Improper Handling of Exceptional Conditions Affecting unbound package, versions <1.9.0-2+deb10u1
Snyk CVSS
Attack Complexity
Low
Availability
High
Threat Intelligence
EPSS
16.56% (96th
percentile)
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-DEBIAN10-UNBOUND-471741
- published 3 Oct 2019
- disclosed 3 Oct 2019
How to fix?
Upgrade Debian:10
unbound
to version 1.9.0-2+deb10u1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream unbound
package and not the unbound
package as distributed by Debian
.
See How to fix?
for Debian:10
relevant fixed versions and status.
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.
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16866
- https://security-tracker.debian.org/tracker/CVE-2019-16866
- https://seclists.org/bugtraq/2019/Oct/23
- https://www.debian.org/security/2019/dsa-4544
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/E65NCWZZB2D75ZIYWPXKMVGSGNYW4JMC/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MLRHE7TQFAOV4MB2ELTOGESZYUL65NUJ/
- https://github.com/NLnetLabs/unbound/blob/release-1.9.4/doc/Changelog
- https://nlnetlabs.nl/downloads/unbound/CVE-2019-16866.txt
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-16866
- https://usn.ubuntu.com/4149-1/
- 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/