CVE-2022-3488

named may terminate unexpectedly when processing ECS options in repeated responses to iterative queries

High · published January 25, 2023

CVSS v3.1
7.5
EPSS
19%
Percentile
97.3
In the wild
Unconfirmed
What it is

Processing of repeated responses to the same query, where both responses contain ECS pseudo-options, but where the first is broken in some way, can cause BIND to exit with an assertion failure.

'Broken' in this context is anything that would cause the resolver to reject the query response, such as a mismatch between query and answer name.

This issue affects BIND 9 versions 9.11.4-S1 through 9.11.37-S1 and 9.16.8-S1 through 9.16.36-S1.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.19193 · 97.3th percentile
Published
2023-01-25T21:37Z
EPSS history
Timeline
  • 25 JAN 21:37Z
    named may terminate unexpectedly when processing ECS options in repeated responses to iterative queries
    cvelistv5