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Zafiyetler / CVE-2021-43523

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CVE-2021-43523

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

Yayın Değişiklik CWE 79
En geç 24 Eki 2026, 07:11 UTC tarihinden beri Trivy database'indeO derlemeden önce ne zaman girdiği kayıtlı değil.

Kaynağa göre önem derecesi

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

Trivy'nin kendi etiketi CRITICAL. Kritik diyenler: NVD, CBL-Mariner.

Açıklama

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.

Etkilenen paketler ve düzeltilmiş sürümler

KaynakPaketDüzeltildiği sürüm
CBL-Mariner 1.0uclibc-ng0:1.0.37-2.cm1
CBL-Mariner 2.0uclibc-ng0:1.0.37-2.cm2
debian 11uclibcdüzeltme belirtilmemiş
debian 12uclibcdüzeltme belirtilmemiş
debian 13uclibcdüzeltme belirtilmemiş
debian 14uclibcdüzeltme belirtilmemiş
echouclibcdüzeltme belirtilmemiş
rapidfort debian 12uclibcdüzeltme belirtilmemiş
rapidfort debian 13uclibcdüzeltme belirtilmemiş

Referanslar

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.