CVEvulnerability
CVE-2019-25034
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2021-04-27
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-190
Description
Unbound before 1.9.5 allows an integer overflow in sldns_str2wire_dname_buf_origin, leading to an out-of-bounds write. 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
Affected configurations
• nlnetlabs unbound (< 1.9.5)
• debian debian linux 9.0
Related
Weakness · CWE (1)
- CWE-190 Integer Overflow or Wraparound weakness
References
- https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html Mailing List, Third Party Advisory
- https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/ Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210507-0007/ Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html Mailing List, Third Party Advisory
- https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/ Patch, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210507-0007/ Third Party Advisory