OESA-2026-4193

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Source

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-4193

Import Source

https://repo.openeuler.org/security/data/osv/OESA-2026-4193.json

JSON Data

https://api.osv.dev/v1/vulns/OESA-2026-4193

Upstream

CVE (3)

CVE-2026-80274
CVE-2026-81563
CVE-2026-81736

Published

2026-09-30T13:47:29Z

Modified

2026-10-01T02:00:07Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

bind security update

Details

Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols and provides an openly redistributable reference implementation of the major components of the Domain Name System. This package includes the components to operate a DNS server.

Security Fix(es):

If a BIND resolver sends a query for a DNSSEC-signed authoritative zone, and the authoritative server replies with a valid wildcard answer and signed NSEC3 proof, followed by an unsigned NSEC at the same owner name, it will trigger an unexpected program exit. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.(CVE-2026-80274)

A BIND resolver encountering an SVCB/HTTPS AliasMode record referencing 14 or more SVCB/HTTPS ServiceMode records may fail to properly deallocate internal resources. If this happens repeatedly, resource exhaustion will eventually prevent the resolver from performing new recursive lookups. This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.18.11-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.(CVE-2026-81563)

If a BIND resolver has cached a tree of SVCB/HTTPS AliasMode records, and is then queried for the root of that tree, the resolver will spend disproportionate CPU time constructing the response. This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.18.11-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.(CVE-2026-81736)

Database specific

{
    "severity": "High"
}

References

Affected packages

openEuler:24.03-LTS-SP4 / bind

Package

Name: bind
Purl: pkg:rpm/openEuler/bind&distro=openEuler-24.03-LTS-SP4

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

9.20.21-5.oe2403sp4

Ecosystem specific

{
    "aarch64": [
        "bind-9.20.21-5.oe2403sp4.aarch64.rpm",
        "bind-chroot-9.20.21-5.oe2403sp4.aarch64.rpm",
        "bind-debuginfo-9.20.21-5.oe2403sp4.aarch64.rpm",
        "bind-debugsource-9.20.21-5.oe2403sp4.aarch64.rpm",
        "bind-devel-9.20.21-5.oe2403sp4.aarch64.rpm",
        "bind-dnssec-utils-9.20.21-5.oe2403sp4.aarch64.rpm",
        "bind-libs-9.20.21-5.oe2403sp4.aarch64.rpm",
        "bind-utils-9.20.21-5.oe2403sp4.aarch64.rpm"
    ],
    "noarch": [
        "bind-dnssec-doc-9.20.21-5.oe2403sp4.noarch.rpm",
        "bind-license-9.20.21-5.oe2403sp4.noarch.rpm"
    ],
    "src": [
        "bind-9.20.21-5.oe2403sp4.src.rpm"
    ],
    "x86_64": [
        "bind-9.20.21-5.oe2403sp4.x86_64.rpm",
        "bind-chroot-9.20.21-5.oe2403sp4.x86_64.rpm",
        "bind-debuginfo-9.20.21-5.oe2403sp4.x86_64.rpm",
        "bind-debugsource-9.20.21-5.oe2403sp4.x86_64.rpm",
        "bind-devel-9.20.21-5.oe2403sp4.x86_64.rpm",
        "bind-dnssec-utils-9.20.21-5.oe2403sp4.x86_64.rpm",
        "bind-libs-9.20.21-5.oe2403sp4.x86_64.rpm",
        "bind-utils-9.20.21-5.oe2403sp4.x86_64.rpm"
    ]
}

Database specific

source

"https://repo.openeuler.org/security/data/osv/OESA-2026-4193.json"