{
  "schema_version": "1.7.0",
  "id": "MGASA-2021-0196",
  "published": "2021-04-23T22:53:14Z",
  "modified": "2021-04-23T21:53:13Z",
  "summary": "Updated krb5-appl packages fix security vulnerabilities",
  "details": "An issue was discovered in rcp in MIT krb5-appl through 1.0.3. Due to the rcp\nimplementation being derived from 1983 rcp, the server chooses which\nfiles/directories are sent to the client. However, the rcp client only\nperforms cursory validation of the object name returned (only directory\ntraversal attacks are prevented). A malicious rcp server (or\nMan-in-The-Middle attacker) can overwrite arbitrary files in the rcp client\ntarget directory. If recursive operation (-r) is performed, the server can\nmanipulate subdirectories as well (for example, to overwrite the\n.ssh/authorized_keys file). This issue is similar to CVE-2019-6111 and\nCVE-2019-7283 (CVE-2019-25017).\n\nIn the rcp client in MIT krb5-appl through 1.0.3 malicious servers could\nbypass intended access restrictions via the filename of . or an empty\nfilename, similar to CVE-2018-20685 and CVE-2019-7282. The impact is modifying\nthe permissions of the target directory on the client side (CVE-2019-25018).\n",
  "upstream": [
    "CVE-2019-25017",
    "CVE-2019-25018"
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://advisories.mageia.org/MGASA-2021-0196.html"
    },
    {
      "type": "REPORT",
      "url": "https://bugs.mageia.org/show_bug.cgi?id=28460"
    },
    {
      "type": "WEB",
      "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-February/008353.html"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "Mageia:7",
        "name": "krb5-appl",
        "purl": "pkg:rpm/mageia/krb5-appl?arch=source&distro=mageia-7"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.3-10.2.mga7"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "section": "core"
      }
    },
    {
      "package": {
        "ecosystem": "Mageia:8",
        "name": "krb5-appl",
        "purl": "pkg:rpm/mageia/krb5-appl?arch=source&distro=mageia-8"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.3-13.1.mga8"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "section": "core"
      }
    }
  ],
  "credits": [
    {
      "name": "Mageia",
      "type": "COORDINATOR",
      "contact": [
        "https://wiki.mageia.org/en/Packages_Security_Team"
      ]
    }
  ]
}