rlsa-2026:18160
Vulnerability from osv_rocky
Published
2026-05-29 16:03
Modified
2026-06-12 12:06
Summary
Moderate: libssh security update
Details

libssh is a library which implements the SSH protocol. It can be used to implement client and server applications.

Security Fix(es):

  • libssh: Buffer underflow in ssh_get_hexa() on invalid input (CVE-2026-0966)

  • libssh: Improper sanitation of paths received from SCP servers (CVE-2026-0964)

  • libssh: libssh: Denial of Service via improper configuration file handling (CVE-2026-0965)

  • libssh: libssh: Denial of Service via inefficient regular expression processing (CVE-2026-0967)

  • libssh: libssh: Denial of Service due to malformed SFTP message (CVE-2026-0968)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 10 Release Notes linked from the References section.

Severity
6.5 (Medium)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Credits
Rocky Enterprise Software Foundation
Red Hat
References
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Rocky Linux:10",
        "name": "libssh",
        "purl": "pkg:rpm/rocky-linux/libssh?distro=rocky-linux-10\u0026epoch=0"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "BaseOS"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:0.12.0-2.el10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [
    {
      "name": "Rocky Enterprise Software Foundation"
    },
    {
      "name": "Red Hat"
    }
  ],
  "details": "libssh is a library which implements the SSH protocol. It can be used to implement client and server applications.\n\nSecurity Fix(es):\n\n* libssh: Buffer underflow in ssh_get_hexa() on invalid input (CVE-2026-0966)\n\n* libssh: Improper sanitation of paths received from SCP servers (CVE-2026-0964)\n\n* libssh: libssh: Denial of Service via improper configuration file handling (CVE-2026-0965)\n\n* libssh: libssh: Denial of Service via inefficient regular expression processing (CVE-2026-0967)\n\n* libssh: libssh: Denial of Service due to malformed SFTP message (CVE-2026-0968)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Rocky Linux 10 Release Notes linked from the References section.",
  "id": "RLSA-2026:18160",
  "modified": "2026-06-12T12:06:09.222598Z",
  "published": "2026-05-29T16:03:24.060458Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:18160"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2433121"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2436979"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2436982"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2436981"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2436980"
    }
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Moderate: libssh security update",
  "upstream": [
    "CVE-2026-0964",
    "CVE-2026-0965",
    "CVE-2026-0966",
    "CVE-2026-0967",
    "CVE-2026-0968"
  ]
}



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