Upstream information
Description
GNU Bison before 3.7.1 has a use-after-free in _obstack_free in lib/obstack.c (called from gram_lex) when a '\0' byte is encountered. NOTE: there is a risk only if Bison is used with untrusted input, and the observed bug happens to cause unsafe behavior with a specific compiler/architecture. The bug report was intended to show that a crash may occur in Bison itself, not that a crash may occur in code that is generated by Bison.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having low severity.
| National Vulnerability Database | |
|---|---|
| Base Score | 7.1 |
| Vector | AV:N/AC:M/Au:N/C:N/I:N/A:C |
| Access Vector | Network |
| Access Complexity | Medium |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | Complete |
| National Vulnerability Database | SUSE | |
|---|---|---|
| Base Score | 5.5 | 3.3 |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
| Attack Vector | Local | Local |
| Attack Complexity | Low | Low |
| Privileges Required | None | Low |
| User Interaction | Required | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | None | None |
| Integrity Impact | None | None |
| Availability Impact | High | Low |
| 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Please note that this evaluation state might be work in progress, incomplete or outdated.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 Linux Enterprise Desktop 15 SP5 | bison | Not affected |
| SUSE Linux Enterprise Desktop 15 SP6 | bison | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | bison | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | bison | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | bison | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | bison | Not affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP5 | bison | Not affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP6 | bison | Not affected |
| SUSE Linux Enterprise Server 15 SP5 | bison | Not affected |
| SUSE Linux Enterprise Server 15 SP6 | bison | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | bison | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | bison | Not affected |
| SUSE Manager Proxy 4.3 | bison | Not affected |
| SUSE Manager Retail Branch Server 4.3 | bison | Not affected |
| SUSE Manager Server 4.3 | bison | Not affected |
| openSUSE Leap 15.5 | bison | Not affected |
| openSUSE Leap 15.6 | bison | Not affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP4 | bison | Not affected |
| SUSE Linux Enterprise High Performance Computing 12 SP5 | bison | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | bison | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | bison | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | bison | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | bison | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | bison | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | bison | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | bison | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | bison | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | bison | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP2 | bison | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | bison | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | bison | Not affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP2 | bison | Not affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP3 | bison | Not affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP4 | bison | Not affected |
| SUSE Linux Enterprise Server 12 SP5 | bison | Not affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS | bison | Not affected |
| SUSE Linux Enterprise Server 15 SP2 | bison | Not affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | bison | Not affected |
| SUSE Linux Enterprise Server 15 SP3 | bison | Not affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | bison | Not affected |
| SUSE Linux Enterprise Server 15 SP4 | bison | Not affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | bison | Not affected |
| SUSE Linux Enterprise Server 15-ESPOS | bison | Not affected |
| SUSE Linux Enterprise Server Business Critical Linux 15 SP1 | bison | Not affected |
| SUSE Linux Enterprise Server Business Critical Linux 15 SP2 | bison | Not affected |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | bison | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | bison | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | bison | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | bison | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | bison | Not affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| HPE Helion OpenStack 8 | bison | Not affected |
| SUSE CaaS Platform 4.0 | bison | Not affected |
| SUSE CaaS Platform 4.5 | bison | Not affected |
| SUSE Enterprise Storage 6 | bison | Not affected |
| SUSE Enterprise Storage 7 | bison | Not affected |
| SUSE Enterprise Storage 7.1 | bison | Not affected |
| SUSE Linux Enterprise Desktop 11 SP2 | bison | Not affected |
| SUSE Linux Enterprise Desktop 11 SP3 | bison | Not affected |
| SUSE Linux Enterprise Desktop 11 SP4 | bison | Not affected |
| SUSE Linux Enterprise Desktop 12 | bison | Not affected |
| SUSE Linux Enterprise Desktop 12 SP1 | bison | Not affected |
| SUSE Linux Enterprise Desktop 12 SP2 | bison | Not affected |
| SUSE Linux Enterprise Desktop 12 SP3 | bison | Not affected |
| SUSE Linux Enterprise Desktop 12 SP4 | bison | Not affected |
| SUSE Linux Enterprise Desktop 15 | bison | Not affected |
| SUSE Linux Enterprise Desktop 15 SP1 | bison | Not affected |
| SUSE Linux Enterprise Desktop 15 SP2 | bison | Not affected |
| SUSE Linux Enterprise Desktop 15 SP3 | bison | Not affected |
| SUSE Linux Enterprise High Performance Computing 12 SP4 | bison | Affected |
| SUSE Linux Enterprise High Performance Computing 15 | bison | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | bison | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | bison | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | bison | Not affected |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | bison | Not affected |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | bison | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 | bison | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | bison | Not affected |
| SUSE Linux Enterprise Module for Development Tools 15 | bison | Not affected |
| SUSE Linux Enterprise Module for Development Tools 15 SP1 | bison | Not affected |
| SUSE Linux Enterprise Point of Sale 11 SP3 | bison | Not affected |
| SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT | bison | Not affected |
| SUSE Linux Enterprise Real Time 15 SP2 | bison | Not affected |
| SUSE Linux Enterprise Real Time 15 SP3 | bison | Not affected |
| SUSE Linux Enterprise Real Time 15 SP4 | bison | Not affected |
| SUSE Linux Enterprise Server 11 SP1 | bison | Not affected |
| SUSE Linux Enterprise Server 11 SP1-LTSS | bison | Not affected |
| SUSE Linux Enterprise Server 11 SP2 | bison | Not affected |
| SUSE Linux Enterprise Server 11 SP2-LTSS | bison | Not affected |
| SUSE Linux Enterprise Server 11 SP3 | bison | Not affected |
| SUSE Linux Enterprise Server 11 SP3-LTSS | bison | Not affected |
| SUSE Linux Enterprise Server 11 SP4 | bison | Not affected |
| SUSE Linux Enterprise Server 11 SP4 LTSS | bison | Not affected |
| SUSE Linux Enterprise Server 11 SP4-LTSS | bison | Not affected |
| SUSE Linux Enterprise Server 12 | bison | Not affected |
| SUSE Linux Enterprise Server 12 SP1 | bison | Not affected |
| SUSE Linux Enterprise Server 12 SP1-LTSS | bison | Not affected |
| SUSE Linux Enterprise Server 12 SP2 | bison | Not affected |
| SUSE Linux Enterprise Server 12 SP2-BCL | bison | Not affected |
| SUSE Linux Enterprise Server 12 SP2-ESPOS | bison | Not affected |
| SUSE Linux Enterprise Server 12 SP2-LTSS | bison | Unsupported |
| SUSE Linux Enterprise Server 12 SP3 | bison | Not affected |
| SUSE Linux Enterprise Server 12 SP3-BCL | bison | Unsupported |
| SUSE Linux Enterprise Server 12 SP3-ESPOS | bison | Not affected |
| SUSE Linux Enterprise Server 12 SP3-LTSS | bison | Unsupported |
| SUSE Linux Enterprise Server 12 SP4 | bison | Not affected |
| SUSE Linux Enterprise Server 12 SP4-ESPOS | bison | Not affected |
| SUSE Linux Enterprise Server 12 SP4-LTSS | bison | Not affected |
| SUSE Linux Enterprise Server 12-LTSS | bison | Not affected |
| SUSE Linux Enterprise Server 15 | bison | Not affected |
| SUSE Linux Enterprise Server 15 SP1 | bison | Not affected |
| SUSE Linux Enterprise Server 15 SP1-BCL | bison | Not affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | bison | Not affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | bison | Not affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | bison | Not affected |
| SUSE Linux Enterprise Server 15-LTSS | bison | Not affected |
| SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 | bison | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 11 SP2 | bison | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 11 SP3 | bison | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 11 SP4 | bison | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 | bison | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP1 | bison | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | bison | Unsupported |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | bison | Unsupported |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | bison | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 | bison | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | bison | Not affected |
| SUSE Linux Enterprise Software Development Kit 11 SP2 | bison | Not affected |
| SUSE Linux Enterprise Software Development Kit 11 SP3 | bison | Not affected |
| SUSE Linux Enterprise Software Development Kit 11 SP4 | bison | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 | bison | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP1 | bison | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP2 | bison | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP3 | bison | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP4 | bison | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP5 | bison | Not affected |
| SUSE Manager Proxy 4.0 | bison | Not affected |
| SUSE Manager Proxy 4.1 | bison | Not affected |
| SUSE Manager Proxy 4.2 | bison | Not affected |
| SUSE Manager Retail Branch Server 4.0 | bison | Not affected |
| SUSE Manager Retail Branch Server 4.1 | bison | Not affected |
| SUSE Manager Retail Branch Server 4.2 | bison | Not affected |
| SUSE Manager Server 4.0 | bison | Not affected |
| SUSE Manager Server 4.1 | bison | Not affected |
| SUSE Manager Server 4.2 | bison | Not affected |
| SUSE OpenStack Cloud 7 | bison | Not affected |
| SUSE OpenStack Cloud 8 | bison | Not affected |
| SUSE OpenStack Cloud 9 | bison | Not affected |
| SUSE OpenStack Cloud Crowbar 8 | bison | Not affected |
| SUSE OpenStack Cloud Crowbar 9 | bison | Not affected |
| openSUSE Leap 15.3 | bison | Not affected |
| openSUSE Leap 15.4 | bison | Not affected |
| Container Status | ||
| bci/spack | bison | Not affected |
SUSE Timeline for this CVE
CVE page created: Tue Aug 25 20:48:10 2020CVE page last modified: Mon Nov 18 13:58:48 2024