Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2021-25219

Published: Oct 27, 2021 | Modified: Nov 21, 2024
CVSS 3.x
5.3
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
5.3 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2021-25219
CWEhttps://cwe.mitre.org/data/definitions/.html

In BIND 9.3.0 -> 9.11.35, 9.12.0 -> 9.16.21, and versions 9.9.3-S1 -> 9.11.35-S1 and 9.16.8-S1 -> 9.16.21-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.18 of the BIND 9.17 development branch, exploitation of broken authoritative servers using a flaw in response processing can cause degradation in BIND resolver performance. The way the lame cache is currently designed makes it possible for its internal data structures to grow almost infinitely, which may cause significant delays in client query processing.

Affected Software

NameVendorStart VersionEnd Version
BindIsc9.3.0 (including)9.11.36 (excluding)
BindIsc9.12.0 (including)9.16.22 (excluding)
BindIsc9.17.0 (including)9.17.19 (excluding)
BindIsc9.9.3-s1 (including)9.9.3-s1 (including)
BindIsc9.9.12-s1 (including)9.9.12-s1 (including)
BindIsc9.9.13-s1 (including)9.9.13-s1 (including)
BindIsc9.10.5-s1 (including)9.10.5-s1 (including)
BindIsc9.10.7-s1 (including)9.10.7-s1 (including)
BindIsc9.11.3-s1 (including)9.11.3-s1 (including)
BindIsc9.11.5-s3 (including)9.11.5-s3 (including)
BindIsc9.11.5-s5 (including)9.11.5-s5 (including)
BindIsc9.11.5-s6 (including)9.11.5-s6 (including)
BindIsc9.11.6-s1 (including)9.11.6-s1 (including)
BindIsc9.11.7-s1 (including)9.11.7-s1 (including)
BindIsc9.11.8-s1 (including)9.11.8-s1 (including)
BindIsc9.11.12-s1 (including)9.11.12-s1 (including)
BindIsc9.11.21-s1 (including)9.11.21-s1 (including)
BindIsc9.11.27-s1 (including)9.11.27-s1 (including)
BindIsc9.11.29-s1 (including)9.11.29-s1 (including)
BindIsc9.11.35-s1 (including)9.11.35-s1 (including)
BindIsc9.16.8-s1 (including)9.16.8-s1 (including)
BindIsc9.16.11-s1 (including)9.16.11-s1 (including)
BindIsc9.16.13-s1 (including)9.16.13-s1 (including)
BindIsc9.16.21-s1 (including)9.16.21-s1 (including)
Red Hat Enterprise Linux 8RedHatbind-32:9.11.36-3.el8*
Red Hat Enterprise Linux 8RedHatbind-32:9.11.36-3.el8*
Bind9Ubuntubionic*
Bind9Ubuntudevel*
Bind9Ubuntuesm-infra-legacy/trusty*
Bind9Ubuntuesm-infra/bionic*
Bind9Ubuntuesm-infra/focal*
Bind9Ubuntuesm-infra/xenial*
Bind9Ubuntufocal*
Bind9Ubuntuhirsute*
Bind9Ubuntuimpish*
Bind9Ubuntujammy*
Bind9Ubuntutrusty/esm*

References

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