CVE-2023-4408

HIGH

BIND <9.16.45-9.19.19 - DoS

Title source: llm

Description

The DNS message parsing code in `named` includes a section whose computational complexity is overly high. It does not cause problems for typical DNS traffic, but crafted queries and responses may cause excessive CPU load on the affected `named` instance by exploiting this flaw. This issue affects both authoritative servers and recursive resolvers. This issue affects BIND 9 versions 9.0.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.

References (7)

[Mailing List, Third Party Advisory] http://www.openwall.com/lists/oss-security/2024/02/13/1

[Vendor Advisory] https://kb.isc.org/docs/cve-2023-4408

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/[email protected]/message/HVRDSJVZKMCXKKPP6PNR62T7RWZ3YSDZ/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/[email protected]/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/[email protected]/message/RGS7JN6FZXUSTC2XKQHH27574XOULYYJ/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/[email protected]/message/ZDZFMEKQTZ4L7RY46FCENWFB5MDT263R/

[Third Party Advisory] https://security.netapp.com/advisory/ntap-20240426-0001/

Scores

CVSS v3 7.5

EPSS 0.0029

EPSS Percentile 52.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Classification

CWE

CWE-407

Status published

Affected Products (18)

netapp/ontap

netapp/ontap

fedoraproject/fedora

fedoraproject/fedora

isc/bind < 9.16.45

isc/bind

isc/bind

isc/bind

isc/bind

isc/bind

isc/bind

isc/bind

isc/bind

isc/bind

isc/bind

... and 3 more

Timeline

Published Feb 13, 2024

Tracked Since Feb 18, 2026