Vulnérabilités / CVE-2021-43523

critique

CVE-2021-43523

In uClibc and uClibc-ng before 1.0.39, incorrect handling of special c ...

Publiée Modifiée CWE 79
Dans la Trivy database depuis au moins le 24 oct. 2026, 07:11 UTCLa date d'entrée avant ce build n'est pas enregistrée.

Sévérité par source

NVD9.6CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Le label propre à Trivy est CRITICAL. Critique selon NVD, CBL-Mariner.

Description

In uClibc and uClibc-ng before 1.0.39, incorrect handling of special characters in domain names returned by DNS servers via gethostbyname, getaddrinfo, gethostbyaddr, and getnameinfo can lead to output of wrong hostnames (leading to domain hijacking) or injection into applications (leading to remote code execution, XSS, applications crashes, etc.). In other words, a validation step, which is expected in any stub resolver, does not occur.

Paquets affectés et versions corrigées

SourcePaquetCorrigé en
CBL-Mariner 1.0uclibc-ng0:1.0.37-2.cm1
CBL-Mariner 2.0uclibc-ng0:1.0.37-2.cm2
debian 11uclibcpas de correctif indiqué
debian 12uclibcpas de correctif indiqué
debian 13uclibcpas de correctif indiqué
debian 14uclibcpas de correctif indiqué
echouclibcpas de correctif indiqué
rapidfort debian 12uclibcpas de correctif indiqué
rapidfort debian 13uclibcpas de correctif indiqué

Références

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.