Bug 277555
| Summary: | dns/unbound: Update to 1.19.2 | ||||||
|---|---|---|---|---|---|---|---|
| Product: | Ports & Packages | Reporter: | Jaap Akkerhuis <jaap> | ||||
| Component: | Individual Port(s) | Assignee: | freebsd-ports-bugs (Nobody) <ports-bugs> | ||||
| Status: | Closed Overcome By Events | ||||||
| Severity: | Affects Many People | CC: | cris, dvl | ||||
| Priority: | --- | Flags: | jaap:
maintainer-feedback+
|
||||
| Version: | Latest | ||||||
| Hardware: | Any | ||||||
| OS: | Any | ||||||
| URL: | https://nlnetlabs.nl/news/2024/Mar/07/unbound-1.19.2-released/ | ||||||
| See Also: | https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=277686 | ||||||
| Attachments: |
|
||||||
Perhaps outdated now by 277686 which updates to 1.19.3? Reopening until the other ticket is completed. Updated to 1.9.3 via 277686 |
Created attachment 249002 [details] patch to upgrade NOTE: there will be a new release shortly, so for users not using the "ede: yes" option, there is no need to upgrade. NLnet Labs Unbound version 1.18.0 up to and including version 1.19.1 contain a vulnerability that can cause denial of service by a certain code path that can lead to an infinite loop. Unbound 1.18.0 introduced a feature that removes EDE records from responses with size higher than the client's advertised buffer size. Before removing all the EDE records however, it would try to see if trimming the extra text fields on those records would result in an acceptable size while still retaining the EDE codes. Due to an unchecked condition, the code that trims the text of the EDE records could loop indefinitely. This happens when Unbound would reply with attached EDE information on a positive reply and the client's buffer size is smaller than the needed space to include EDE records. The vulnerability can only be triggered when the 'ede: yes' option is used; non default configuration.