QID 671048

Date Published: 2021-11-29

QID 671048: EulerOS Security Update for unbound (EulerOS-SA-2021-2620)

Unbound is a validating, recursive, and caching dns(sec) resolver.
the c implementation of unbound is developed and maintained by nlnet labs.
It is based on ideas and algorithms taken from a java prototype developed by verisign labs, nominet, kirei and ep.net.
unbound is designed as a set of modular components, so that also dnssec (secure dns) validation and stub-resolvers (that do not run as a server, but are linked into an application) are easily possible.

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

An arbitrary attacker may exploit this vulnerability to compromise the system.

  • CVSS V3 rated as Critical - 9.8 severity.
  • CVSS V2 rated as High - 7.5 severity.
    • Solution
    The Vendor has released a security update to fix the vulnerability. For more information please visit EulerOS-SA-2021-2620 for updates and patch information
    Vendor References

    CVEs related to QID 671048

    CVE-2019-25038 | CVE-2019-25040 | CVE-2019-25035 | CVE-2019-25034 | CVE-2019-25032 | CVE-2019-25039 | CVE-2019-25037 | CVE-2019-25036 | CVE-2019-25031 | CVE-2019-25033 | CVE-2019-25041 | CVE-2019-25042 |
    Software Advisories
    Advisory ID Software Component Link
    EulerOS-SA-2021-2620 EulerOS V2.0SP3 URL Logo developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2021-2620
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