OESA-2021-1360 (CVE-2021-39272)
Vulnerability from osv_openeuler – Published: 2021-09-30 11:04 – Updated: 2026-08-06 11:04 – Source websiteFetchmail 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 you can read it through your favorite mail client. Install fetchmail if you need to retrieve mail over SLIP or PPP connections.
Security Fix(es):
Fetchmail before 6.4.22 fails to enforce STARTTLS session encryption in some circumstances, such as a certain situation with IMAP and PREAUTH.(CVE-2021-39272)
| URL | Type | |
|---|---|---|
{
"affected": [
{
"ecosystem_specific": {
"aarch64": [
"fetchmail-debuginfo-6.4.22-1.oe1.aarch64.rpm",
"fetchmail-debugsource-6.4.22-1.oe1.aarch64.rpm",
"fetchmail-6.4.22-1.oe1.aarch64.rpm"
],
"noarch": [
"fetchmail-help-6.4.22-1.oe1.noarch.rpm"
],
"src": [
"fetchmail-6.4.22-1.oe1.src.rpm"
],
"x86_64": [
"fetchmail-debugsource-6.4.22-1.oe1.x86_64.rpm",
"fetchmail-6.4.22-1.oe1.x86_64.rpm",
"fetchmail-debuginfo-6.4.22-1.oe1.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:20.03-LTS-SP1",
"name": "fetchmail",
"purl": "pkg:rpm/openEuler/fetchmail\u0026distro=openEuler-20.03-LTS-SP1"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "6.4.22-1.oe1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"ecosystem_specific": {
"aarch64": [
"fetchmail-debugsource-6.4.22-1.oe1.aarch64.rpm",
"fetchmail-debuginfo-6.4.22-1.oe1.aarch64.rpm",
"fetchmail-6.4.22-1.oe1.aarch64.rpm"
],
"noarch": [
"fetchmail-help-6.4.22-1.oe1.noarch.rpm"
],
"src": [
"fetchmail-6.4.22-1.oe1.src.rpm"
],
"x86_64": [
"fetchmail-6.4.22-1.oe1.x86_64.rpm",
"fetchmail-debuginfo-6.4.22-1.oe1.x86_64.rpm",
"fetchmail-debugsource-6.4.22-1.oe1.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:20.03-LTS-SP2",
"name": "fetchmail",
"purl": "pkg:rpm/openEuler/fetchmail\u0026distro=openEuler-20.03-LTS-SP2"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "6.4.22-1.oe1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"severity": "Medium"
},
"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 you can read it through your favorite mail client. Install fetchmail if you need to retrieve mail over SLIP or PPP connections.\r\n\r\nSecurity Fix(es):\r\n\r\nFetchmail before 6.4.22 fails to enforce STARTTLS session encryption in some circumstances, such as a certain situation with IMAP and PREAUTH.(CVE-2021-39272)",
"id": "OESA-2021-1360",
"modified": "2026-08-06T11:04:37Z",
"published": "2021-09-30T11:04:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1360"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39272"
}
],
"schema_version": "1.7.2",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "fetchmail security update",
"upstream": [
"CVE-2021-39272"
]
}
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 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.