Cette page suit l'état du correctif pour Debian. La vulnérabilité elle-même est décrite sur la page CVE principale. Voir CVE-2021-43523 →

DEBIAN-CVE-2021-43523

In uClibc and uClibc-ng before 1.0.39, incorrect handling of special characters in domain names returned by DNS servers via gethostbyname, getaddrinfo...

Description d'origine

La description telle que publiée par la source (souvent en anglais).

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Paquets affectés

Debian:12 uclibc

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 uclibc

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 uclibc

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Références

advisory security-tracker.debian.org