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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2017-13721

In X.Org Server (aka xserver and xorg-server) before 1.19.4, an attacker authenticated to an X server with the X shared memory extension enabled can cause aborts of the X server or replace shared memory segments of other X clients in the same session.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2017-13721
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 10:03 UTC · Revision 1

Source evidence

CVE-2017-13721

core-osv · Original source

Published 10 Oct 2017, 01:30 UTC

In X.Org Server (aka xserver and xorg-server) before 1.19.4, an attacker authenticated to an X server with the X shared memory extension enabled can cause aborts of the X server or replace shared memory segments of other X clients in the same session.

osv:CVE-2017-13721
Complete source record
{
  "id": "f904c422b152d72d4e661093e9a31ee12a1e5b0425574b6cfeeba95c6f57b569",
  "url": "https://osv.dev/vulnerability/CVE-2017-13721",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-13721",
    "summary": "In X.Org Server (aka xserver and xorg-server) before 1.19.4, an attacker authenticated to an X server with the X shared memory extension enabled can cause aborts of the X server or replace shared memory segments of other X clients in the same session.",
    "evidence": "osv:CVE-2017-13721",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2017-13721",
      "aliases": [
        "CVE-2017-13721"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://gitlab.freedesktop.org/xorg/xserver",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "d88937ba8354d6a4e0be2a398037443146701ddc"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.19.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "xorg-server-1.19.3",
            "xorg-server-1.19.2",
            "xorg-server-1.19.1",
            "xorg-server-1.19.0",
            "xorg-server-1.18.99.902",
            "xorg-server-1.18.99.901",
            "xorg-server-1.18.99.2",
            "xorg-server-1.18.0",
            "xorg-server-1.17.99.902",
            "xorg-server-1.17.99.901",
            "xorg-server-1.17.0",
            "xorg-server-1.16.99.902",
            "xorg-server-1.16.99.901",
            "xorg-server-1.16.0",
            "xorg-server-1.15.99.904",
            "xorg-server-1.15.99.903",
            "xorg-server-1.15.99.902",
            "xorg-server-1.15.99.901",
            "xorg-server-1.15.0",
            "xorg-server-1.14.99.905",
            "xorg-server-1.14.99.904",
            "xorg-server-1.14.99.903",
            "xorg-server-1.14.99.902",
            "xorg-server-1.14.99.901",
            "xorg-server-1.14.99.3",
            "xorg-server-1.14.99.2",
            "xorg-server-1.14.99.1",
            "xorg-server-1.14.0",
            "xorg-server-1.13.99.902",
            "xorg-server-1.13.99.901",
            "xorg-server-1.13.0",
            "xorg-server-1.12.99.905",
            "xorg-server-1.12.99.904",
            "xorg-server-1.12.99.903",
            "xorg-server-1.12.99.902",
            "xorg-server-1.12.99.901",
            "xorg-server-1.12.0",
            "xorg-server-1.11.99.903",
            "xorg-server-1.11.99.902",
            "xorg-server-1.11.99.901",
            "xorg-server-1.11.99.1",
            "xorg-server-1.11.0",
            "xorg-server-1.10.99.902",
            "xorg-server-1.10.99.901",
            "xorg-server-1.10.0",
            "xorg-server-1.9.99.903",
            "xorg-server-1.9.99.902",
            "xorg-server-1.9.99.901",
            "xorg-server-1.9.0",
            "xorg-server-1.8.99.906",
            "xorg-server-1.8.99.905",
            "xorg-server-1.8.99.904",
            "xorg-server-1.8.99.903",
            "xorg-server-1.8.99.902",
            "xorg-server-1.8.99.901",
            "xorg-server-1.8.0",
            "xorg-server-1.7.99.902",
            "xorg-server-1.7.99.901",
            "xorg-server-1.7.99.2",
            "xorg-server-1.7.99.1",
            "xorg-server-1.6.99.901",
            "xorg-server-1.6.99.900",
            "xorg-server-1.5.99.1",
            "xorg-server-1.1.99.3",
            "xorg-server-1_1_99_2",
            "xorg-server-1_0_99_901",
            "XORG-7_0_99_901",
            "xorg-server-1_1_99_1",
            "xorg-server-1_0_99_2",
            "xorg-server-1_0_99_1",
            "XORG-7_0",
            "pre-xgldrop-merge",
            "XORG-6_99_99_904",
            "MODULAR_COPY",
            "XORG-6_99_99_903",
            "XORG-6_8_99_903",
            "DRM-2_0_0",
            "XORG-6_99_99_902",
            "XORG-6_8_99_902",
            "DRM-1_0_5",
            "XORG-6_99_99_901",
            "XORG-6_8_99_901",
            "DRM-20051017",
            "kdrive-initial-import",
            "xorg-server-0_99_1",
            "XORG-6_99_99_900",
            "XORG-6_8_99_900",
            "XORG-6_8_99_16",
            "XORG-6_8_99_15",
            "XORG-6_8_99_14",
            "XORG-6_8_99_13",
            "XORG-6_8_99_12",
            "DRM-20050615",
            "sco_port_update-base",
            "XORG-6_8_99_11",
            "XORG-6_8_99_10",
            "XORG-6_8_99_9",
            "XORG-6_8_99_8",
            "XORG-6_8_99_7",
            "XORG-6_8_99_6",
            "XORG-6_8_99_5",
            "XORG-6_8_99_4",
            "XORG-6_8_99_3",
            "XORG-6_8_99_2",
            "XORG-6_8_99_1",
            "lg3d-base",
            "XORG-6_8_0",
            "XORG-6_7_99_904",
            "XORG-6_7_99_903",
            "XORG-6_7_99_902",
            "XORG-6_7_99_901",
            "XORG-6_7_99_2",
            "XORG-6_7_99_1",
            "DRM-20040721",
            "DRI-trunk-20040721",
            "DRI-trunk-20040613",
            "DRI-XFree86-4_3_99_12-merge",
            "DRM-20040613",
            "XACE-SELINUX-MERGE",
            "xf86-4_4_99_1",
            "xf86-4_4_0",
            "xf86-4_3_99_903",
            "xf86-4_3_99_903_special",
            "add-Xi",
            "xf86-012804-2330",
            "xf86-4_3_99_902",
            "xf86-4_3_99_901",
            "dri-0-1-branchpoint",
            "xf86-4_3_99_16",
            "xf86-4_3_0_1",
            "PRE_xf86-4_3_0_1",
            "XORG-MAIN",
            "xfixes_2_branchpoint",
            "keithp",
            "xf-4_3_99_6",
            "xf-4_3_99_5",
            "xf-4_3_99_4",
            "xf-4_3_99_3",
            "xf-4_3_99_2",
            "xf-4_3_99_1",
            "xf-4_3_0_1",
            "xf-4_3_0",
            "xf-4_2_99_902",
            "xf-4_2_99_901",
            "xf-4_2_99_4",
            "xf-4_2_99_3",
            "ah-20021030-postdri",
            "xf-4_2_99_2",
            "ah-20021030",
            "dhd-20020916",
            "xf-4_2_99_1",
            "dri-20020222-merge",
            "before-mesa-4_0-import",
            "dri-20020129-merge",
            "xf-4_2_1_1",
            "xf-4_2_1",
            "xf-4_2_0_1",
            "xf-4_2_0-bindist-1",
            "xf-4_2_0-bindist",
            "xf-4_2_0",
            "xf-4_2-bp",
            "xf-4_1_99_7",
            "xf-4_1_99_6",
            "xf-4_1_99_5",
            "xf-4_1_99_4",
            "Domain-sync4",
            "Domain-sync3",
            "xf-4_1_99_3",
            "xf-4_1_99_2",
            "Domain-sync2",
            "Domain-sync1",
            "Domain-base",
            "xf-4_1_99_1",
            "dhd-20010817",
            "xf-4_0_99_900",
            "xf-4_0_99_3",
            "xf-4_0_99_2",
            "dhd-20010328",
            "xf-4_0_99_1",
            "xf-4_0_2-bindist",
            "xf-4_0_2",
            "xf-4_0_1Zc",
            "xf-4_0_1Zb",
            "pre-R651-import",
            "xf-4_0_1Za",
            "xf-4_0_1Z",
            "xf-4_0_1h",
            "xf-4_0_1g",
            "xf-4_0_1f",
            "xf-4_0_1e",
            "xf-4_0_1d",
            "xf-4_0_1c",
            "xf-4_0_1b",
            "xf-4_0g",
            "xf-4_0f",
            "xf-4_0e",
            "xf-4_0d",
            "xf-4_0c",
            "xf-4_0_1a",
            "xf-4_0_1-bindist",
            "xf-4_0_1",
            "xf-4_0Z",
            "xf-4_0b",
            "xf-4_0a",
            "xf-4_0-bindist",
            "xf-4_0",
            "xf-3_9_18b",
            "xf-3_9_18a",
            "xf-3_9_18Za",
            "xf-3_9_18Z",
            "xf-3_9_18",
            "xf-3_9_17f",
            "xf-3_9_17e",
            "xf-3_9_17d",
            "xf-3_9_17c",
            "xf-3_9_17b",
            "xf-3_9_17a",
            "xf-3_9_17Z",
            "xf-3_9_17",
            "xf-3_9_16Za",
            "xf-3_9_16f",
            "xf-3_9_16e",
            "xf-3_9_16d",
            "xf-3_9_16Z"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-13721.json"
          }
        }
      ],
      "modified": "2026-10-20T10:49:50.448331458Z",
      "provider": "osv",
      "references": [
        "https://cgit.freedesktop.org/xorg/xserver/commit/?id=b95f25af141d33a65f6f821ea9c003f66a01e1f1",
        "https://lists.x.org/archives/xorg-announce/2017-October/002808.html",
        "https://security.gentoo.org/glsa/201710-30"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  },
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2017-13721",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 380851,
  "published_at": "2017-10-10T01:30:21.377+00:00"
}