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High ELSA-2022-6763 3 CVEs

Important: bind security update (Oracle Linux 9)

Published Oct 4, 2022 · Updated Oct 4, 2022

Summary

[32:9.16.23-1.1]
- Fix possible serve-stale related crash (CVE-2022-3080)
- Fix memory leak in ECDSA verify processing (CVE-2022-38177)
- Fix memory leak in EdDSA verify processing (CVE-2022-38178)

Fixed packages 9

ReleasePackageFixed in
Oracle Linux · 9 bind 32:9.16.23-1.el9_0.1
Oracle Linux · 9 bind-chroot 32:9.16.23-1.el9_0.1
Oracle Linux · 9 bind-devel 32:9.16.23-1.el9_0.1
Oracle Linux · 9 bind-dnssec-doc 32:9.16.23-1.el9_0.1
Oracle Linux · 9 bind-dnssec-utils 32:9.16.23-1.el9_0.1
Oracle Linux · 9 bind-libs 32:9.16.23-1.el9_0.1
Oracle Linux · 9 bind-license 32:9.16.23-1.el9_0.1
Oracle Linux · 9 bind-utils 32:9.16.23-1.el9_0.1
Oracle Linux · 9 python3-bind 32:9.16.23-1.el9_0.1

Vulnerabilities 3

  • High 7.5

    BIND 9 resolvers configured to answer from stale cache with zero stale-answer-client-timeout may terminate unexpectedly

    By sending specific queries to the resolver, an attacker can cause named to crash.

  • 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.