medium5.6
CVE-2021-3672
A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong host…
Impact
A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong hostnames which might potentially lead to Domain Hijacking. The highest threat from this vulnerability is to confidentiality and integrity as well as system availability.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| C-Ares Project | C-Ares | from 1.0.0 before 1.17.2 |
| Fedoraproject | Fedora | Versions 33, 34 |
| Redhat | Enterprise Linux | Versions 7.0, 7.7, 8.0 |
| Redhat | Enterprise Linux Computer Node | Version 1 |
| Redhat | Enterprise Linux Eus | Versions 7.7, 8.1, 8.2, 8.4 |
| Redhat | Enterprise Linux For Ibm Z Systems | Version 8.0 |
| Redhat | Enterprise Linux For Ibm Z Systems Eus | Versions 8.1, 8.2, 8.4 |
| Redhat | Enterprise Linux For Power Little Endian | Version 8.0 |
| Redhat | Enterprise Linux For Power Little Endian Eus | Versions 8.1, 8.2, 8.4 |
| Redhat | Enterprise Linux Server Aus | Versions 8.2, 8.4 |
| Redhat | Enterprise Linux Server Tus | Versions 8.2, 8.4 |
| Redhat | Enterprise Linux Server Update Services For Sap Solutions | Versions 8.1, 8.2, 8.4 |
Weakness classification
References
- NVD record
- CVE.org record
- https://bugzilla.redhat.com/show_bug.cgi?id=1988342
- https://c-ares.haxx.se/adv_20210810.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- https://security.gentoo.org/glsa/202401-02
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1988342
- https://c-ares.haxx.se/adv_20210810.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- https://security.gentoo.org/glsa/202401-02
- https://www.oracle.com/security-alerts/cpujul2022.html