CVE-2019-16866CWE-755CWE-908

CVE-2019-16866

High · published October 3, 2019

CVSS v3.1
7.5
EPSS
4%
Percentile
89.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.03506 · 89.1th percentile
Weaknesses
CWE-755 · Improper Handling of Exceptional Conditions; CWE-908 · Use of Uninitialized Resource
Published
2019-10-03T23:15Z
Affected products (2)
ProductVersionsFixed in
nlnetlabs/unbound< 1.9.41.9.4
canonical/ubuntu_linuxall versions—
References (14)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E65NCWZZB2D75ZIYWPXKMVGSGNYW4JMC/ · af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MLRHE7TQFAOV4MB2ELTOGESZYUL65NUJ/ · af854a3a-2127-422b-91ae-364da2661108https://nlnetlabs.nl/downloads/unbound/CVE-2019-16866.txt · af854a3a-2127-422b-91ae-364da2661108https://seclists.org/bugtraq/2019/Oct/23 · af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4149-1/ · af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2019/dsa-4544 · af854a3a-2127-422b-91ae-364da2661108https://github.com/NLnetLabs/unbound/blob/release-1.9.4/doc/Changelog · [email protected]https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E65NCWZZB2D75ZIYWPXKMVGSGNYW4JMC/ · [email protected]https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MLRHE7TQFAOV4MB2ELTOGESZYUL65NUJ/ · [email protected]https://nlnetlabs.nl/downloads/unbound/CVE-2019-16866.txt · [email protected]https://seclists.org/bugtraq/2019/Oct/23 · [email protected]https://usn.ubuntu.com/4149-1/ · [email protected]https://www.debian.org/security/2019/dsa-4544 · [email protected]https://github.com/NLnetLabs/unbound/blob/release-1.9.4/doc/Changelog · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 03 OCT 18:53Z
    Unbound before 1.9.4 accesses uninitialized memory, which allows remote attackers to trigger a crash via a crafted NOTIFY query
    cvelistv5