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Vulnerability
CVE-2019-16866
Published:
2019-10-03
Description:
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.
Type:
CWE-119
(Improper Restriction of Operations within the Bounds of a Memory Buffer)
CVSS2
=> (AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Nlnetlabs
->
Unbound
Canonical
->
Ubuntu linux
References:
https://github.com/NLnetLabs/unbound/blob/release-1.9.4/doc/Changelog
https://nlnetlabs.nl/downloads/unbound/CVE-2019-16866.txt
https://usn.ubuntu.com/4149-1/
https://www.debian.org/security/2019/dsa-4544
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