CVE-2021-43523 - CERT CVE
ID CVE-2021-43523
Sažetak 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.
Reference
CVSS
Base: 6.8
Impact: 6.4
Exploitability:8.6
Pristup
VektorSloženostAutentikacija
NETWORK MEDIUM NONE
Impact
PovjerljivostCjelovitostDostupnost
PARTIAL PARTIAL PARTIAL
CVSS vektor AV:N/AC:M/Au:N/C:P/I:P/A:P
Zadnje važnije ažuriranje 05-05-2025 - 17:17
Objavljeno 10-11-2021 - 15:15