ghsa-q9x7-4rf7-4xq2
Vulnerability from github
Published
2025-07-25 18:30
Modified
2025-07-25 18:30
Severity ?
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Details

A flaw was found in the SFTP server message decoding logic of libssh. The issue occurs due to an incorrect packet length check that allows an integer overflow when handling large payload sizes on 32-bit systems. This issue leads to failed memory allocation and causes the server process to crash, resulting in a denial of service.

Show details on source website

To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-5449"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-25T18:15:26Z",
    "severity": "MODERATE"
  },
  "details": "A flaw was found in the SFTP server message decoding logic of libssh. The issue occurs due to an incorrect packet length check that allows an integer overflow when handling large payload sizes on 32-bit systems. This issue leads to failed memory allocation and causes the server process to crash, resulting in a denial of service.",
  "id": "GHSA-q9x7-4rf7-4xq2",
  "modified": "2025-07-25T18:30:41Z",
  "published": "2025-07-25T18:30:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-5449"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2025-5449"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2369705"
    },
    {
      "type": "WEB",
      "url": "https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.11\u0026id=261612179f740bc62ba363d98b3bd5e5573a811f"
    },
    {
      "type": "WEB",
      "url": "https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.11\u0026id=3443aec90188d6aab9282afc80a81df5ab72c4da"
    },
    {
      "type": "WEB",
      "url": "https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.11\u0026id=5504ff40515439a5fecbb17da7483000c4d12eb7"
    },
    {
      "type": "WEB",
      "url": "https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.11\u0026id=78485f446af9b30e37eb8f177b81940710d54496"
    },
    {
      "type": "WEB",
      "url": "https://git.libssh.org/projects/libssh.git/commit/?h=stable-0.11\u0026id=f79ec51b7fd519dbc5737a7ba826e3ed093f6ceb"
    },
    {
      "type": "WEB",
      "url": "https://www.libssh.org/security/advisories/CVE-2025-5449.txt"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




  • 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.