fastdebug1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-devel-slowdebug1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-fastdebug1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-headless1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-headless-fastdebug1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-headless-slowdebug1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-javadoc1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-javadoc-zip1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-jmods1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-jmods-fastdebug1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-jmods-slowdebug1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-slowdebug1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-src1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-src-fastdebug1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-src-slowdebug1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-static-libs1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-static-libs-fastdebug1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-11-openjdk-static-libs-slowdebug1:11.0.13.0.8-1.el8_4ALSA-2021:3891
AlmaLinux:8java-17-openjdk1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-demo1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-demo-fastdebug1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-demo-slowdebug1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-devel1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-devel-fastdebug1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-devel-slowdebug1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-fastdebug1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-headless1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-headless-fastdebug1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-headless-slowdebug1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-javadoc1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-javadoc-zip1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-jmods1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-jmods-fastdebug1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-jmods-slowdebug1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-slowdebug1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-src1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-src-fastdebug1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-src-slowdebug1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-static-libs1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-static-libs-fastdebug1:17.0.1.0.12-2.el8_5ALSA-2021:4135
AlmaLinux:8java-17-openjdk-static-libs-slowdebug1:17.0.1.0.12-2.el8_5ALSA-2021:4135
Alpine:v3.20openjdk1111.0.13_p8-r0ALPINE-CVE-2021-35556
Alpine:v3.21openjdk1111.0.13_p8-r0ALPINE-CVE-2021-35556
Alpine:v3.22openjdk1111.0.13_p8-r0ALPINE-CVE-2021-35556
Alpine:v3.23openjdk1111.0.13_p8-r0ALPINE-CVE-2021-35556
Alpine:v3.24openjdk1111.0.13_p8-r0ALPINE-CVE-2021-35556
Alpine:v3.20openjdk1717.0.1_p12-r0ALPINE-CVE-2021-35556
Alpine:v3.21openjdk1717.0.1_p12-r0ALPINE-CVE-2021-35556
Alpine:v3.22openjdk1717.0.1_p12-r0ALPINE-CVE-2021-35556
Alpine:v3.23openjdk1717.0.1_p12-r0ALPINE-CVE-2021-35556
Alpine:v3.24openjdk1717.0.1_p12-r0ALPINE-CVE-2021-35556
Alpine:v3.20openjdk88.312.07-r0ALPINE-CVE-2021-35556
Alpine:v3.21openjdk88.312.07-r0ALPINE-CVE-2021-35556
Alpine:v3.22openjdk88.312.07-r0ALPINE-CVE-2021-35556
Alpine:v3.23openjdk88.312.07-r0ALPINE-CVE-2021-35556
Alpine:v3.24openjdk88.312.07-r0ALPINE-CVE-2021-35556
Debian:12openjdk-1717.0.1+12-1DEBIAN-CVE-2021-35556
Rocky Linux:8java-1.8.0-openjdk1:1.8.0.312.b07-1.el8_4RLSA-2021:3893
Rocky Linux:8java-11-openjdk1:11.0.13.0.8-1.el8_4RLSA-2021:3891
Rocky Linux:8java-17-openjdk1:17.0.1.0.12-2.el8_5RLSA-2021:4135

Affected products (as reported)

VendorProductVersions
Oracle Corporation Java SE JDK and JRE Java SE:7u311Java SE:8u301Java SE:11.0.12Java SE:17Oracle GraalVM Enterprise Edition:20.3.3Oracle GraalVM Enterprise Edition:21.2.0

Weakness: CWE-693 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References