Security advisory

{
  "id": "bbbdcbd3f0a19156def7e9b2df3c6661aa223fa6329fe1b7ff92f4c1485aca3b",
  "url": "https://osv.dev/vulnerability/CVE-2018-19518",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-19518",
    "summary": "University of Washington IMAP Toolkit 2007f on UNIX, as used in imap_open() in PHP and other products, launches an rsh command (by means of the imap_rimap function in c-client/imap4r1.c and the tcp_aopen function in osdep/unix/tcp_unix.c) without preventing argument injection, which might allow remote attackers to execute arbitrary OS commands if the IMAP server name is untrusted input (e.g., entered by a user of a web application) and if rsh has been replaced by a program with different argument semantics. For example, if rsh is a link to ssh (as seen on Debian and Ubuntu systems), then the attack can use an IMAP server name containing a \"-oProxyCommand\" argument.",
    "evidence": "osv:CVE-2018-19518",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-19518",
      "aliases": [
        "CVE-2018-19518"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/php/php-src",
              "type": "GIT",
              "events": [
                {
                  "introduced": "fc1df8e7a6886e29a6ed5bef3f674ac61164e847"
                },
                {
                  "last_affected": "b0822792c8d4c8d535ea1beb8ea63025496668e7"
                },
                {
                  "introduced": "60fffd296abce5fc071f3c173c25a2696cf683c6"
                },
                {
                  "last_affected": "cff4562e6dfe5db877504f310bf00e00198fbb73"
                },
                {
                  "introduced": "0221e9f827632942225586687a33cfd554860d5e"
                },
                {
                  "last_affected": "5eadf3a999d07c85a01b0efd648e3419bc26d181"
                },
                {
                  "introduced": "8148cbb78841c8ec0759c0836e7f35dec799d300"
                },
                {
                  "last_affected": "6c5fc072c8279ba76f5981ba8a0ff4dd7585bf29"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "5.6.0"
                      },
                      {
                        "last_affected": "5.6.38"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.0.0"
                      },
                      {
                        "last_affected": "7.0.32"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.1.0"
                      },
                      {
                        "last_affected": "7.1.24"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.2.0"
                      },
                      {
                        "last_affected": "7.2.12"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-19518.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/uw-imap/imap",
              "type": "GIT",
              "events": [
                {
                  "introduced": "22f316e36dc00e445408f7a47750b7fa9c3ce369"
                },
                {
                  "last_affected": "22f316e36dc00e445408f7a47750b7fa9c3ce369"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:uw-imap_project:uw-imap:2007f:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2007f"
                      },
                      {
                        "last_affected": "2007f"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2007f",
            "imap-2007f_upstream"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-19518.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:24.933134677Z",
      "provider": "osv",
      "references": [
        "https://git.php.net/?p=php-src.git%3Ba=commit%3Bh=e5bfea64c81ae34816479bb05d17cdffe45adddb",
        "https://bugs.debian.org/913775",
        "https://bugs.debian.org/913835",
        "https://bugs.debian.org/913836",
        "https://bugs.php.net/bug.php?id=77160",
        "https://lists.debian.org/debian-lts-announce/2018/12/msg00006.html",
        "https://lists.debian.org/debian-lts-announce/2019/03/msg00001.html",
        "https://lists.debian.org/debian-lts-announce/2021/12/msg00031.html",
        "https://security.gentoo.org/glsa/202003-57",
        "https://security.netapp.com/advisory/ntap-20181221-0004/",
        "https://usn.ubuntu.com/4160-1/",
        "https://www.debian.org/security/2018/dsa-4353",
        "https://antichat.com/threads/463395/#post-4254681",
        "https://bugs.php.net/bug.php?id=76428",
        "https://bugs.php.net/bug.php?id=77153",
        "https://github.com/Bo0oM/PHP_imap_open_exploit/blob/master/exploit.php",
        "https://www.exploit-db.com/exploits/45914/",
        "https://www.openwall.com/lists/oss-security/2018/11/22/3"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*"
            ],
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "16.04"
                  },
                  {
                    "last_affected": "16.04"
                  },
                  {
                    "introduced": "18.04"
                  },
                  {
                    "last_affected": "18.04"
                  },
                  {
                    "introduced": "19.04"
                  },
                  {
                    "last_affected": "19.04"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "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-2018-19518",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 431256,
  "published_at": "2018-11-25T10:29:00.25+00:00"
}