ghsa-269w-9hm6-g22q
Vulnerability from github
Published
2022-05-24 19:05
Modified
2022-05-24 19:05
VLAI Severity ?
Details
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.
{ "affected": [], "aliases": [ "CVE-2021-34813" ], "database_specific": { "cwe_ids": [ "CWE-787" ], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2021-06-16T18:15:00Z", "severity": "CRITICAL" }, "details": "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.", "id": "GHSA-269w-9hm6-g22q", "modified": "2022-05-24T19:05:26Z", "published": "2022-05-24T19:05:26Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-34813" }, { "type": "WEB", "url": "https://gitlab.matrix.org/matrix-org/olm/-/commit/ccc0d122ee1b4d5e5ca4ec1432086be17d5f901b" }, { "type": "WEB", "url": "https://gitlab.matrix.org/matrix-org/olm/-/releases/3.2.3" }, { "type": "WEB", "url": "https://matrix.org/blog/2021/06/14/adventures-in-fuzzing-libolm" } ], "schema_version": "1.4.0", "severity": [] }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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