CVE-2023-2829

6 documents6 sources
Severity
7.5HIGH
EPSS
0.1%
top 78.05%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
ISC Bind 9ISC Bind
Timeline
PublishedJun 21

Description

A `named` instance configured to run as a DNSSEC-validating recursive resolver with the Aggressive Use of DNSSEC-Validated Cache (RFC 8198) option (`synth-from-dnssec`) enabled can be remotely terminated using a zone with a malformed NSEC record. This issue affects BIND 9 versions 9.16.8-S1 through 9.16.41-S1 and 9.18.11-S1 through 9.18.15-S1.

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 Packages2 packages

▶NVDisc/bind9.16.8 — 9.16.41+1
▶CVEListV5isc/bind_99.16.8-S1 — 9.16.41-S1+1

🔴Vulnerability Details

2
GHSA
GHSA-jhg8-766m-r23j: A `named` instance configured to run as a DNSSEC-validating recursive resolver with the Aggressive Use of DNSSEC-Validated Cache (RFC 8198) option (`s↗2023-06-21
▶
CVEList
Malformed NSEC records can cause named to terminate unexpectedly when synth-from-dnssec is enabled↗2023-06-21
▶

📋Vendor Advisories

3
Red Hat
bind: DNSSEC-Validated cache can be remotely terminated with malformed NSEC record↗2023-06-21
▶
Microsoft
Malformed NSEC records can cause named to terminate unexpectedly when synth-from-dnssec is enabled↗2023-06-13
▶
Debian
CVE-2023-2829: bind9 - A `named` instance configured to run as a DNSSEC-validating recursive resolver w...↗2023
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