Vulnerability-Lookup

FKIE_CVE-2020-14954

Vulnerability from fkie_nvd - Published: 2020-06-21 17:15 - Updated: 2026-06-17 02:55

Severity

5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Summary

Mutt before 1.14.4 and NeoMutt before 2020-06-19 have a STARTTLS buffering issue that affects IMAP, SMTP, and POP3. When a server sends a "begin TLS" response, the client reads additional data (e.g., from a man-in-the-middle attacker) and evaluates it in a TLS context, aka "response injection."

References

URL	Tags
cve@mitre.org	http://lists.mutt.org/pipermail/mutt-announce/Week-of-Mon-20200615/000023.html	Mailing List, Vendor Advisory
cve@mitre.org	http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00064.html	Third Party Advisory
cve@mitre.org	http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00070.html	Third Party Advisory
cve@mitre.org	http://www.mutt.org/	Product
cve@mitre.org	https://github.com/neomutt/neomutt/commit/fb013ec666759cb8a9e294347c7b4c1f597639cc	Patch
cve@mitre.org	https://github.com/neomutt/neomutt/releases/tag/20200619	Release Notes
cve@mitre.org	https://gitlab.com/muttmua/mutt/-/commit/c547433cdf2e79191b15c6932c57f1472bfb5ff4	Patch
cve@mitre.org	https://gitlab.com/muttmua/mutt/-/issues/248	Issue Tracking, Third Party Advisory
cve@mitre.org	https://lists.debian.org/debian-lts-announce/2020/06/msg00039.html	Mailing List, Third Party Advisory
cve@mitre.org	https://lists.debian.org/debian-lts-announce/2020/06/msg00040.html	Mailing List, Third Party Advisory
cve@mitre.org	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EFMEILCBKMZRRZDMUGWLVN4PQQ4VTAZE/
cve@mitre.org	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3LXFVPTLK4PNHL6MPKJNJQJ25CH7GLQ/
cve@mitre.org	https://security.gentoo.org/glsa/202007-57	Third Party Advisory
cve@mitre.org	https://usn.ubuntu.com/4403-1/	Third Party Advisory
cve@mitre.org	https://www.debian.org/security/2020/dsa-4707	Third Party Advisory
cve@mitre.org	https://www.debian.org/security/2020/dsa-4708	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://lists.mutt.org/pipermail/mutt-announce/Week-of-Mon-20200615/000023.html	Mailing List, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00064.html	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00070.html	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://www.mutt.org/	Product
af854a3a-2127-422b-91ae-364da2661108	https://github.com/neomutt/neomutt/commit/fb013ec666759cb8a9e294347c7b4c1f597639cc	Patch
af854a3a-2127-422b-91ae-364da2661108	https://github.com/neomutt/neomutt/releases/tag/20200619	Release Notes
af854a3a-2127-422b-91ae-364da2661108	https://gitlab.com/muttmua/mutt/-/commit/c547433cdf2e79191b15c6932c57f1472bfb5ff4	Patch
af854a3a-2127-422b-91ae-364da2661108	https://gitlab.com/muttmua/mutt/-/issues/248	Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2020/06/msg00039.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2020/06/msg00040.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EFMEILCBKMZRRZDMUGWLVN4PQQ4VTAZE/
af854a3a-2127-422b-91ae-364da2661108	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3LXFVPTLK4PNHL6MPKJNJQJ25CH7GLQ/
af854a3a-2127-422b-91ae-364da2661108	https://security.gentoo.org/glsa/202007-57	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://usn.ubuntu.com/4403-1/	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.debian.org/security/2020/dsa-4707	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.debian.org/security/2020/dsa-4708	Third Party Advisory

Impacted products

Vendor	Product	Version
mutt	mutt	*
debian	debian_linux	9.0
debian	debian_linux	10.0
neomutt	neomutt	*
fedoraproject	fedora	31
fedoraproject	fedora	32
debian	debian_linux	8.0
canonical	ubuntu_linux	12.04
canonical	ubuntu_linux	16.04
canonical	ubuntu_linux	18.04
canonical	ubuntu_linux	19.10
canonical	ubuntu_linux	20.04
opensuse	leap	15.1
opensuse	leap	15.2

JSON

To clipboard

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          "versions": [
            {
              "status": "affected",
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      ],
      "source": "cve@mitre.org"
    }
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mutt before 1.14.4 and NeoMutt before 2020-06-19 have a STARTTLS buffering issue that affects IMAP, SMTP, and POP3. When a server sends a \"begin TLS\" response, the client reads additional data (e.g., from a man-in-the-middle attacker) and evaluates it in a TLS context, aka \"response injection.\""
    },
    {
      "lang": "es",
      "value": "Mutt versiones anteriores a 1.14.4 y NeoMutt antes del 19-06-2020, presentan un problema de almacenamiento de STARTTLS que afecta a IMAP, SMTP y POP3. Cuando un servidor env\u00eda una respuesta \"begin TLS\", el cliente lee datos adicionales (por ejemplo, a partir de un atacante man-in-the-middle) y los eval\u00faa en un contexto TLS, tambi\u00e9n se conoce como \"response injection\""
    }
  ],
  "id": "CVE-2020-14954",
  "lastModified": "2026-06-17T02:55:49.630",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-06-21T17:15:09.603",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Vendor Advisory"
      ],
      "url": "http://lists.mutt.org/pipermail/mutt-announce/Week-of-Mon-20200615/000023.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
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      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00064.html"
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    },
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    },
    {
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      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EFMEILCBKMZRRZDMUGWLVN4PQQ4VTAZE/"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3LXFVPTLK4PNHL6MPKJNJQJ25CH7GLQ/"
    },
    {
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      "tags": [
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      "url": "https://security.gentoo.org/glsa/202007-57"
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    },
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    },
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      "url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00040.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EFMEILCBKMZRRZDMUGWLVN4PQQ4VTAZE/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3LXFVPTLK4PNHL6MPKJNJQJ25CH7GLQ/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "https://security.gentoo.org/glsa/202007-57"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://usn.ubuntu.com/4403-1/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.debian.org/security/2020/dsa-4708"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-74"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2020-14954 (GCVE-0-2020-14954)

Vulnerability from cvelistv5 – Published: 2020-06-21 16:55 – Updated: 2024-08-04 13:00

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

16 references

URL	Tags
https://www.debian.org/security/2020/dsa-4707	vendor-advisoryx_refsource_DEBIAN
http://www.mutt.org/	x_refsource_MISC
https://gitlab.com/muttmua/mutt/-/issues/248	x_refsource_MISC
http://lists.mutt.org/pipermail/mutt-announce/Wee…	x_refsource_MISC
https://gitlab.com/muttmua/mutt/-/commit/c547433c…	x_refsource_MISC
https://github.com/neomutt/neomutt/releases/tag/2…	x_refsource_MISC
https://github.com/neomutt/neomutt/commit/fb013ec…	x_refsource_MISC
https://www.debian.org/security/2020/dsa-4708	vendor-advisoryx_refsource_DEBIAN
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://usn.ubuntu.com/4403-1/	vendor-advisoryx_refsource_UBUNTU
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://security.gentoo.org/glsa/202007-57	vendor-advisoryx_refsource_GENTOO

Show details on NVD website

JSON

To clipboard

{
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T13:00:52.083Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
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            "tags": [
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              "x_refsource_DEBIAN",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.