CVE-2021-39536
Publication date 20 September 2021
Last updated 25 August 2025
Ubuntu priority
Description
An issue was discovered in libxsmm through v1.16.1-93. The JIT code has a heap-based buffer overflow.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| libxsmm | ||
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic | Not in release | |
| 16.04 LTS xenial | Not in release | |
| 14.04 LTS trusty | Not in release |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
8.8 · High
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
References
Other references
- https://github.com/hfp/libxsmm/issues/402
- https://github.com/hfp/libxsmm/commit/d6984918886d4bd6be241ff3e6af799f4aba3375
- https://github.com/hfp/libxsmm/commit/c24027d07eef23411a56958e52afad5ee6db6393
- https://github.com/hfp/libxsmm/commit/3f417e5e0670b066d558052fd32fc8093c81ee94 (1.16.3)
- https://www.cve.org/CVERecord?id=CVE-2021-39536