CVE-2023-2828

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Source
https://nvd.nist.gov/vuln/detail/CVE-2023-2828
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-2828.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-2828
Related
Published
2023-06-21T17:15:47Z
Modified
2024-09-18T03:23:22.193122Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

Every named instance configured to run as a recursive resolver maintains a cache database holding the responses to the queries it has recently sent to authoritative servers. The size limit for that cache database can be configured using the max-cache-size statement in the configuration file; it defaults to 90% of the total amount of memory available on the host. When the size of the cache reaches 7/8 of the configured limit, a cache-cleaning algorithm starts to remove expired and/or least-recently used RRsets from the cache, to keep memory use below the configured limit.

It has been discovered that the effectiveness of the cache-cleaning algorithm used in named can be severely diminished by querying the resolver for specific RRsets in a certain order, effectively allowing the configured max-cache-size limit to be significantly exceeded. This issue affects BIND 9 versions 9.11.0 through 9.16.41, 9.18.0 through 9.18.15, 9.19.0 through 9.19.13, 9.11.3-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1.

References

Affected packages

Debian:11 / bind9

Package

Name
bind9
Purl
pkg:deb/debian/bind9?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.16.42-1~deb11u1

Affected versions

1:9.*

1:9.16.15-1
1:9.16.21-1
1:9.16.21-1+hurd.1
1:9.16.22-1~deb11u1~bpo10+1
1:9.16.22-1~deb11u1
1:9.16.27-1~deb11u1~bpo10+1
1:9.16.27-1~deb11u1
1:9.16.33-1~deb11u1
1:9.16.37-1~deb11u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / bind9

Package

Name
bind9
Purl
pkg:deb/debian/bind9?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.18.16-1~deb12u1

Affected versions

1:9.*

1:9.18.12-1
1:9.18.13-1
1:9.18.16-1~deb12u1~bpo11+1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / bind9

Package

Name
bind9
Purl
pkg:deb/debian/bind9?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:9.18.16-1

Affected versions

1:9.*

1:9.18.12-1
1:9.18.13-1
1:9.18.16-1~deb12u1~bpo11+1
1:9.18.16-1~deb12u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}