Packages
- unbound - validating, recursive, caching DNS resolver
Details
It was discovered that Unbound incorrectly handled delegations with a large
number of non-responsive nameservers. A remote attacker could possibly use
this issue to cause Unbound to consume resources, leading to a denial of
service.
It was discovered that Unbound incorrectly handled delegations with a large
number of non-responsive nameservers. A remote attacker could possibly use
this issue to cause Unbound to consume resources, leading to a denial of
service.
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 22.10 kinetic | unbound – 1.16.2-1ubuntu0.1 | ||
| libunbound8 – 1.16.2-1ubuntu0.1 | |||
| 22.04 LTS jammy | unbound – 1.13.1-1ubuntu5.3 | ||
| libunbound8 – 1.13.1-1ubuntu5.3 | |||
| 20.04 LTS focal | unbound – 1.9.4-2ubuntu1.4 | ||
| libunbound8 – 1.9.4-2ubuntu1.4 | |||
| 18.04 LTS bionic | libunbound2 – 1.6.7-1ubuntu2.6 | ||
| unbound – 1.6.7-1ubuntu2.6 | |||
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