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CVE-2021-25219

medium · 5.3

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.

5.3
CVSS
11.0%
EPSS (exploit prob.)
96th
EPSS percentile
2021-10-27
Published

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

Affected products

VendorProductAffected versions
iscbind>= 9.3.0, < 9.11.36
iscbind>= 9.12.0, < 9.16.22
iscbind>= 9.17.0, < 9.17.19
iscbind9.9.3
iscbind9.9.12
iscbind9.9.13
iscbind9.10.5
iscbind9.10.7
iscbind9.11.3
iscbind9.11.5
iscbind9.11.5
iscbind9.11.5
iscbind9.11.6
iscbind9.11.7
iscbind9.11.8
iscbind9.11.12
iscbind9.11.21
iscbind9.11.27
iscbind9.11.29
iscbind9.11.35
iscbind9.16.8
iscbind9.16.11
iscbind9.16.13
iscbind9.16.21
debiandebian_linux9.0
debiandebian_linux10.0
debiandebian_linux11.0
fedoraprojectfedora33
fedoraprojectfedora34
fedoraprojectfedora35
netapph300s_firmwareall versions
netapph300sall versions
netapph500s_firmwareall versions
netapph500sall versions
netapph700s_firmwareall versions
netapph700sall versions
netapph300e_firmwareall versions
netapph300eall versions
netapph500e_firmwareall versions
netapph500eall versions

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2021-25219