VulnerabilityModified
CVE-2019-25033
Unbound before 1.9.5 allows an integer overflow in the regional allocator via the ALIGN_UP macro.
CRITICAL 9.8EPSS 1.78%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.78%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.78% probability · 77th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- nlnetlabs/unbound · debian/debian linux
- Source
- cve@mitre.org
References
- https://lists.debian.org/debian-lts-announce/2021/05/msg00007.htmlMailing List, Third Party Advisory
- https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/Not Applicable, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210507-0007/Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/05/msg00007.htmlMailing List, Third Party Advisory
- https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/Not Applicable, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210507-0007/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.