Upstream information
Description
libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, a crafted HEIF sequence file where the saiz box declares more samples than actually exist in the track's chunk table causes a heap-buffer-overflow (out-of-bounds read) in the SampleAuxInfoReader constructor. The SampleAuxInfoReader constructor iterates over saiz->get_num_samples() samples but doesn't validate that this count is consistent with the number of chunks in the chunks vector. When saiz declares more samples than the chunks cover, the loop increments current_chunk past chunks.size(), causing an out-of-bounds read on the chunks vector. The vulnerability is triggered during file parsing (heif_context_read_from_file) without any additional user interaction. Any application using libheif to open untrusted HEIF files is affected. This issue has been fixed in version 1.22.0.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
| CVSS detail | SUSE |
|---|---|
| Base Score | 6.8 |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H |
| Attack Vector | Local |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality Impact | Low |
| Integrity Impact | None |
| Availability Impact | High |
| CVSSv3 Version | 3.1 |
| CVSS detail | SUSE |
|---|---|
| Base Score | 7 |
| Vector | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N |
| Attack Vector | Local |
| Attack Complexity | Low |
| Attack Requirements | None |
| Privileges Required | None |
| User Interaction | None |
| Vulnerable System Confidentiality Impact | Low |
| Vulnerable System Integrity Impact | None |
| Vulnerable System Availability Impact | High |
| Subsequent System Confidentiality Impact | None |
| Subsequent System Integrity Impact | None |
| Subsequent System Availability Impact | None |
| CVSSv4 Version | 4.0 |
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Please note that this evaluation state might be work in progress, incomplete or outdated.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 SP7 | libheif | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | libheif | Not affected |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP7 | libheif | Not affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | libheif | Not affected |
| SUSE Linux Enterprise Server 15 SP7 | libheif | Not affected |
| SUSE Linux Enterprise Server 16.0 | libheif | Not affected |
| SUSE Linux Enterprise Server 16.1 | libheif | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | libheif | Not affected |
| SUSE Linux Enterprise Server for SAP applications 16.0 | libheif | Not affected |
| SUSE Linux Enterprise Server for SAP applications 16.1 | libheif | Affected |
| openSUSE Leap 16.0 | libheif | Not affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4 | libheif | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | libheif | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | libheif | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | libheif | Not affected |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP4 | libheif | Not affected |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP5 | libheif | Not affected |
| SUSE Linux Enterprise Module for Desktop Applications 15 SP6 | libheif | Not affected |
| SUSE Linux Enterprise Server 15 SP4 | libheif | Not affected |
| SUSE Linux Enterprise Server 15 SP4-LTSS | libheif | Not affected |
| SUSE Linux Enterprise Server 15 SP5 | libheif | Not affected |
| SUSE Linux Enterprise Server 15 SP5-LTSS | libheif | Not affected |
| SUSE Linux Enterprise Server 15 SP6 | libheif | Not affected |
| SUSE Linux Enterprise Server 15 SP6-LTSS | libheif | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | libheif | Not affected |
| SUSE Manager Proxy 4.3 | libheif | Not affected |
| SUSE Manager Retail Branch Server 4.3 | libheif | Not affected |
| SUSE Manager Server 4.3 | libheif | Not affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Linux Enterprise Desktop 15 SP4 | libheif | Not affected |
| SUSE Linux Enterprise Desktop 15 SP5 | libheif | Not affected |
| SUSE Linux Enterprise Desktop 15 SP6 | libheif | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | libheif | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | libheif | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | libheif | Not affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | libheif | Not affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 | libheif | Not affected |
| SUSE Linux Enterprise Real Time 15 SP4 | libheif | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | libheif | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | libheif | Not affected |
| openSUSE Leap 15.4 | libheif | Not affected |
| openSUSE Leap 15.5 | libheif | Not affected |
| openSUSE Leap 15.6 | libheif | Not affected |
SUSE Timeline for this CVE
CVE page created: Thu May 21 17:00:21 2026CVE page last modified: Sat May 23 11:27:42 2026