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.
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Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2021-11-10T14:03:56
Updated: 2024-08-04T03:55:29.258Z
Reserved: 2021-11-08T00:00:00
Link: CVE-2021-43523
Vulnrichment
No data.
NVD
Status : Modified
Published: 2021-11-10T15:15:12.213
Modified: 2024-11-21T06:29:21.310
Link: CVE-2021-43523
Redhat
No data.