CVE-2021-34813
Summary
| CVE | CVE-2021-34813 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-06-16 18:15:00 UTC |
| Updated | 2021-06-23 14:29:00 UTC |
| Description | Matrix libolm before 3.2.3 allows a malicious Matrix homeserver to crash a client (while it is attempting to retrieve an Olm encrypted room key backup from the homeserver) because olm_pk_decrypt has a stack-based buffer overflow. Remote code execution might be possible for some nonstandard build configurations. |
Risk And Classification
Problem Types: CWE-787
NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| 3.2.3 · matrix-org / Olm · GitLab | MISC | gitlab.matrix.org | |
| Adventures in fuzzing libolm | Matrix.org | MISC | matrix.org | |
| olm_pk_decrypt: Ensure inputs are of correct length. (ccc0d122) · Commits · matrix-org / Olm · GitLab | MISC | gitlab.matrix.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 182094 Debian Security Update for olm (CVE-2021-34813)