Description
Unbound before 1.9.5 allows an integer overflow in the regional allocator via the ALIGN_UP macro. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited
References
https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html
https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/
https://security.netapp.com/advisory/ntap-20210507-0007/
https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html
https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/
https://security.netapp.com/advisory/ntap-20210507-0007/
CVSS impact metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8 · Critical
Information
Source identifier
Vulnerability status
Modified
Published
2021-04-27T06:15:07.507Z
5 years agoLast modified
2026-06-17T02:31:31.177Z
3 months ago