usn-7573-2
Vulnerability from osv_ubuntu
Published
2025-06-18 09:54
Modified
2026-06-25 10:46
Summary
xorg-server, xorg-server-hwe-16.04, xorg-server-hwe-18.04 vulnerabilities
Details

USN-7573-1 fixed several vulnerabilities in X.Org. This update provides the corresponding update for Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.

Original advisory details:

Nils Emmerich discovered that the X.Org X Server incorrectly handled certain memory operations. An attacker could use these issues to cause the X Server to crash, leading to a denial of service, obtain sensitive information, or possibly execute arbitrary code.

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
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              "id": "CVE-2025-49175",
              "severity": [
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                },
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            },
            {
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                {
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                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-49178",
              "severity": [
                {
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                  "type": "CVSS_V3"
                },
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                }
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            },
            {
              "id": "CVE-2025-49179",
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                },
                {
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              ]
            },
            {
              "id": "CVE-2025-49180",
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              ]
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              "id": "CVE-2025-49178",
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                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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              "id": "CVE-2025-49179",
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              ]
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                },
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                }
              ]
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          ],
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        }
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        ]
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    {
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              "id": "CVE-2025-49175",
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                  "type": "CVSS_V3"
                },
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              ]
            },
            {
              "id": "CVE-2025-49176",
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                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-49178",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-49179",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H",
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                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-49180",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:18.04:LTS"
        }
      },
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            "binary_version": "2:1.20.8-2ubuntu2.2~18.04.11+esm5"
          },
          {
            "binary_name": "xserver-xephyr-hwe-18.04",
            "binary_version": "2:1.20.8-2ubuntu2.2~18.04.11+esm5"
          },
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            "binary_name": "xserver-xorg-core-hwe-18.04",
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            "binary_name": "xserver-xorg-legacy-hwe-18.04",
            "binary_version": "2:1.20.8-2ubuntu2.2~18.04.11+esm5"
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        "2:1.20.8-2ubuntu2.2~18.04.5",
        "2:1.20.8-2ubuntu2.2~18.04.6",
        "2:1.20.8-2ubuntu2.2~18.04.7",
        "2:1.20.8-2ubuntu2.2~18.04.8",
        "2:1.20.8-2ubuntu2.2~18.04.9",
        "2:1.20.8-2ubuntu2.2~18.04.10",
        "2:1.20.8-2ubuntu2.2~18.04.11",
        "2:1.20.8-2ubuntu2.2~18.04.11+esm1",
        "2:1.20.8-2ubuntu2.2~18.04.11+esm2",
        "2:1.20.8-2ubuntu2.2~18.04.11+esm3",
        "2:1.20.8-2ubuntu2.2~18.04.11+esm4"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2025-49175",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-49176",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-49178",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-49179",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-49180",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "xdmx",
            "binary_version": "2:1.20.13-1ubuntu1~20.04.20+esm1"
          },
          {
            "binary_name": "xdmx-tools",
            "binary_version": "2:1.20.13-1ubuntu1~20.04.20+esm1"
          },
          {
            "binary_name": "xnest",
            "binary_version": "2:1.20.13-1ubuntu1~20.04.20+esm1"
          },
          {
            "binary_name": "xorg-server-source",
            "binary_version": "2:1.20.13-1ubuntu1~20.04.20+esm1"
          },
          {
            "binary_name": "xserver-common",
            "binary_version": "2:1.20.13-1ubuntu1~20.04.20+esm1"
          },
          {
            "binary_name": "xserver-xephyr",
            "binary_version": "2:1.20.13-1ubuntu1~20.04.20+esm1"
          },
          {
            "binary_name": "xserver-xorg-core",
            "binary_version": "2:1.20.13-1ubuntu1~20.04.20+esm1"
          },
          {
            "binary_name": "xserver-xorg-legacy",
            "binary_version": "2:1.20.13-1ubuntu1~20.04.20+esm1"
          },
          {
            "binary_name": "xvfb",
            "binary_version": "2:1.20.13-1ubuntu1~20.04.20+esm1"
          },
          {
            "binary_name": "xwayland",
            "binary_version": "2:1.20.13-1ubuntu1~20.04.20+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "xorg-server",
        "purl": "pkg:deb/ubuntu/xorg-server@2:1.20.13-1ubuntu1~20.04.20+esm1?arch=source\u0026distro=esm-infra/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:1.20.13-1ubuntu1~20.04.20+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:1.20.5+git20191008-0ubuntu1",
        "2:1.20.6-1ubuntu1",
        "2:1.20.7-2ubuntu1",
        "2:1.20.7-2ubuntu2",
        "2:1.20.8-2ubuntu2",
        "2:1.20.8-2ubuntu2.1",
        "2:1.20.8-2ubuntu2.2",
        "2:1.20.8-2ubuntu2.3",
        "2:1.20.8-2ubuntu2.4",
        "2:1.20.8-2ubuntu2.6",
        "2:1.20.9-2ubuntu1.1~20.04.1",
        "2:1.20.9-2ubuntu1.2~20.04.1",
        "2:1.20.9-2ubuntu1.2~20.04.2",
        "2:1.20.11-1ubuntu1~20.04.2",
        "2:1.20.13-1ubuntu1~20.04.2",
        "2:1.20.13-1ubuntu1~20.04.3",
        "2:1.20.13-1ubuntu1~20.04.4",
        "2:1.20.13-1ubuntu1~20.04.5",
        "2:1.20.13-1ubuntu1~20.04.6",
        "2:1.20.13-1ubuntu1~20.04.8",
        "2:1.20.13-1ubuntu1~20.04.9",
        "2:1.20.13-1ubuntu1~20.04.12",
        "2:1.20.13-1ubuntu1~20.04.14",
        "2:1.20.13-1ubuntu1~20.04.15",
        "2:1.20.13-1ubuntu1~20.04.16",
        "2:1.20.13-1ubuntu1~20.04.17",
        "2:1.20.13-1ubuntu1~20.04.18",
        "2:1.20.13-1ubuntu1~20.04.19",
        "2:1.20.13-1ubuntu1~20.04.20"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-7573-1 fixed several vulnerabilities in X.Org. This update provides\nthe corresponding update for Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and  Ubuntu\n20.04 LTS.\n\nOriginal advisory details:\n\n Nils Emmerich discovered that the X.Org X Server incorrectly handled\n certain memory operations. An attacker could use these issues to cause the\n X Server to crash, leading to a denial of service, obtain sensitive\n information, or possibly execute arbitrary code.\n",
  "id": "USN-7573-2",
  "modified": "2026-06-25T10:46:50Z",
  "published": "2025-06-18T09:54:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7573-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-49175"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-49176"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-49178"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-49179"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-49180"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "xorg-server, xorg-server-hwe-16.04, xorg-server-hwe-18.04 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2025-49175",
    "UBUNTU-CVE-2025-49176",
    "UBUNTU-CVE-2025-49178",
    "UBUNTU-CVE-2025-49179",
    "UBUNTU-CVE-2025-49180"
  ]
}



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Tags
Taxonomy of the tags.





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

Author Source Type Date Other

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.