Vulnerability · Published Aug 24, 2022 · Assigned by redhat

CVE-2021-4213

High 7.5

In plain English

A high-severity memory leak in JSS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 78% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.7%top 22.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

A flaw was found in JSS, where it did not properly free up all memory. Over time, the wasted memory builds up in the server memory, saturating the server’s RAM. This flaw allows an attacker to force the invocation of an out-of-memory process, causing a denial of service.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8jss4.9.3-1.module_el8.6.0+2764+9fc58d50ALSA-2022:1851
AlmaLinux:8jss-javadoc4.9.3-1.module_el8.6.0+2764+9fc58d50ALSA-2022:1851
AlmaLinux:8ldapjdk4.23.0-1.module_el8.6.0+2764+9fc58d50ALSA-2022:1851
AlmaLinux:8ldapjdk-javadoc4.23.0-1.module_el8.6.0+2764+9fc58d50ALSA-2022:1851
AlmaLinux:8pki-acme10.12.0-2.module_el8.6.0+2764+9fc58d50ALSA-2022:1851
AlmaLinux:8pki-base10.12.0-2.module_el8.6.0+2764+9fc58d50ALSA-2022:1851
AlmaLinux:8pki-base-java10.12.0-2.module_el8.6.0+2764+9fc58d50ALSA-2022:1851
AlmaLinux:8pki-ca10.12.0-2.module_el8.6.0+2764+9fc58d50ALSA-2022:1851
AlmaLinux:8pki-kra10.12.0-2.module_el8.6.0+2764+9fc58d50ALSA-2022:1851
AlmaLinux:8pki-server10.12.0-2.module_el8.6.0+2764+9fc58d50ALSA-2022:1851
AlmaLinux:8pki-symkey10.12.0-2.module_el8.6.0+2764+9fc58d50ALSA-2022:1851
AlmaLinux:8pki-tools10.12.0-2.module_el8.6.0+2764+9fc58d50ALSA-2022:1851
AlmaLinux:8python3-pki10.12.0-2.module_el8.6.0+2764+9fc58d50ALSA-2022:1851
AlmaLinux:8tomcatjss7.7.1-1.module_el8.6.0+2764+9fc58d50ALSA-2022:1851
Debian:12jss5.2.0-1DEBIAN-CVE-2021-4213
Debian:14jss5.2.0-1DEBIAN-CVE-2021-4213
Rocky Linux:8jss0:4.9.3-1.module+el8.6.0+788+76246f77RLSA-2022:1851
Rocky Linux:8ldapjdk0:4.23.0-1.module+el8.5.0+701+8dc610e5RLSA-2022:1851
Rocky Linux:8ldapjdk0:4.23.0-1.module+el8.7.0+1069+6f3de942RLSA-2022:1851
Rocky Linux:8pki-core0:10.12.0-2.module+el8.6.0+788+76246f77RLSA-2022:1851
Rocky Linux:8tomcatjss0:7.7.1-1.module+el8.6.0+788+76246f77RLSA-2022:1851
Ubuntu:22.04:LTSjssno fix listedUBUNTU-CVE-2021-4213
Ubuntu:24.04:LTSjssno fix listedUBUNTU-CVE-2021-4213
Ubuntu:25.10jssno fix listedUBUNTU-CVE-2021-4213
Ubuntu:26.04:LTSjssno fix listedUBUNTU-CVE-2021-4213
Ubuntu:26.10jssno fix listedUBUNTU-CVE-2021-4213

Affected products (as reported)

VendorProductVersions
n/a JSS Fixed in v5.2.0-beta1

Weakness: CWE-401

References