rhsa-2022_1964
Vulnerability from csaf_redhat
Published
2022-05-10 14:09
Modified
2024-11-22 18:33
Summary
Red Hat Security Advisory: fetchmail security update

Notes

Topic
An update for fetchmail is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
Fetchmail is a remote mail retrieval and forwarding utility intended for use over on-demand TCP/IP links, like SLIP or PPP connections. Fetchmail supports every remote-mail protocol currently in use on the Internet (POP2, POP3, RPOP, APOP, KPOP, all IMAPs, ESMTP ETRN, IPv6, and IPSEC) for retrieval. Then Fetchmail forwards the mail through SMTP so the user can read it through their favorite mail client. Security Fix(es): * fetchmail: DoS or information disclosure when logging long messages (CVE-2021-36386) * fetchmail: STARTTLS session encryption bypassing (CVE-2021-39272) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.6 Release Notes linked from the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


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      "cwe": {
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        "name": "Improper Initialization"
      },
      "discovery_date": "2021-07-28T00:00:00+00:00",
      "ids": [
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          "text": "1987766"
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      "notes": [
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          "category": "description",
          "text": "A flaw was found in fetchmail. The flaw lies in how fetchmail when running in verbose mode using the -v flag tries to log long messages that are created from long headers. An attacker could potentially use this flaw to cause a Denial of Service attack or crash. The highest threat from this vulnerability is to data availability. This flaw was earlier identified by CVE-2008-2711 and fixed, however it recently got reintroduced due to a code refactoring issue. The current bug fix applies a different approach than the earlier one.",
          "title": "Vulnerability description"
        },
        {
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          "text": "fetchmail: DoS or information disclosure when logging long messages",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
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          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-36386",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-36386"
        },
        {
          "category": "external",
          "summary": "https://www.fetchmail.info/fetchmail-SA-2021-01.txt",
          "url": "https://www.fetchmail.info/fetchmail-SA-2021-01.txt"
        }
      ],
      "release_date": "2021-07-28T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2022-05-10T14:09:37+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
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          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2022:1964"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "fetchmail: DoS or information disclosure when logging long messages"
    },
    {
      "cve": "CVE-2021-39272",
      "cwe": {
        "id": "CWE-319",
        "name": "Cleartext Transmission of Sensitive Information"
      },
      "discovery_date": "2021-08-27T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1999190"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Fetchmail before 6.4.22 fails to enforce STARTTLS session encryption in some circumstances, such as a certain situation with IMAP and PREAUTH.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "fetchmail: STARTTLS session encryption bypassing",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
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        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2021-39272"
        },
        {
          "category": "external",
          "summary": "RHBZ#1999190",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1999190"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2021-39272",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-39272"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-39272",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39272"
        }
      ],
      "release_date": "2021-08-10T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2022-05-10T14:09:37+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
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          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2022:1964"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
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        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "fetchmail: STARTTLS session encryption bypassing"
    }
  ]
}


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