Upstream information
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.
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 |
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 Security Advisories:
- openSUSE-SU-2020:0698-1, published Thu Dec 7 12:55:39 2023
List of released packages
Product(s) | Fixed package version(s) | References |
---|---|---|
SUSE Package Hub 12 SP1 |
| Patchnames: openSUSE-2020-698 |
SUSE Package Hub 15 SP1 |
| Patchnames: openSUSE-2020-698 |
openSUSE Leap 15.1 |
| Patchnames: openSUSE-2020-698 |
openSUSE Tumbleweed |
| Patchnames: openSUSE-Tumbleweed-2024-11157 |
SUSE Timeline for this CVE
CVE page created: Mon May 18 06:57:01 2020CVE page last modified: Tue Sep 3 19:15:56 2024