GHSA-7945-5mcv-f2pp

Suggest an improvement
Source
https://github.com/advisories/GHSA-7945-5mcv-f2pp
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/03/GHSA-7945-5mcv-f2pp/GHSA-7945-5mcv-f2pp.json
JSON Data
https://api.test.osv.dev/v1/vulns/GHSA-7945-5mcv-f2pp
Aliases
Published
2024-03-08T17:33:46Z
Modified
2024-11-12T22:12:17.165596Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
LibOSDP vulnerable to a null pointer deref in osdp_reply_name
Details

Issue:

At ospdcommon.c, on the osdpreplyname function, any reply id between REPLYACK and REPLY_XRD is valid, but names array do not declare all of the range. On a case of an undefined reply id within the range, name will be null (name = names[reply_id - REPLY_ACK];). Null name will casue a crash on next line: if (name[0] == '\0') as null[0] is invalid.

Attack:

As this logic is not limited to a secure connection, attacker may trigger this vulnerability without any prior knowledge.

Impact

Denial of Service

Patch

The issue has been patched in 24409e98a260176765956ec766a04cb35984fab1

Database specific
{
    "nvd_published_at": "2024-11-12T16:15:26Z",
    "cwe_ids": [
        "CWE-476"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2024-03-08T17:33:46Z"
}
References

Affected packages

PyPI / libosdp

Package

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.0