CVE-2018-16855

Upstream information

CVE-2018-16855 at MITRE

Description

An issue has been found in PowerDNS Recursor before version 4.1.8 where a remote attacker sending a DNS query can trigger an out-of-bounds memory read while computing the hash of the query for a packet cache lookup, possibly leading to a crash.

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SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having important severity.

CVSS v2 Scores

	National Vulnerability Database
Base Score	5
Vector	AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector	Network
Access Complexity	Low
Authentication	None
Confidentiality Impact	None
Integrity Impact	None
Availability Impact	Partial

CVSS v3 Scores

	National Vulnerability Database
Base Score	7.5
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Access Vector	Network
Access Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality Impact	None
Integrity Impact	None
Availability Impact	High
CVSSv3 Version	3

SUSE Bugzilla entries: 1116591 [RESOLVED / DUPLICATE], 1116592 [RESOLVED / FIXED]

SUSE Security Advisories:

• openSUSE-SU-2018:4062-1, published Mon, 10 Dec 2018 18:16:51 +0100 (CET)
• openSUSE-SU-2018:4152-1, published Mon, 17 Dec 2018 21:09:39 +0100 (CET)
• openSUSE-SU-2018:4177-1, published Tue, 18 Dec 2018 18:10:25 +0100 (CET)

List of released packages

Product(s)	Fixed package version(s)	References
SUSE Package Hub for SUSE Linux Enterprise 12 SP1	pdns-recursor >= 4.1.8-13.1 pdns-recursor-debuginfo >= 4.1.8-13.1 pdns-recursor-debugsource >= 4.1.8-13.1	Patchnames: openSUSE-2018-1524
openSUSE Leap 15.0	pdns-recursor >= 4.1.2-lp150.2.3.1 pdns-recursor-debuginfo >= 4.1.2-lp150.2.3.1 pdns-recursor-debugsource >= 4.1.2-lp150.2.3.1	Patchnames: openSUSE-2019-988