Vulnerability-Lookup

oesa-2021-1005

Vulnerability from osv_openeuler

Published

2021-02-04 11:04

Modified

2026-08-06 11:04

Summary

mutt security update

Details

Mutt is a small but very powerful text-based mail client for Unix operating systems.\r\n\r\n Security Fix(es):\r\n\r\n Mutt before 2.0.2 and NeoMutt before 2020-11-20 did not ensure that $ssl_force_tls was processed if an IMAP server's initial server response was invalid. The connection was not properly closed, and the code could continue attempting to authenticate. This could result in authentication credentials being exposed on an unencrypted connection, or to a machine-in-the-middle.(CVE-2020-28896)\r\n\r\n

Severity

5.3 (Medium)


                    
                      CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

References

URL

Type

	https://openeuler.org/en/security/safety-bulletin…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2020-28896	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "mutt-debuginfo-1.10.1-3.oe1.aarch64.rpm",
          "mutt-1.10.1-3.oe1.aarch64.rpm",
          "mutt-debugsource-1.10.1-3.oe1.aarch64.rpm",
          "mutt-debuginfo-1.10.1-4.oe1.aarch64.rpm",
          "mutt-1.10.1-4.oe1.aarch64.rpm",
          "mutt-debugsource-1.10.1-4.oe1.aarch64.rpm"
        ],
        "noarch": [
          "mutt-help-1.10.1-3.oe1.noarch.rpm",
          "mutt-help-1.10.1-4.oe1.noarch.rpm"
        ],
        "src": [
          "mutt-1.10.1-3.oe1.src.rpm",
          "mutt-1.10.1-4.oe1.src.rpm"
        ],
        "x86_64": [
          "mutt-1.10.1-3.oe1.x86_64.rpm",
          "mutt-debugsource-1.10.1-3.oe1.x86_64.rpm",
          "mutt-debuginfo-1.10.1-3.oe1.x86_64.rpm",
          "mutt-1.10.1-4.oe1.x86_64.rpm",
          "mutt-debugsource-1.10.1-4.oe1.x86_64.rpm",
          "mutt-debuginfo-1.10.1-4.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS",
        "name": "mutt",
        "purl": "pkg:rpm/openEuler/mutt\u0026distro=openEuler-20.03-LTS"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.10.1-4.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "mutt-debuginfo-1.10.1-4.oe1.aarch64.rpm",
          "mutt-1.10.1-4.oe1.aarch64.rpm",
          "mutt-debugsource-1.10.1-4.oe1.aarch64.rpm"
        ],
        "noarch": [
          "mutt-help-1.10.1-4.oe1.noarch.rpm"
        ],
        "src": [
          "mutt-1.10.1-4.oe1.src.rpm"
        ],
        "x86_64": [
          "mutt-1.10.1-4.oe1.x86_64.rpm",
          "mutt-debugsource-1.10.1-4.oe1.x86_64.rpm",
          "mutt-debuginfo-1.10.1-4.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "mutt",
        "purl": "pkg:rpm/openEuler/mutt\u0026distro=openEuler-20.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.10.1-4.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "Mutt is a small but very powerful text-based mail client for Unix operating systems.\\r\\n\\r\\n\r\nSecurity Fix(es):\\r\\n\\r\\n\r\nMutt before 2.0.2 and NeoMutt before 2020-11-20 did not ensure that $ssl_force_tls was processed if an IMAP server\u0027s initial server response was invalid. The connection was not properly closed, and the code could continue attempting to authenticate. This could result in authentication credentials being exposed on an unencrypted connection, or to a machine-in-the-middle.(CVE-2020-28896)\\r\\n\\r\\n",
  "id": "OESA-2021-1005",
  "modified": "2026-08-06T11:04:14Z",
  "published": "2021-02-04T11:04:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1005"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-28896"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "mutt security update",
  "upstream": [
    "CVE-2020-28896"
  ]
}

CVE-2020-28896 (GCVE-0-2020-28896)

Vulnerability from cvelistv5 – Published: 2020-11-23 18:52 – Updated: 2024-08-04 16:41

Summary

Mutt before 2.0.2 and NeoMutt before 2020-11-20 did not ensure that $ssl_force_tls was processed if an IMAP server's initial server response was invalid. The connection was not properly closed, and the code could continue attempting to authenticate. This could result in authentication credentials being exposed on an unencrypted connection, or to a machine-in-the-middle.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

6 references

URL	Tags
https://gitlab.com/muttmua/mutt/-/commit/d9268908…	x_refsource_MISC
https://gitlab.com/muttmua/mutt/-/commit/04b06aaa…	x_refsource_MISC
https://github.com/neomutt/neomutt/commit/9c36717…	x_refsource_MISC
https://github.com/neomutt/neomutt/releases/tag/2…	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://security.gentoo.org/glsa/202101-32	vendor-advisoryx_refsource_GENTOO

Show details on NVD website

JSON

To clipboard

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            "url": "https://lists.debian.org/debian-lts-announce/2020/11/msg00048.html"
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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.