Upstream information
Description
cmark-gfm is GitHub's extended version of the C reference implementation of CommonMark. Prior to versions 0.29.0.gfm.3 and 0.28.3.gfm.21, an integer overflow in cmark-gfm's table row parsing `table.c:row_from_string` may lead to heap memory corruption when parsing tables who's marker rows contain more than UINT16_MAX columns. The impact of this heap corruption ranges from Information Leak to Arbitrary Code Execution depending on how and where `cmark-gfm` is used. If `cmark-gfm` is used for rendering remote user controlled markdown, this vulnerability may lead to Remote Code Execution (RCE) in applications employing affected versions of the `cmark-gfm` library. This vulnerability has been patched in the following cmark-gfm versions 0.29.0.gfm.3 and 0.28.3.gfm.21. A workaround is available. The vulnerability exists in the table markdown extensions of cmark-gfm. Disabling the table extension will prevent this vulnerability from being triggered.SUSE information
Overall state of this security issue: Does not affect SUSE products
This issue is currently rated as having critical severity.
| National Vulnerability Database | |
|---|---|
| Base Score | 7.5 |
| Vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| Access Vector | Network |
| Access Complexity | Low |
| Authentication | None |
| Confidentiality Impact | Partial |
| Integrity Impact | Partial |
| Availability Impact | Partial |
| National Vulnerability Database | |
|---|---|
| Base Score | 9.8 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality Impact | High |
| Integrity Impact | High |
| Availability Impact | High |
| CVSSv3 Version | 3.1 |
List of released packages
| Product(s) | Fixed package version(s) | References |
|---|---|---|
| SUSE Liberty Linux 8 |
| Patchnames: RHSA-2022:5597 |
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Please note that this evaluation state might be work in progress, incomplete or outdated.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 SP6 | cmark | Analysis |
| SUSE Linux Enterprise Desktop 15 SP7 | cmark | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | cmark | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | cmark | Analysis |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | cmark | Analysis |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | cmark | Analysis |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | cmark | Analysis |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 | cmark | Analysis |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | cmark | Analysis |
| SUSE Linux Enterprise Server 15 SP6 | cmark | Analysis |
| SUSE Linux Enterprise Server 15 SP7 | cmark | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | cmark | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | cmark | Analysis |
| SUSE Manager Proxy 4.3 | cmark | Analysis |
| SUSE Manager Retail Branch Server 4.3 | cmark | Analysis |
| SUSE Manager Server 4.3 | cmark | Analysis |
| openSUSE Leap 15.6 | cmark | Analysis |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4 | cmark | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | cmark | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | cmark | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | cmark | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | cmark | Analysis |
| SUSE Linux Enterprise Module for Development Tools 15 SP4 | cmark | Analysis |
| SUSE Linux Enterprise Module for Development Tools 15 SP5 | cmark | Analysis |
| SUSE Linux Enterprise Server 15 SP4 | cmark | Analysis |
| SUSE Linux Enterprise Server 15 SP4-LTSS | cmark | Analysis |
| SUSE Linux Enterprise Server 15 SP5 | cmark | Analysis |
| SUSE Linux Enterprise Server 15 SP5-LTSS | cmark | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | cmark | Analysis |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | cmark | Analysis |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Linux Enterprise Desktop 15 SP4 | cmark | Analysis |
| SUSE Linux Enterprise Desktop 15 SP5 | cmark | Analysis |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | cmark | Analysis |
| SUSE Linux Enterprise Module for Package Hub 15 SP4 | cmark | Analysis |
| SUSE Linux Enterprise Real Time 15 SP4 | cmark | Analysis |
| openSUSE Leap 15.4 | cmark | Analysis |
| openSUSE Leap 15.5 | cmark | Analysis |
SUSE Timeline for this CVE
CVE page created: Fri Mar 4 01:00:37 2022CVE page last modified: Wed Apr 30 14:33:02 2025