Upstream information
Description
An internal reference count is held on the buffer pool, incremented every time a new buffer is created from the pool. The reference count is maintained as an int; on LP64 systems this can cause the reference count to overflow if the client creates a large number of wl_shm buffer objects, or if it can coerce the server to create a large number of external references to the buffer storage. With the reference count overflowing, a use-after-free can be constructed on the wl_shm_pool tracking structure, where values may be incremented or decremented; it may also be possible to construct a limited oracle to leak 4 bytes of server-side memory to the attacking client at a time.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having important severity.
National Vulnerability Database | SUSE | |
---|---|---|
Base Score | 9.8 | 7.8 |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Attack Vector | Network | Local |
Attack Complexity | Low | Low |
Privileges Required | None | Low |
User Interaction | None | None |
Scope | Unchanged | Unchanged |
Confidentiality Impact | High | High |
Integrity Impact | High | High |
Availability Impact | High | High |
CVSSv3 Version | 3.1 | 3.1 |
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Please note that this evaluation state might be work in progress, incomplete or outdated.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 under general support and receiving all security fixes. | ||
SUSE Enterprise Storage 7 | wayland | Affected |
SUSE Enterprise Storage 7.1 | wayland | Affected |
SUSE Linux Enterprise Desktop 15 SP4 | wayland | Affected |
SUSE Linux Enterprise High Performance Computing 12 SP5 | wayland | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP4 | wayland | Affected |
SUSE Linux Enterprise Micro 5.2 | wayland | Affected |
SUSE Linux Enterprise Micro 5.3 | wayland | Affected |
SUSE Linux Enterprise Micro 5.4 | wayland | Affected |
SUSE Linux Enterprise Module for Basesystem 15 SP4 | wayland | Affected |
SUSE Linux Enterprise Real Time 15 SP3 | wayland | Affected |
SUSE Linux Enterprise Server 12 SP5 | wayland | Affected |
SUSE Linux Enterprise Server 15 SP4 | wayland | Affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP5 | wayland | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP4 | wayland | Affected |
SUSE Linux Enterprise Software Development Kit 12 SP5 | wayland | Affected |
SUSE Manager Proxy 4.2 | wayland | Affected |
SUSE Manager Proxy 4.3 | wayland | Affected |
SUSE Manager Retail Branch Server 4.2 | wayland | Affected |
SUSE Manager Retail Branch Server 4.3 | wayland | Affected |
SUSE Manager Server 4.2 | wayland | Affected |
SUSE Manager Server 4.3 | wayland | Affected |
Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
SUSE Linux Enterprise High Performance Computing 15 | wayland | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP1 | wayland | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | wayland | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | wayland | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP2 | wayland | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | wayland | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | wayland | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP3 | wayland | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | wayland | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | wayland | Affected |
SUSE Linux Enterprise High Performance Computing 15-ESPOS | wayland | Affected |
SUSE Linux Enterprise High Performance Computing 15-LTSS | wayland | Affected |
SUSE Linux Enterprise Module for Basesystem 15 SP1 | wayland | Affected |
SUSE Linux Enterprise Module for Basesystem 15 SP2 | wayland | Affected |
SUSE Linux Enterprise Module for Basesystem 15 SP3 | wayland | Affected |
SUSE Linux Enterprise Server 12 SP4 | wayland | Affected |
SUSE Linux Enterprise Server 15 SP1 | wayland | Affected |
SUSE Linux Enterprise Server 15 SP1-LTSS | wayland | Affected |
SUSE Linux Enterprise Server 15 SP2 | wayland | Affected |
SUSE Linux Enterprise Server 15 SP2-LTSS | wayland | Affected |
SUSE Linux Enterprise Server 15 SP3 | wayland | Affected |
SUSE Linux Enterprise Server 15 SP3-LTSS | wayland | Affected |
SUSE Linux Enterprise Server 15-ESPOS | wayland | Affected |
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 | wayland | Affected |
SUSE Linux Enterprise Server Business Critical Linux 15 SP2 | wayland | Affected |
SUSE Linux Enterprise Server Business Critical Linux 15 SP3 | wayland | Affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP4 | wayland | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 | wayland | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP1 | wayland | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP2 | wayland | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP3 | wayland | Affected |
Products past their end of life and not receiving proactive updates anymore. | ||
SUSE CaaS Platform 4.0 | wayland | Affected |
SUSE CaaS Platform 4.5 | wayland | Affected |
SUSE Enterprise Storage 6 | wayland | Affected |
SUSE Linux Enterprise Desktop 12 SP3 | wayland | Affected |
SUSE Linux Enterprise Desktop 12 SP4 | wayland | Affected |
SUSE Linux Enterprise Desktop 15 | wayland | Affected |
SUSE Linux Enterprise Desktop 15 SP1 | wayland | Affected |
SUSE Linux Enterprise Desktop 15 SP2 | wayland | Affected |
SUSE Linux Enterprise Desktop 15 SP3 | wayland | Affected |
SUSE Linux Enterprise Micro 5.0 | wayland | Affected |
SUSE Linux Enterprise Module for Basesystem 15 | wayland | Affected |
SUSE Linux Enterprise Real Time 15 SP2 | wayland | Affected |
SUSE Linux Enterprise Server 12 SP3 | wayland | Affected |
SUSE Linux Enterprise Server 15 | wayland | Affected |
SUSE Linux Enterprise Server 15 SP1-BCL | wayland | Affected |
SUSE Linux Enterprise Server 15 SP2-BCL | wayland | Affected |
SUSE Linux Enterprise Server 15 SP3-BCL | wayland | Affected |
SUSE Linux Enterprise Server 15-LTSS | wayland | Affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP3 | wayland | Affected |
SUSE Linux Enterprise Software Development Kit 12 SP3 | wayland | Affected |
SUSE Linux Enterprise Software Development Kit 12 SP4 | wayland | Affected |
SUSE Manager Proxy 4.0 | wayland | Affected |
SUSE Manager Proxy 4.1 | wayland | Affected |
SUSE Manager Retail Branch Server 4.0 | wayland | Affected |
SUSE Manager Retail Branch Server 4.1 | wayland | Affected |
SUSE Manager Server 4.0 | wayland | Affected |
SUSE Manager Server 4.1 | wayland | Affected |
SUSE Timeline for this CVE
CVE page created: Tue Sep 14 16:30:10 2021CVE page last modified: Tue Mar 7 14:59:26 2023