CVE-2021-43523
Vulnerability from cvelistv5
Published
2021-11-10 14:03
Modified
2024-08-04 03:55
Severity ?
EPSS score ?
Summary
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.
References
▼ | URL | Tags | |
---|---|---|---|
cve@mitre.org | https://github.com/wbx-github/uclibc-ng/commit/0f822af0445e5348ce7b7bd8ce1204244f31d174 | Patch, Third Party Advisory | |
cve@mitre.org | https://uclibc-ng.org/ | Vendor Advisory | |
cve@mitre.org | https://www.openwall.com/lists/oss-security/2021/11/09/1 | Exploit, Mailing List, Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://github.com/wbx-github/uclibc-ng/commit/0f822af0445e5348ce7b7bd8ce1204244f31d174 | Patch, Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://uclibc-ng.org/ | Vendor Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://www.openwall.com/lists/oss-security/2021/11/09/1 | Exploit, Mailing List, Third Party Advisory |
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Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.