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Vulnerability · Published May 6, 2021 · Assigned by redhat

CVE-2021-20204

Critical 9.8

In plain English

A critical-severity memory corruption in getdata. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.1% (higher than 82% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)2.1%top 18.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A heap memory corruption problem (use after free) can be triggered in libgetdata v0.10.0 when processing maliciously crafted dirfile databases. This degrades the confidentiality, integrity and availability of third-party software that uses libgetdata as a library. This vulnerability may lead to arbitrary code execution or privilege escalation depending on input/skills of attacker.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12libgetdata0.10.0-10DEBIAN-CVE-2021-20204
Debian:13libgetdata0.10.0-10DEBIAN-CVE-2021-20204
Debian:14libgetdata0.10.0-10DEBIAN-CVE-2021-20204
Ubuntu:22.04:LTSlibgetdatano fix listedUBUNTU-CVE-2021-20204
Ubuntu:24.04:LTSlibgetdatano fix listedUBUNTU-CVE-2021-20204
Ubuntu:25.10libgetdatano fix listedUBUNTU-CVE-2021-20204
Ubuntu:26.04:LTSlibgetdatano fix listedUBUNTU-CVE-2021-20204
Ubuntu:26.10libgetdatano fix listedUBUNTU-CVE-2021-20204

Affected products (as reported)

VendorProductVersions
n/a getdata v0.10.0

Weakness: CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References