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OpenAdvisories
Medium ALAS2-2026-3353 2 CVEs

Moderate: bind security update (Amazon Linux 2)

Published Jun 8, 2026 · Updated Jun 8, 2026

Ecosystem: Amazon Linux

Summary

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2026-5950: Avoid unbounded recursion loop CVE-2026-3592: Limit resolver server list size

Fixed packages 17

ReleasePackageFixed in
Amazon Linux · 2 bind 32:9.11.4-26.P2.amzn2.13.16
Amazon Linux · 2 bind-chroot 32:9.11.4-26.P2.amzn2.13.16
Amazon Linux · 2 bind-debuginfo 32:9.11.4-26.P2.amzn2.13.16
Amazon Linux · 2 bind-devel 32:9.11.4-26.P2.amzn2.13.16
Amazon Linux · 2 bind-export-devel 32:9.11.4-26.P2.amzn2.13.16
Amazon Linux · 2 bind-export-libs 32:9.11.4-26.P2.amzn2.13.16
Amazon Linux · 2 bind-libs 32:9.11.4-26.P2.amzn2.13.16
Amazon Linux · 2 bind-libs-lite 32:9.11.4-26.P2.amzn2.13.16
Amazon Linux · 2 bind-license 32:9.11.4-26.P2.amzn2.13.16
Amazon Linux · 2 bind-lite-devel 32:9.11.4-26.P2.amzn2.13.16
Amazon Linux · 2 bind-pkcs11 32:9.11.4-26.P2.amzn2.13.16
Amazon Linux · 2 bind-pkcs11-devel 32:9.11.4-26.P2.amzn2.13.16
Amazon Linux · 2 bind-pkcs11-libs 32:9.11.4-26.P2.amzn2.13.16
Amazon Linux · 2 bind-pkcs11-utils 32:9.11.4-26.P2.amzn2.13.16
Amazon Linux · 2 bind-sdb 32:9.11.4-26.P2.amzn2.13.16
Amazon Linux · 2 bind-sdb-chroot 32:9.11.4-26.P2.amzn2.13.16
Amazon Linux · 2 bind-utils 32:9.11.4-26.P2.amzn2.13.16

Vulnerabilities 2

  • Medium 5.3
    CVE-2026-3592

    Amplification vulnerabilities via self-pointed glue records

    BIND resolvers are vulnerable to an amplified resource consumption/exhaustion attack. If a victim resolver makes a query to a specially crafted zone, the resolver will consume disproportionate resources. This issue affects BIND 9 versions 9.11.0 through 9.16.…

    ISC BIND 9 bind9 bind9 Debian Ubuntu Azure Linux Alpine
  • Medium 5.3
    CVE-2026-5950 Public exploit

    Unbounded resend loop in BIND 9 resolver

    An unbounded resend loop vulnerability exists in the BIND 9 resolver state machine during bad-server handling, enabling a remote unauthenticated attacker to cause severe resource exhaustion by sending queries that trigger specific retry conditions. This issue…

    ISC BIND 9 bind9 bind9 Debian Ubuntu Azure Linux Alpine

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-3592.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-5950.html