high7.5
CVE-2019-16866
Unbound before 1.9.4 accesses uninitialized memory, which allows remote attackers to trigger a crash via a crafted NOTIFY query.
Impact
Unbound before 1.9.4 accesses uninitialized memory, which allows remote attackers to trigger a crash via a crafted NOTIFY query. The source IP address of the query must match an access-control rule.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Nlnetlabs | Unbound | before 1.9.4 |
| Canonical | Ubuntu Linux | Version 19.04 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/NLnetLabs/unbound/blob/release-1.9.4/doc/Changelog
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E65NCWZZB2D75ZIYWPXKMVGSGNYW4JMC/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MLRHE7TQFAOV4MB2ELTOGESZYUL65NUJ/
- https://nlnetlabs.nl/downloads/unbound/CVE-2019-16866.txt
- https://seclists.org/bugtraq/2019/Oct/23
- https://usn.ubuntu.com/4149-1/
- https://www.debian.org/security/2019/dsa-4544