CVE-2022-4283 (GCVE-0-2022-4283)

Vulnerability from cvelistv5 – Published: 2022-12-14 00:00 – Updated: 2025-04-14 18:13
VLAI
Summary
A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName requests.. 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.
Severity
7.8 (High)
CVSS:3.1/AV:L/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 2025-04-14 15:16 UTC
CWE
  • use-after-free
  • CWE-416 - Use After Free
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1070 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
n/a xorg-x11-server Affected: xorg-x11-server-1.20.4
Show details on NVD website
To clipboard 

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              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "product": "xorg-x11-server",
              "vendor": "n/a",
              "versions": [
                {
                  "status": "affected",
                  "version": "xorg-x11-server-1.20.4"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName requests.. 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."
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "description": "use-after-free",
                  "lang": "en",
                  "type": "text"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2023-05-30T05:08:33.737Z",
            "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
            "shortName": "redhat"
          },
          "references": [
            {
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2151761"
            },
            {
              "url": "https://access.redhat.com/security/cve/CVE-2022-4283"
            },
            {
              "name": "FEDORA-2022-c3a65f7c65",
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DXDF2O5PPLE3SVAJJYUOSAD5QZ4TWQ2G/"
            },
            {
              "name": "FEDORA-2022-721a78b7e5",
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5NELB7YDWRABYYBG4UPTHRBDTKJRV5M2/"
            },
            {
              "name": "DSA-5304",
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://www.debian.org/security/2022/dsa-5304"
            },
            {
              "name": "FEDORA-2022-dd3eb7e0a8",
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z67QC4C3I2FI2WRFIUPEHKC36J362MLA/"
            },
            {
              "url": "https://security.gentoo.org/glsa/202305-30"
            }
          ]
        }
      },
      "cveMetadata": {
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "cveId": "CVE-2022-4283",
        "datePublished": "2022-12-14T00:00:00.000Z",
        "dateReserved": "2022-12-05T00:00:00.000Z",
        "dateUpdated": "2025-04-14T18:13:03.382Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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