Upstream information

CVE-2020-10030 at MITRE

Description

An issue has been found in PowerDNS Recursor 4.1.0 up to and including 4.3.0. It allows an attacker (with enough privileges to change the system's hostname) to cause disclosure of uninitialized memory content via a stack-based out-of-bounds read. It only occurs on systems where gethostname() does not have '\0' termination of the returned string if the hostname is larger than the supplied buffer. (Linux systems are not affected because the buffer is always large enough. OpenBSD systems are not affected because the returned hostname always has '\0' termination.) Under some conditions, this issue can lead to the writing of one '\0' byte out-of-bounds on the stack, causing a denial of service or possibly arbitrary code execution.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
CVSS detail National Vulnerability Database
Base Score 6.5
Vector AV:N/AC:L/Au:S/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication Single
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
CVSS v3 Scores
CVSS detail National Vulnerability Database
Base Score 8.8
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1171553 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Package Hub 12 SP1
  • pdns-recursor >= 4.1.16-19.1
 Patchnames:
openSUSE-2020-698
SUSE Package Hub 15 SP1
  • pdns-recursor >= 4.1.12-bp151.4.3.1
 Patchnames:
openSUSE-2020-698
openSUSE Leap 15.1
  • pdns-recursor >= 4.1.12-lp151.3.3.1
 Patchnames:
openSUSE-2020-698
openSUSE Tumbleweed
  • pdns-recursor >= 4.5.5-1.3
 Patchnames:
openSUSE-Tumbleweed-2024-11157

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products past their end of life and not receiving proactive updates anymore.
SUSE Package Hub 12 SP1 pdns-recursor Released
SUSE Package Hub 15 SP1 pdns-recursor Released

SUSE Timeline for this CVE

CVE page created: Mon May 18 06:57:01 2020
CVE page last modified: Thu Dec 11 16:43:29 2025