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OpenAdvisories
High ALSA-2022:6778 2 CVEs

Important: bind security update

Published Oct 4, 2022 · Updated Oct 29, 2026

Summary

The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly.

Security Fix(es):

* bind: memory leak in ECDSA DNSSEC verification code (CVE-2022-38177)
* bind: memory leaks in EdDSA DNSSEC verification code (CVE-2022-38178)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Fixed packages 17

ReleasePackageFixed in
AlmaLinux · 8 bind 32:9.11.36-3.el8_6.1
AlmaLinux · 8 bind-chroot 32:9.11.36-3.el8_6.1
AlmaLinux · 8 bind-devel 32:9.11.36-3.el8_6.1
AlmaLinux · 8 bind-export-devel 32:9.11.36-3.el8_6.1
AlmaLinux · 8 bind-export-libs 32:9.11.36-3.el8_6.1
AlmaLinux · 8 bind-libs 32:9.11.36-3.el8_6.1
AlmaLinux · 8 bind-libs-lite 32:9.11.36-3.el8_6.1
AlmaLinux · 8 bind-license 32:9.11.36-3.el8_6.1
AlmaLinux · 8 bind-lite-devel 32:9.11.36-3.el8_6.1
AlmaLinux · 8 bind-pkcs11 32:9.11.36-3.el8_6.1
AlmaLinux · 8 bind-pkcs11-devel 32:9.11.36-3.el8_6.1
AlmaLinux · 8 bind-pkcs11-libs 32:9.11.36-3.el8_6.1
AlmaLinux · 8 bind-pkcs11-utils 32:9.11.36-3.el8_6.1
AlmaLinux · 8 bind-sdb 32:9.11.36-3.el8_6.1
AlmaLinux · 8 bind-sdb-chroot 32:9.11.36-3.el8_6.1
AlmaLinux · 8 bind-utils 32:9.11.36-3.el8_6.1
AlmaLinux · 8 python3-bind 32:9.11.36-3.el8_6.1

Vulnerabilities 2

  • High 7.5

    Memory leak in ECDSA DNSSEC verification code

    By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources.

  • High 7.5

    Memory leaks in EdDSA DNSSEC verification code

    By spoofing the target resolver with responses that have a malformed EdDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources.

References

  • report
    https://access.redhat.com/security/cve/CVE-2022-38177
  • report
    https://access.redhat.com/security/cve/CVE-2022-38178
  • report
    https://bugzilla.redhat.com/2128601
  • report
    https://bugzilla.redhat.com/2128602
  • advisory
    https://errata.almalinux.org/8/ALSA-2022-6778.html