CVE-2023-4408

CWE-407CWE-400 — Uncontrolled Resource Consumption12 documents8 sources
Severity
7.5HIGH
EPSS
0.3%
top 47.20%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
ISC Bind 9ISC BindFedoraproject Fedora+1 more
Timeline
PublishedFeb 13
Latest updateFeb 19

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 throu…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages5 packages

▶Alpinebind< 9.16.48-r0+7
▶Debianbind9< 1:9.16.48-1+3
▶Ubuntubind9< 1:9.16.48-0ubuntu0.20.04.1+1
▶NVDisc/bind9.0.0 — 9.16.45+15
▶CVEListV5isc/bind_99.0.0 — 9.16.45+5

Also affects: Ontap 9.14.1, 9.15.1, Fedora 38, 39

🔴Vulnerability Details

6
OSV
bind9 vulnerabilities↗2024-02-19
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CVEList
Parsing large DNS messages may cause excessive CPU load↗2024-02-13
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OSV
CVE-2023-4408: The DNS message parsing code in `named` includes a section whose computational complexity is overly high↗2024-02-13
▶
OSV
bind9 vulnerabilities↗2024-02-13
▶
OSV
CVE-2023-4408: The DNS message parsing code in `named` includes a section whose computational complexity is overly high↗2024-02-13
▶

📋Vendor Advisories

5
Ubuntu
Bind vulnerabilities↗2024-02-19
▶
Red Hat
bind9: Parsing large DNS messages may cause excessive CPU load↗2024-02-13
▶
Ubuntu
Bind vulnerabilities↗2024-02-13
▶
Microsoft
Parsing large DNS messages may cause excessive CPU load↗2024-02-13
▶
Debian
CVE-2023-4408: bind9 - The DNS message parsing code in `named` includes a section whose computational c...↗2023
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