Vulnerability-Lookup

OESA-2021-1042 (CVE-2020-25275)

Vulnerability from osv_openeuler – Published: 2021-03-05 11:04 – Updated: 2026-08-06 11:04 – Source website

Summary

dovecot security update

Details

Security Fix(es):

Dovecot before 2.3.13 has Improper Input Validation in lda, lmtp, and imap, leading to an application crash via a crafted email message with certain choices for ten thousand MIME parts.(CVE-2020-25275)

An issue was discovered in Dovecot before 2.3.13. By using IMAP IDLE, an authenticated attacker can trigger unhibernation via attacker-controlled parameters, leading to access to other users' email messages (and path disclosure).(CVE-2020-24386)

Severity

7.5 (High)


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

References

URL

Type

	https://openeuler.org/en/security/safety-bulletin…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2020-25275	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2020-24386	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "dovecot-help-2.3.10.1-4.oe1.aarch64.rpm",
          "dovecot-devel-2.3.10.1-4.oe1.aarch64.rpm",
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          "dovecot-debugsource-2.3.10.1-4.oe1.x86_64.rpm"
        ]
      },
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        "purl": "pkg:rpm/openEuler/dovecot\u0026distro=openEuler-20.03-LTS"
      },
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        {
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            {
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            },
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          "type": "ECOSYSTEM"
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    },
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      "ecosystem_specific": {
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        ],
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          "dovecot-2.3.10.1-4.oe1.src.rpm"
        ],
        "x86_64": [
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  "database_specific": {
    "severity": "High"
  },
  "details": "\r\n\r\nSecurity Fix(es):\r\n\r\nDovecot before 2.3.13 has Improper Input Validation in lda, lmtp, and imap, leading to an application crash via a crafted email message with certain choices for ten thousand MIME parts.(CVE-2020-25275)\r\n\r\nAn issue was discovered in Dovecot before 2.3.13. By using IMAP IDLE, an authenticated attacker can trigger unhibernation via attacker-controlled parameters, leading to access to other users\u0027 email messages (and path disclosure).(CVE-2020-24386)",
  "id": "OESA-2021-1042",
  "modified": "2026-08-06T11:04:16Z",
  "published": "2021-03-05T11:04:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1042"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25275"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-24386"
    }
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  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "dovecot security update",
  "upstream": [
    "CVE-2020-25275",
    "CVE-2020-24386"
  ]
}

CVE-2020-24386 (GCVE-0-2020-24386)

Vulnerability from cvelistv5 – Published: 2021-01-04 16:25 – Updated: 2024-08-04 15:12

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

9 references

URL	Tags
https://dovecot.org/security	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2021/01/04/4	x_refsource_CONFIRM
https://dovecot.org/pipermail/dovecot-news/2021-J…	x_refsource_CONFIRM
https://doc.dovecot.org/configuration_manual/hibe…	x_refsource_MISC
https://www.debian.org/security/2021/dsa-4825	vendor-advisoryx_refsource_DEBIAN
http://seclists.org/fulldisclosure/2021/Jan/18	mailing-listx_refsource_FULLDISC
http://packetstormsecurity.com/files/160842/Dovec…	x_refsource_MISC
https://security.gentoo.org/glsa/202101-01	vendor-advisoryx_refsource_GENTOO
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

Show details on NVD website

JSON

To clipboard

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CVE-2020-25275 (GCVE-0-2020-25275)

Vulnerability from cvelistv5 – Published: 2021-01-04 16:19 – Updated: 2024-08-04 15:33

Summary

Dovecot before 2.3.13 has Improper Input Validation in lda, lmtp, and imap, leading to an application crash via a crafted email message with certain choices for ten thousand MIME parts.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

8 references

URL	Tags
https://dovecot.org/security	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2021/01/04/3	x_refsource_CONFIRM
https://dovecot.org/pipermail/dovecot-news/2021-J…	x_refsource_CONFIRM
https://www.debian.org/security/2021/dsa-4825	vendor-advisoryx_refsource_DEBIAN
http://seclists.org/fulldisclosure/2021/Jan/18	mailing-listx_refsource_FULLDISC
http://packetstormsecurity.com/files/160841/Dovec…	x_refsource_MISC
https://security.gentoo.org/glsa/202101-01	vendor-advisoryx_refsource_GENTOO
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

Show details on NVD website

JSON

To clipboard

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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.

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.

Action not permitted

OESA-2021-1042 (CVE-2020-25275)

CVE-2020-24386 (GCVE-0-2020-24386)

CVE-2020-25275 (GCVE-0-2020-25275)

Tags

Sightings

Nomenclature

Related by attack behaviour