USN-6055-2.json

{
  "id": "USN-6055-2",
  "summary": "ruby2.3, ruby2.5, ruby2.7 regression",
  "details": "USN-6055-1 fixed a vulnerability in Ruby. Unfortunately it introduced a regression.\nThis update reverts the patches applied to CVE-2023-28755 in order to fix the regression\npending further investigation.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\n It was discovered that Ruby incorrectly handled certain regular expressions.\n An attacker could possibly use this issue to cause a denial of service.\n (CVE-2023-28755)\n",
  "aliases": [],
  "related": [
    "CVE-2023-28755"
  ],
  "published": "2023-05-05T12:46:21.433408Z",
  "modified": "2023-05-05T12:46:21.433408Z",
  "affected": [
    {
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "ruby2.7"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.7.0-5ubuntu1.10"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "ruby2.7": "2.7.0-5ubuntu1.10",
            "ruby2.7-doc": "2.7.0-5ubuntu1.10",
            "ruby2.7-dev": "2.7.0-5ubuntu1.10",
            "libruby2.7": "2.7.0-5ubuntu1.10"
          }
        ],
        "availability": "No subscription needed"
      }
    },
    {
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "ruby2.5"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.5.1-1ubuntu1.15"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "ruby2.5-dev": "2.5.1-1ubuntu1.15",
            "ruby2.5": "2.5.1-1ubuntu1.15",
            "ruby2.5-doc": "2.5.1-1ubuntu1.15",
            "libruby2.5": "2.5.1-1ubuntu1.15"
          }
        ],
        "availability": "No subscription needed"
      }
    },
    {
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "ruby2.3"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.3.1-2~ubuntu16.04.16+esm6"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "libruby2.3": "2.3.1-2~ubuntu16.04.16+esm6",
            "ruby2.3-tcltk": "2.3.1-2~ubuntu16.04.16+esm6",
            "ruby2.3": "2.3.1-2~ubuntu16.04.16+esm6",
            "ruby2.3-dev": "2.3.1-2~ubuntu16.04.16+esm6",
            "ruby2.3-doc": "2.3.1-2~ubuntu16.04.16+esm6"
          }
        ],
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6055-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-28755"
    },
    {
      "type": "REPORT",
      "url": "https://launchpad.net/bugs/2018547"
    }
  ]
}