Upstream information
Description
An issue was discovered in Xen through 4.11.x. The logic in oxenstored for handling writes depended on the order of evaluation of expressions making up a tuple. As indicated in section 7.7.3 "Operations on data structures" of the OCaml manual, the order of evaluation of subexpressions is not specified. In practice, different implementations behave differently. Thus, oxenstored may not enforce the configured quota-maxentity. This allows a malicious or buggy guest to write as many xenstore entries as it wishes, causing unbounded memory usage in oxenstored. This can lead to a system-wide DoS.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having moderate severity.
National Vulnerability Database | |
---|---|
Base Score | 4.9 |
Vector | AV:L/AC:L/Au:N/C:N/I:N/A:C |
Access Vector | Local |
Access Complexity | Low |
Authentication | None |
Confidentiality Impact | None |
Integrity Impact | None |
Availability Impact | Complete |
National Vulnerability Database | |
---|---|
Base Score | 6.5 |
Vector | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |
Access Vector | Local |
Access Complexity | Low |
Privileges Required | Low |
User Interaction | None |
Scope | Changed |
Confidentiality Impact | None |
Integrity Impact | None |
Availability Impact | High |
CVSSv3 Version | 3 |
- SUSE-SU-2018:3490-1, published Fri Oct 26 10:14:51 MDT 2018
- SUSE-SU-2018:4300-1, published Fri Dec 28 16:17:00 MST 2018
- openSUSE-SU-2018:4304-1, published Sat, 29 Dec 2018 15:11:23 +0100 (CET)
List of released packages
Product(s) | Fixed package version(s) | References |
---|---|---|
Image SLES15-EC2-CHOST-HVM-BYOS |
| |
SUSE CaaS Platform 3.0 |
| Patchnames: SUSE-CAASP-3.0-2018-2492 |
SUSE CaaS Platform ALL |
| Patchnames: SUSE-CAASP-ALL-2018-2492 |
SUSE Linux Enterprise Desktop 12 SP3 |
| Patchnames: SUSE-SLE-DESKTOP-12-SP3-2018-2492 |
SUSE Linux Enterprise Desktop 12 SP4 |
| |
SUSE Linux Enterprise High Performance Computing 12 SP5 SUSE Linux Enterprise Server 12 SP5 |
| |
SUSE Linux Enterprise Module for Basesystem 15 SP1 |
| |
SUSE Linux Enterprise Module for Basesystem 15 SP2 |
| |
SUSE Linux Enterprise Module for Basesystem 15 |
| Patchnames: SUSE-SLE-Module-Basesystem-15-2018-3063 |
SUSE Linux Enterprise Module for Server Applications 15 SP1 |
| |
SUSE Linux Enterprise Module for Server Applications 15 SP2 |
| |
SUSE Linux Enterprise Module for Server Applications 15 |
| Patchnames: SUSE-SLE-Module-Server-Applications-15-2018-3063 |
SUSE Linux Enterprise Server 12 SP3 SUSE Linux Enterprise Server for SAP Applications 12 SP3 |
| Patchnames: SUSE-SLE-SERVER-12-SP3-2018-2492 |
SUSE Linux Enterprise Server 12 SP4 |
| |
SUSE Linux Enterprise Software Development Kit 12 SP3 |
| Patchnames: SUSE-SLE-SDK-12-SP3-2018-2492 |
SUSE Linux Enterprise Software Development Kit 12 SP4 |
| |
SUSE Linux Enterprise Software Development Kit 12 SP5 |
| |
openSUSE Leap 15.0 |
| Patchnames: openSUSE-2019-1046 |
openSUSE Leap 42.3 |
| Patchnames: openSUSE-2018-1331 |
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.
Product(s) | Source package | State |
---|---|---|
HPE Helion OpenStack 8 | xen | Released |
SUSE CaaS Platform 3.0 | xen | Released |
SUSE Container as a Service Platform 2.0 | xen | Released |
SUSE Enterprise Storage 5 | xen | Released |
SUSE Linux Enterprise 15 Module for Basesystem | xen | Released |
SUSE Linux Enterprise 15 Module for Server Applications | xen | Released |
SUSE Linux Enterprise Desktop 12 SP3 | xen | Released |
SUSE Linux Enterprise Server 11 SP4 | xen | Not affected |
SUSE Linux Enterprise Server 12 SP3 | xen | Released |
SUSE Linux Enterprise Server 12 SP3 BCL | xen | Released |
SUSE Linux Enterprise Server 12 SP3 ESPOS | xen | Released |
SUSE Linux Enterprise Server 12 SP3 LTSS | xen | Released |
SUSE Linux Enterprise Server for SAP Applications 12 SP3 | xen | Released |
SUSE Linux Enterprise Software Development Kit 11 SP4 | xen | Not affected |
SUSE Linux Enterprise Software Development Kit 12 SP3 | xen | Released |
SUSE OpenStack Cloud 8 | xen | Released |
SUSE OpenStack Cloud Crowbar 8 | xen | Released |