usn-8511-1
Vulnerability from osv_ubuntu
Published
2026-07-06 12:37
Modified
2026-07-06 12:37
Summary
socat vulnerabilities
Details

It was discovered that socat incorrectly handled the SOCKS5 proxy server reply parser. A remote attacker could possibly use this issue to execute arbitrary code. (CVE-2026-56123)

It was discovered that socat incorrectly handled a sample script. A local attacker could possibly use this issue to overwrite arbitrary files. This issue only affected Ubuntu 24.04 LTS. (CVE-2024-54661)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2024-54661",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-56123",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "socat",
            "binary_version": "1.8.0.0-4ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "socat",
        "purl": "pkg:deb/ubuntu/socat@1.8.0.0-4ubuntu0.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.8.0.0-4ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.7.4.4-2",
        "1.8.0.0-4",
        "1.8.0.0-4build1",
        "1.8.0.0-4build2",
        "1.8.0.0-4build3"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-56123",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:26.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "socat",
            "binary_version": "1.8.1.1-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "socat",
        "purl": "pkg:deb/ubuntu/socat@1.8.1.1-1ubuntu0.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.8.1.1-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.8.0.3-1build1",
        "1.8.1.0-1",
        "1.8.1.0-2",
        "1.8.1.1-1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that socat incorrectly handled the SOCKS5 proxy server\nreply parser. A remote attacker could possibly use this issue to execute\narbitrary code. (CVE-2026-56123)\n\nIt was discovered that socat incorrectly handled a sample script. A local\nattacker could possibly use this issue to overwrite arbitrary files. This\nissue only affected Ubuntu 24.04 LTS. (CVE-2024-54661)",
  "id": "USN-8511-1",
  "modified": "2026-07-06T12:37:17Z",
  "published": "2026-07-06T12:37:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8511-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-54661"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-56123"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "socat vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2024-54661",
    "UBUNTU-CVE-2026-56123"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.