CVE-2021-27419

uClibc-ng versions prior to 1.0.37 are vulnerable to integer wrap-arou ...

Published 3 May 2022Modified 17 Jun 2026CWE 190

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD.

Description

uClibc-ng versions prior to 1.0.37 are vulnerable to integer wrap-around in functions malloc-simple. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.

Affected packages and fixed versions

Source	Package	Fixed in
debian 11	uclibc	no fix listed
debian 12	uclibc	no fix listed
debian 13	uclibc	no fix listed
debian 14	uclibc	1.0.54-1
echo	uclibc	no fix listed
rapidfort debian 12	uclibc	0:1.0.54-1
rapidfort debian 13	uclibc	0:1.0.54-1

References

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Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.