Vulnerability-Lookup

UBUNTU-CVE-2022-46340 (CVE-2022-46340)

Vulnerability from osv_ubuntu – Published: 2022-12-14 00:00 – Updated: 2026-04-22 07:41 – Source website

Details

A vulnerability was found in X.Org. This security flaw occurs becuase the swap handler for the XTestFakeInput request of the XTest extension may corrupt the stack if GenericEvents with lengths larger than 32 bytes are sent through a the XTestFakeInput request. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions. This issue does not affect systems where client and server use the same byte order.

Severity

8.8 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

8.8 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2022-46340	REPORT
	https://ubuntu.com/security/notices/USN-5778-1	ADVISORY
	https://ubuntu.com/security/notices/USN-5778-2	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2022-46340	REPORT

JSON

To clipboard

{
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        "binaries": [
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          },
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        "2:22.1.1-1ubuntu0.2",
        "2:22.1.1-1ubuntu0.3"
      ]
    }
  ],
  "aliases": [],
  "details": "A vulnerability was found in X.Org. This security flaw occurs becuase the swap handler for the XTestFakeInput request of the XTest extension may corrupt the stack if GenericEvents with lengths larger than 32 bytes are sent through a the XTestFakeInput request. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions. This issue does not affect systems where client and server use the same byte order.",
  "id": "UBUNTU-CVE-2022-46340",
  "modified": "2026-04-22T07:41:45Z",
  "published": "2022-12-14T00:00:00Z",
  "references": [
    {
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      "url": "https://ubuntu.com/security/CVE-2022-46340"
    },
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      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5778-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5778-2"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2022-46340"
    }
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  ],
  "schema_version": "1.7.0",
  "severity": [
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      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2022-46340"
  ]
}

CVE-2022-46340 (GCVE-0-2022-46340)

Vulnerability from cvelistv5 – Published: 2022-12-14 00:00 – Updated: 2025-04-22 15:54

Summary

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-22 15:54 UTC

CWE

stack overflow
CWE-787 - Out-of-bounds Write

Assigner

redhat redhat root

References

8 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2022-46340
https://bugzilla.redhat.com/show_bug.cgi?id=2151755
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://www.debian.org/security/2022/dsa-5304	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://security.gentoo.org/glsa/202305-30

Impacted products

1 product

Vendor	Product	Version
n/a	xorg-x11-server	Affected: xorg-x11-server-1.20.4

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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USN-5778-1 (UBUNTU-CVE-2022-4283)

Vulnerability from osv_ubuntu – Published: 2022-12-14 12:33 – Updated: 2026-04-22 07:37 – Source website

Summary

xorg-server, xorg-server-hwe-18.04, xwayland vulnerabilities

Details

Jan-Niklas Sohn discovered that X.Org X Server extensions contained multiple security issues. An attacker could possibly use these issues to cause the X Server to crash, execute arbitrary code, or escalate privileges.

References

URL

Type

	https://ubuntu.com/security/notices/USN-5778-1	ADVISORY
	https://ubuntu.com/security/CVE-2022-4283	REPORT
	https://ubuntu.com/security/CVE-2022-46340	REPORT
	https://ubuntu.com/security/CVE-2022-46341	REPORT
	https://ubuntu.com/security/CVE-2022-46342	REPORT
	https://ubuntu.com/security/CVE-2022-46343	REPORT
	https://ubuntu.com/security/CVE-2022-46344	REPORT

JSON

To clipboard

{
  "affected": [
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          "cves": [
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              "id": "CVE-2022-4283",
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          }
        ]
      },
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        "name": "xwayland",
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      },
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
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        "2:21.1.3-1",
        "2:21.1.3-1ubuntu1",
        "2:21.1.4-1",
        "2:22.1.0-1",
        "2:22.1.1-1",
        "2:22.1.1-1ubuntu0.1",
        "2:22.1.1-1ubuntu0.2",
        "2:22.1.1-1ubuntu0.3"
      ]
    }
  ],
  "aliases": [],
  "details": "Jan-Niklas Sohn discovered that X.Org X Server extensions contained\nmultiple security issues. An attacker could possibly use these issues to\ncause the X Server to crash, execute arbitrary code, or escalate\nprivileges.\n",
  "id": "USN-5778-1",
  "modified": "2026-04-22T07:37:03Z",
  "published": "2022-12-14T12:33:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5778-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-4283"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-46340"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-46341"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-46342"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-46343"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-46344"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "xorg-server, xorg-server-hwe-18.04, xwayland vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2022-4283",
    "UBUNTU-CVE-2022-46340",
    "UBUNTU-CVE-2022-46341",
    "UBUNTU-CVE-2022-46342",
    "UBUNTU-CVE-2022-46343",
    "UBUNTU-CVE-2022-46344"
  ]
}

USN-5778-2 (UBUNTU-CVE-2022-4283)

Vulnerability from osv_ubuntu – Published: 2023-02-16 14:09 – Updated: 2026-06-29 10:52 – Source website

Summary

xorg-server, xorg-server-hwe-16.04 vulnerabilities

Details

USN-5778-1 fixed several vulnerabilities in X.Org. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

References

URL

Type

	https://ubuntu.com/security/notices/USN-5778-2	ADVISORY
	https://ubuntu.com/security/CVE-2022-4283	REPORT
	https://ubuntu.com/security/CVE-2022-46340	REPORT
	https://ubuntu.com/security/CVE-2022-46341	REPORT
	https://ubuntu.com/security/CVE-2022-46342	REPORT
	https://ubuntu.com/security/CVE-2022-46343	REPORT
	https://ubuntu.com/security/CVE-2022-46344	REPORT
	https://ubuntu.com/security/CVE-2023-0494	REPORT

JSON

To clipboard

{
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                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
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              ]
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              "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": "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:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "xdmx",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm7"
          },
          {
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            "binary_version": "2:1.15.1-0ubuntu2.11+esm7"
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            "binary_name": "xnest",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm7"
          },
          {
            "binary_name": "xorg-server-source",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm7"
          },
          {
            "binary_name": "xserver-common",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm7"
          },
          {
            "binary_name": "xserver-xephyr",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm7"
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          {
            "binary_name": "xserver-xorg-core",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm7"
          },
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            "binary_name": "xserver-xorg-xmir",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm7"
          },
          {
            "binary_name": "xvfb",
            "binary_version": "2:1.15.1-0ubuntu2.11+esm7"
          }
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      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "xorg-server",
        "purl": "pkg:deb/ubuntu/xorg-server@2:1.15.1-0ubuntu2.11+esm7?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
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          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:1.15.1-0ubuntu2.11+esm7"
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          "type": "ECOSYSTEM"
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      ],
      "versions": [
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        "2:1.15.1-0ubuntu2.5",
        "2:1.15.1-0ubuntu2.6",
        "2:1.15.1-0ubuntu2.7",
        "2:1.15.1-0ubuntu2.9",
        "2:1.15.1-0ubuntu2.10",
        "2:1.15.1-0ubuntu2.11",
        "2:1.15.1-0ubuntu2.11+esm2",
        "2:1.15.1-0ubuntu2.11+esm3",
        "2:1.15.1-0ubuntu2.11+esm4",
        "2:1.15.1-0ubuntu2.11+esm5",
        "2:1.15.1-0ubuntu2.11+esm6"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2022-4283",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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                {
                  "score": "medium",
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                }
              ]
            },
            {
              "id": "CVE-2022-46340",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
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                }
              ]
            },
            {
              "id": "CVE-2022-46341",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-46342",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-46343",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-46344",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-0494",
              "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": "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:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "xdmx",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm5"
          },
          {
            "binary_name": "xdmx-tools",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm5"
          },
          {
            "binary_name": "xmir",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm5"
          },
          {
            "binary_name": "xnest",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm5"
          },
          {
            "binary_name": "xorg-server-source",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm5"
          },
          {
            "binary_name": "xserver-common",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm5"
          },
          {
            "binary_name": "xserver-xephyr",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm5"
          },
          {
            "binary_name": "xserver-xorg-core",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm5"
          },
          {
            "binary_name": "xserver-xorg-legacy",
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            "binary_name": "xserver-xorg-xmir",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm5"
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            "binary_name": "xvfb",
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          },
          {
            "binary_name": "xwayland",
            "binary_version": "2:1.18.4-0ubuntu0.12+esm5"
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        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "xorg-server",
        "purl": "pkg:deb/ubuntu/xorg-server@2:1.18.4-0ubuntu0.12+esm5?arch=source\u0026distro=esm-infra/xenial"
      },
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        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:1.18.4-0ubuntu0.12+esm5"
            }
          ],
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        }
      ],
      "versions": [
        "2:1.17.2-1ubuntu9",
        "2:1.17.2-1ubuntu10",
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        "2:1.18.4-0ubuntu0.1",
        "2:1.18.4-0ubuntu0.2",
        "2:1.18.4-0ubuntu0.3",
        "2:1.18.4-0ubuntu0.4",
        "2:1.18.4-0ubuntu0.6",
        "2:1.18.4-0ubuntu0.7",
        "2:1.18.4-0ubuntu0.8",
        "2:1.18.4-0ubuntu0.9",
        "2:1.18.4-0ubuntu0.10",
        "2:1.18.4-0ubuntu0.11",
        "2:1.18.4-0ubuntu0.12",
        "2:1.18.4-0ubuntu0.12+esm1",
        "2:1.18.4-0ubuntu0.12+esm2",
        "2:1.18.4-0ubuntu0.12+esm4"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2022-4283",
              "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": "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"
                }
              ]
            },
            {
              "id": "CVE-2022-46340",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-46341",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-46342",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-46343",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-46344",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-0494",
              "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": "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:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "xmir-hwe-16.04",
            "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm4"
          },
          {
            "binary_name": "xorg-server-source-hwe-16.04",
            "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm4"
          },
          {
            "binary_name": "xserver-xephyr-hwe-16.04",
            "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm4"
          },
          {
            "binary_name": "xserver-xorg-core-hwe-16.04",
            "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm4"
          },
          {
            "binary_name": "xserver-xorg-dev-hwe-16.04",
            "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm4"
          },
          {
            "binary_name": "xserver-xorg-legacy-hwe-16.04",
            "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm4"
          },
          {
            "binary_name": "xwayland-hwe-16.04",
            "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "xorg-server-hwe-16.04",
        "purl": "pkg:deb/ubuntu/xorg-server-hwe-16.04@2:1.19.6-1ubuntu4.1~16.04.6+esm4?arch=source\u0026distro=esm-infra/xenial"
      },
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            {
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            },
            {
              "fixed": "2:1.19.6-1ubuntu4.1~16.04.6+esm4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:1.18.4-1ubuntu6.1~16.04.1",
        "2:1.18.4-1ubuntu6.1~16.04.2",
        "2:1.19.3-1ubuntu1~16.04.2",
        "2:1.19.3-1ubuntu1~16.04.3",
        "2:1.19.3-1ubuntu1~16.04.4",
        "2:1.19.5-0ubuntu2~16.04.1",
        "2:1.19.6-1ubuntu4~16.04.1",
        "2:1.19.6-1ubuntu4.1~16.04.1",
        "2:1.19.6-1ubuntu4.1~16.04.2",
        "2:1.19.6-1ubuntu4.1~16.04.3",
        "2:1.19.6-1ubuntu4.1~16.04.4",
        "2:1.19.6-1ubuntu4.1~16.04.5",
        "2:1.19.6-1ubuntu4.1~16.04.6",
        "2:1.19.6-1ubuntu4.1~16.04.6+esm1",
        "2:1.19.6-1ubuntu4.1~16.04.6+esm3"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-5778-1 fixed several vulnerabilities in X.Org. This update provides\nthe corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.\n\nOriginal advisory details:\n\n Jan-Niklas Sohn discovered that X.Org X Server extensions contained\n multiple security issues. An attacker could possibly use these issues to\n cause the X Server to crash, execute arbitrary code, or escalate\n privileges.\n",
  "id": "USN-5778-2",
  "modified": "2026-06-29T10:52:58Z",
  "published": "2023-02-16T14:09:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5778-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-4283"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-46340"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-46341"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-46342"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-46343"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-46344"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-0494"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "xorg-server, xorg-server-hwe-16.04 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2022-4283",
    "UBUNTU-CVE-2022-46340",
    "UBUNTU-CVE-2022-46341",
    "UBUNTU-CVE-2022-46342",
    "UBUNTU-CVE-2022-46343",
    "UBUNTU-CVE-2022-46344",
    "UBUNTU-CVE-2023-0494"
  ]
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

UBUNTU-CVE-2022-46340 (CVE-2022-46340)

CVE-2022-46340 (GCVE-0-2022-46340)

USN-5778-1 (UBUNTU-CVE-2022-4283)

USN-5778-2 (UBUNTU-CVE-2022-4283)

Tags

Sightings

Nomenclature

Related by attack behaviour