p PatchFirst

CVE-2026-97313

CVE-2026-97313 · Specific RPZ configurations and query patterns may result in an unexpected exit

This page contains facts from public vulnerability sources. Check the original advisory before updating.

A recursive BIND server that receives a query with recursion desired (RD=1) followed by a non-recursive query (RD=0) may exit with an assertion failure, resulting in a denial of service. To be vulnerable, the BIND server must allow recursive queries and have at least two RPZ zones configured: one with the default setting of "recursive-only yes", and the other with "recursive-only no". This issue affects BIND 9 versions 9.16.0 through 9.18.50, 9.20.0 through 9.20.29, 9.21.0 through 9.21.26, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.29-S1.

CVSS 7.5 · High · EPSS 0.4% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • bind 9

    Versions
    • ≥ 9.16.0, ≤ 9.18.50: Affected (custom)
    • ≥ 9.20.0, ≤ 9.20.29: Affected (custom)
    • ≥ 9.21.0, ≤ 9.21.26: Affected (custom)
    • ≥ 9.11.3-S1, ≤ 9.18.50-S1: Affected (custom)
    • ≥ 9.20.9-S1, ≤ 9.20.29-S1: Affected (custom)

    No fix published

  • bind9 Debian:12

    Versions
    • 1:9.18.12-1
    • 1:9.18.13-1
    • 1:9.18.16-1
    • 1:9.18.16-1~deb12u1
    • 1:9.18.16-1~deb12u1~bpo11+1
    • 1:9.18.19-1~deb12u1
    • 1:9.18.19-1~deb12u1~bpo11+1
    • 1:9.18.24-1
    • 1:9.18.24-1~bpo11+1
    • 1:9.18.28-1~deb12u1
    • 1:9.18.28-1~deb12u2
    • 1:9.18.33-1~deb12u2
    • 1:9.18.41-1~deb12u1
    • 1:9.18.44-1~deb12u1
    • 1:9.18.47-1~deb12u1
    • 1:9.18.49-1~deb12u1
    • 1:9.18.49-1~deb12u2
    • 1:9.19.10-1
    • 1:9.19.11-1
    • 1:9.19.14-1
    • 1:9.19.17-1
    • 1:9.19.19-1
    • 1:9.19.21-1
    • 1:9.19.24-185-g392e7199df2-1
    • 1:9.19.24-2
    • 1:9.19.6-1
    • 1:9.19.6-2
    • 1:9.20.0-1
    • 1:9.20.0-2
    • 1:9.20.1-1
    • 1:9.20.10-1
    • 1:9.20.11-1
    • 1:9.20.11-2
    • 1:9.20.11-3
    • 1:9.20.11-4
    • 1:9.20.11-4~bpo12+1
    • 1:9.20.15-1
    • 1:9.20.15-1~deb13u1
    • 1:9.20.15-1~deb13u1~bpo12+1
    • 1:9.20.15-2
    • 1:9.20.18-1
    • 1:9.20.18-1~deb13u1
    • 1:9.20.18-1~deb13u1~bpo12+1
    • 1:9.20.19-1
    • 1:9.20.19-1~bpo12+1
    • 1:9.20.2-1
    • 1:9.20.20-1
    • 1:9.20.20-1~bpo12+1
    • 1:9.20.21-1
    • 1:9.20.21-1~deb13u1
    • 1:9.20.21-1~deb13u1~bpo12+1
    • 1:9.20.22-1
    • 1:9.20.23-1
    • 1:9.20.23-1~deb13u1
    • 1:9.20.23-1~deb13u1~bpo12+1
    • 1:9.20.24-1
    • 1:9.20.26-1
    • 1:9.20.26-1~deb13u1
    • 1:9.20.26-1~deb13u1~bpo12+1
    • 1:9.20.27-1
    • 1:9.20.27-2
    • 1:9.20.29-1
    • 1:9.20.29-1~deb13u1
    • 1:9.20.3-1
    • 1:9.20.30-1
    • 1:9.20.30-1~deb13u1
    • 1:9.20.4-2
    • 1:9.20.4-3
    • 1:9.20.4-4
    • 1:9.20.5-1
    • 1:9.20.7-1
    • 1:9.20.8-1
    • 1:9.20.8-2
    • 1:9.20.8-3
    • 1:9.20.8-4
    • 1:9.20.8-5
    • 1:9.20.8-6
    • 1:9.20.9-1
    • 1:9.20.9-2
    • 1:9.21.0-1
    • 1:9.21.1-1
    • 1:9.21.10-1
    • 1:9.21.10-10
    • 1:9.21.10-2
    • 1:9.21.10-4
    • 1:9.21.10-5
    • 1:9.21.10-6
    • 1:9.21.10-7
    • 1:9.21.10-8
    • 1:9.21.10-9
    • 1:9.21.14-1
    • 1:9.21.18-1
    • 1:9.21.21-1
    • 1:9.21.22-1
    • 1:9.21.23-1
    • 1:9.21.25-1
    • 1:9.21.26-1
    • 1:9.21.3-1
    • 1:9.21.6-1
    • 1:9.21.7-1
    • 1:9.21.9-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • bind9 Debian:13

    Versions
    • 1:9.20.11-4
    • 1:9.20.15-1
    • 1:9.20.15-1~deb13u1
    • 1:9.20.15-1~deb13u1~bpo12+1
    • 1:9.20.15-2
    • 1:9.20.18-1
    • 1:9.20.18-1~deb13u1
    • 1:9.20.18-1~deb13u1~bpo12+1
    • 1:9.20.19-1
    • 1:9.20.19-1~bpo12+1
    • 1:9.20.20-1
    • 1:9.20.20-1~bpo12+1
    • 1:9.20.21-1
    • 1:9.20.21-1~deb13u1
    • 1:9.20.21-1~deb13u1~bpo12+1
    • 1:9.20.22-1
    • 1:9.20.23-1
    • 1:9.20.23-1~deb13u1
    • 1:9.20.23-1~deb13u1~bpo12+1
    • 1:9.20.24-1
    • 1:9.20.26-1
    • 1:9.20.26-1~deb13u1
    • 1:9.20.26-1~deb13u1~bpo12+1
    • 1:9.20.27-1
    • 1:9.20.27-2
    • 1:9.20.29-1
    • 1:9.20.29-1~deb13u1
    Affected ranges
    • ECOSYSTEM: < 1:9.20.30-1~deb13u1

    Update to 1:9.20.30-1~deb13u1

  • bind9 Debian:14

    Versions
    • 1:9.20.11-4
    • 1:9.20.15-1
    • 1:9.20.15-1~deb13u1
    • 1:9.20.15-1~deb13u1~bpo12+1
    • 1:9.20.15-2
    • 1:9.20.18-1
    • 1:9.20.18-1~deb13u1
    • 1:9.20.18-1~deb13u1~bpo12+1
    • 1:9.20.19-1
    • 1:9.20.19-1~bpo12+1
    • 1:9.20.20-1
    • 1:9.20.20-1~bpo12+1
    • 1:9.20.21-1
    • 1:9.20.21-1~deb13u1
    • 1:9.20.21-1~deb13u1~bpo12+1
    • 1:9.20.22-1
    • 1:9.20.23-1
    • 1:9.20.23-1~deb13u1
    • 1:9.20.23-1~deb13u1~bpo12+1
    • 1:9.20.24-1
    • 1:9.20.26-1
    • 1:9.20.26-1~deb13u1
    • 1:9.20.26-1~deb13u1~bpo12+1
    • 1:9.20.27-1
    • 1:9.20.27-2
    • 1:9.20.29-1
    • 1:9.20.29-1~deb13u1
    • 1:9.20.30-1
    • 1:9.20.30-1~deb13u1
    • 1:9.21.0-1
    • 1:9.21.1-1
    • 1:9.21.10-1
    • 1:9.21.10-10
    • 1:9.21.10-2
    • 1:9.21.10-4
    • 1:9.21.10-5
    • 1:9.21.10-6
    • 1:9.21.10-7
    • 1:9.21.10-8
    • 1:9.21.10-9
    • 1:9.21.14-1
    • 1:9.21.18-1
    • 1:9.21.21-1
    • 1:9.21.22-1
    • 1:9.21.23-1
    • 1:9.21.25-1
    • 1:9.21.26-1
    • 1:9.21.3-1
    • 1:9.21.6-1
    • 1:9.21.7-1
    • 1:9.21.9-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • bind9 Ubuntu:Pro:14.04:LTS

    Versions
    • 1:9.9.3.dfsg.P2-4ubuntu1
    • 1:9.9.3.dfsg.P2-4ubuntu2
    • 1:9.9.3.dfsg.P2-4ubuntu3
    • 1:9.9.5.dfsg-2
    • 1:9.9.5.dfsg-3
    • 1:9.9.5.dfsg-3ubuntu0.1
    • 1:9.9.5.dfsg-3ubuntu0.2
    • 1:9.9.5.dfsg-3ubuntu0.3
    • 1:9.9.5.dfsg-3ubuntu0.4
    • 1:9.9.5.dfsg-3ubuntu0.5
    • 1:9.9.5.dfsg-3ubuntu0.6
    • 1:9.9.5.dfsg-3ubuntu0.7
    • 1:9.9.5.dfsg-3ubuntu0.8
    • 1:9.9.5.dfsg-3ubuntu0.9
    • 1:9.9.5.dfsg-3ubuntu0.10
    • 1:9.9.5.dfsg-3ubuntu0.11
    • 1:9.9.5.dfsg-3ubuntu0.12
    • 1:9.9.5.dfsg-3ubuntu0.13
    • 1:9.9.5.dfsg-3ubuntu0.14
    • 1:9.9.5.dfsg-3ubuntu0.15
    • 1:9.9.5.dfsg-3ubuntu0.16
    • 1:9.9.5.dfsg-3ubuntu0.17
    • 1:9.9.5.dfsg-3ubuntu0.18
    • 1:9.9.5.dfsg-3ubuntu0.19
    • 1:9.9.5.dfsg-3ubuntu0.19+esm1
    • 1:9.9.5.dfsg-3ubuntu0.19+esm2
    • 1:9.9.5.dfsg-3ubuntu0.19+esm3
    • 1:9.9.5.dfsg-3ubuntu0.19+esm4
    • 1:9.9.5.dfsg-3ubuntu0.19+esm5
    • 1:9.9.5.dfsg-3ubuntu0.19+esm6
    • 1:9.9.5.dfsg-3ubuntu0.19+esm7
    • 1:9.9.5.dfsg-3ubuntu0.19+esm9
    • 1:9.9.5.dfsg-3ubuntu0.19+esm10
    • 1:9.9.5.dfsg-3ubuntu0.19+esm11
    • 1:9.9.5.dfsg-3ubuntu0.19+esm12
    • 1:9.9.5.dfsg-3ubuntu0.19+esm13
    • 1:9.9.5.dfsg-3ubuntu0.19+esm14
    • 1:9.9.5.dfsg-3ubuntu0.19+esm15
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • bind9 Ubuntu:Pro:16.04:LTS

    Versions
    • 1:9.9.5.dfsg-11ubuntu1
    • 1:9.9.5.dfsg-12
    • 1:9.9.5.dfsg-12.1
    • 1:9.9.5.dfsg-12.1ubuntu1
    • 1:9.10.3.dfsg.P2-4
    • 1:9.10.3.dfsg.P2-5
    • 1:9.10.3.dfsg.P4-3
    • 1:9.10.3.dfsg.P4-4
    • 1:9.10.3.dfsg.P4-5
    • 1:9.10.3.dfsg.P4-8
    • 1:9.10.3.dfsg.P4-8ubuntu1
    • 1:9.10.3.dfsg.P4-8ubuntu1.1
    • 1:9.10.3.dfsg.P4-8ubuntu1.2
    • 1:9.10.3.dfsg.P4-8ubuntu1.3
    • 1:9.10.3.dfsg.P4-8ubuntu1.4
    • 1:9.10.3.dfsg.P4-8ubuntu1.5
    • 1:9.10.3.dfsg.P4-8ubuntu1.6
    • 1:9.10.3.dfsg.P4-8ubuntu1.7
    • 1:9.10.3.dfsg.P4-8ubuntu1.8
    • 1:9.10.3.dfsg.P4-8ubuntu1.9
    • 1:9.10.3.dfsg.P4-8ubuntu1.10
    • 1:9.10.3.dfsg.P4-8ubuntu1.11
    • 1:9.10.3.dfsg.P4-8ubuntu1.12
    • 1:9.10.3.dfsg.P4-8ubuntu1.14
    • 1:9.10.3.dfsg.P4-8ubuntu1.15
    • 1:9.10.3.dfsg.P4-8ubuntu1.16
    • 1:9.10.3.dfsg.P4-8ubuntu1.17
    • 1:9.10.3.dfsg.P4-8ubuntu1.18
    • 1:9.10.3.dfsg.P4-8ubuntu1.19
    • 1:9.10.3.dfsg.P4-8ubuntu1.19+esm1
    • 1:9.10.3.dfsg.P4-8ubuntu1.19+esm2
    • 1:9.10.3.dfsg.P4-8ubuntu1.19+esm3
    • 1:9.10.3.dfsg.P4-8ubuntu1.19+esm5
    • 1:9.10.3.dfsg.P4-8ubuntu1.19+esm6
    • 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7
    • 1:9.10.3.dfsg.P4-8ubuntu1.19+esm8
    • 1:9.10.3.dfsg.P4-8ubuntu1.19+esm9
    • 1:9.10.3.dfsg.P4-8ubuntu1.19+esm10
    • 1:9.10.3.dfsg.P4-8ubuntu1.19+esm11
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • bind9 Ubuntu:Pro:18.04:LTS

    Versions
    • 1:9.10.3.dfsg.P4-12.6ubuntu1
    • 1:9.11.2.P1-1ubuntu2
    • 1:9.11.2.P1-1ubuntu3
    • 1:9.11.2.P1-1ubuntu4
    • 1:9.11.2.P1-1ubuntu5
    • 1:9.11.3+dfsg-1ubuntu1
    • 1:9.11.3+dfsg-1ubuntu1.1
    • 1:9.11.3+dfsg-1ubuntu1.2
    • 1:9.11.3+dfsg-1ubuntu1.3
    • 1:9.11.3+dfsg-1ubuntu1.5
    • 1:9.11.3+dfsg-1ubuntu1.7
    • 1:9.11.3+dfsg-1ubuntu1.8
    • 1:9.11.3+dfsg-1ubuntu1.9
    • 1:9.11.3+dfsg-1ubuntu1.10
    • 1:9.11.3+dfsg-1ubuntu1.11
    • 1:9.11.3+dfsg-1ubuntu1.12
    • 1:9.11.3+dfsg-1ubuntu1.13
    • 1:9.11.3+dfsg-1ubuntu1.14
    • 1:9.11.3+dfsg-1ubuntu1.15
    • 1:9.11.3+dfsg-1ubuntu1.16
    • 1:9.11.3+dfsg-1ubuntu1.17
    • 1:9.11.3+dfsg-1ubuntu1.18
    • 1:9.11.3+dfsg-1ubuntu1.19+esm1
    • 1:9.11.3+dfsg-1ubuntu1.19+esm2
    • 1:9.11.3+dfsg-1ubuntu1.19+esm3
    • 1:9.11.3+dfsg-1ubuntu1.19+esm4
    • 1:9.11.3+dfsg-1ubuntu1.19+esm5
    • 1:9.11.3+dfsg-1ubuntu1.19+esm6
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • isc-dhcp Ubuntu:18.04:LTS

    Versions
    • 4.3.5-3ubuntu2
    • 4.3.5-3ubuntu3
    • 4.3.5-3ubuntu4
    • 4.3.5-3ubuntu5
    • 4.3.5-3ubuntu6
    • 4.3.5-3ubuntu7
    • 4.3.5-3ubuntu7.1
    • 4.3.5-3ubuntu7.2
    • 4.3.5-3ubuntu7.3
    • 4.3.5-3ubuntu7.4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • bind9 Ubuntu:Pro:20.04:LTS

    Versions
    • 1:9.11.5.P4+dfsg-5.1ubuntu2
    • 1:9.11.5.P4+dfsg-5.1ubuntu3
    • 1:9.11.5.P4+dfsg-5.1ubuntu4
    • 1:9.11.5.P4+dfsg-5.1ubuntu5
    • 1:9.11.14+dfsg-1ubuntu1
    • 1:9.11.14+dfsg-3ubuntu1
    • 1:9.16.0-1ubuntu3
    • 1:9.16.0-1ubuntu4
    • 1:9.16.0-1ubuntu5
    • 1:9.16.1-0ubuntu1
    • 1:9.16.1-0ubuntu2
    • 1:9.16.1-0ubuntu2.1
    • 1:9.16.1-0ubuntu2.2
    • 1:9.16.1-0ubuntu2.3
    • 1:9.16.1-0ubuntu2.4
    • 1:9.16.1-0ubuntu2.6
    • 1:9.16.1-0ubuntu2.7
    • 1:9.16.1-0ubuntu2.8
    • 1:9.16.1-0ubuntu2.9
    • 1:9.16.1-0ubuntu2.10
    • 1:9.16.1-0ubuntu2.11
    • 1:9.16.1-0ubuntu2.12
    • 1:9.16.1-0ubuntu2.14
    • 1:9.16.1-0ubuntu2.15
    • 1:9.16.1-0ubuntu2.16
    • 1:9.16.48-0ubuntu0.20.04.1
    • 1:9.18.28-0ubuntu0.20.04.1
    • 1:9.18.30-0ubuntu0.20.04.1
    • 1:9.18.30-0ubuntu0.20.04.2
    • 1:9.18.30-0ubuntu0.20.04.2+esm1
    • 1:9.18.30-0ubuntu0.20.04.2+esm2
    • 1:9.18.30-0ubuntu0.20.04.2+esm3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • bind9-libs Ubuntu:20.04:LTS

    Versions
    • 1:9.11.16+dfsg-3~build1
    • 1:9.11.16+dfsg-3~ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • bind9 Ubuntu:22.04:LTS

    Versions
    • 1:9.16.15-1ubuntu1
    • 1:9.16.15-1ubuntu2
    • 1:9.16.15-1ubuntu3
    • 1:9.18.0-2ubuntu1
    • 1:9.18.0-2ubuntu2
    • 1:9.18.0-2ubuntu3
    • 1:9.18.1-1ubuntu1
    • 1:9.18.1-1ubuntu1.1
    • 1:9.18.1-1ubuntu1.2
    • 1:9.18.1-1ubuntu1.3
    • 1:9.18.12-0ubuntu0.22.04.1
    • 1:9.18.12-0ubuntu0.22.04.2
    • 1:9.18.12-0ubuntu0.22.04.3
    • 1:9.18.18-0ubuntu0.22.04.1
    • 1:9.18.18-0ubuntu0.22.04.2
    • 1:9.18.24-0ubuntu0.22.04.1
    • 1:9.18.28-0ubuntu0.22.04.1
    • 1:9.18.30-0ubuntu0.22.04.1
    • 1:9.18.30-0ubuntu0.22.04.2
    • 1:9.18.39-0ubuntu0.22.04.1
    • 1:9.18.39-0ubuntu0.22.04.2
    • 1:9.18.39-0ubuntu0.22.04.3
    • 1:9.18.39-0ubuntu0.22.04.4
    • 1:9.18.39-0ubuntu0.22.04.5
    • 1:9.18.39-0ubuntu0.22.04.6
    • 1:9.18.39-0ubuntu0.22.04.7
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • bind9-libs Ubuntu:22.04:LTS

    Versions
    • 1:9.11.19+dfsg-2.1ubuntu1
    • 1:9.11.19+dfsg-2.1ubuntu2
    • 1:9.11.19+dfsg-2.1ubuntu3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • bind9 Ubuntu:24.04:LTS

    Versions
    • 1:9.18.18-0ubuntu2
    • 1:9.18.21-0ubuntu1
    • 1:9.18.24-0ubuntu3
    • 1:9.18.24-0ubuntu4
    • 1:9.18.24-0ubuntu5
    • 1:9.18.28-0ubuntu0.24.04.1
    • 1:9.18.30-0ubuntu0.24.04.1
    • 1:9.18.30-0ubuntu0.24.04.2
    • 1:9.18.39-0ubuntu0.24.04.1
    • 1:9.18.39-0ubuntu0.24.04.2
    • 1:9.18.39-0ubuntu0.24.04.3
    • 1:9.18.39-0ubuntu0.24.04.5
    • 1:9.18.39-0ubuntu0.24.04.6
    • 1:9.18.39-0ubuntu0.24.04.7
    • 1:9.18.39-0ubuntu0.24.04.8
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • isc-dhcp Ubuntu:24.04:LTS

    Versions
    • 4.4.3-P1-2ubuntu5
    • 4.4.3-P1-4ubuntu1
    • 4.4.3-P1-4ubuntu2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • bind9 Ubuntu:26.10

    Versions
    • 1:9.20.18-1ubuntu2
    • 1:9.20.23-1ubuntu1
    • 1:9.20.24-1ubuntu2
    • 1:9.20.24-1ubuntu3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • bind9 Ubuntu:26.04:LTS

    Versions
    • 1:9.20.11-1ubuntu2
    • 1:9.20.11-1ubuntu3
    • 1:9.20.18-1ubuntu1
    • 1:9.20.18-1ubuntu2
    • 1:9.20.18-1ubuntu2.1
    • 1:9.20.24-1ubuntu0.1
    • 1:9.20.24-1ubuntu0.2
    • 1:9.20.24-1ubuntu0.3
    • 1:9.20.24-1ubuntu0.4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • isc-dhcp Ubuntu:26.04:LTS

    Versions
    • 4.4.3-P1-4ubuntu2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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