CVE-2020-28896

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Source
https://cve.org/CVERecord?id=CVE-2020-28896
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-28896.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-28896
Downstream
Related
Published
2020-11-23T19:15:11.413Z
Modified
2026-02-21T07:33:29.186377Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

Mutt before 2.0.2 and NeoMutt before 2020-11-20 did not ensure that $sslforcetls 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.

References

Affected packages

Git / gitlab.com/muttmua/mutt

Affected ranges

Type
GIT
Repo
https://gitlab.com/muttmua/mutt
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
04b06aaa3e0cc0022b9b01dbca2863756ebbf59a
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
d92689088dfe80a290ec836e292376e2d9984f8f

Affected versions

Other
mutt-0-92-10i
mutt-0-92-11i
mutt-0-92-9i
mutt-0-93-unstable
mutt-0-94-10i-rel
mutt-0-94-13-rel
mutt-0-94-14-rel
mutt-0-94-15-rel
mutt-0-94-16i-rel
mutt-0-94-17i-rel
mutt-0-94-18-rel
mutt-0-94-5i-rel
mutt-0-94-6i-rel
mutt-0-94-7i-rel
mutt-0-94-8i-rel
mutt-0-94-9i-p1
mutt-0-94-9i-rel
mutt-0-95-rel
mutt-0-96-1-rel
mutt-0-96-2-slightly-post-release
mutt-0-96-3-rel
mutt-0-96-4-rel
mutt-0-96-5-rel
mutt-0-96-6-rel
mutt-0-96-7-rel
mutt-0-96-8-rel
mutt-0-96-rel
mutt-1-1-1-1-rel
mutt-1-1-1-2-rel
mutt-1-1-1-rel
mutt-1-1-10-rel
mutt-1-1-11-rel
mutt-1-1-12-rel
mutt-1-1-13-rel
mutt-1-1-14-rel
mutt-1-1-2-rel
mutt-1-1-3-rel
mutt-1-1-4-rel
mutt-1-1-5-rel
mutt-1-1-6-rel
mutt-1-1-7-rel
mutt-1-1-8-rel
mutt-1-1-9-rel
mutt-1-1-rel
mutt-1-10-1-rel
mutt-1-10-rel
mutt-1-11-1-rel
mutt-1-11-2-rel
mutt-1-11-3-rel
mutt-1-11-4-rel
mutt-1-11-rel
mutt-1-12-1-rel
mutt-1-12-2-rel
mutt-1-12-rel
mutt-1-13-1-rel
mutt-1-13-2-rel
mutt-1-13-3-rel
mutt-1-13-4-rel
mutt-1-13-5-rel
mutt-1-13-rel
mutt-1-14-1-rel
mutt-1-14-2-rel
mutt-1-14-3-rel
mutt-1-14-4-rel
mutt-1-14-5-rel
mutt-1-14-6-rel
mutt-1-14-7-rel
mutt-1-14-rel
mutt-1-3-1-rel
mutt-1-3-10-rel
mutt-1-3-11-rel
mutt-1-3-12-rel
mutt-1-3-13-rel
mutt-1-3-14-rel
mutt-1-3-15-rel
mutt-1-3-16-rel
mutt-1-3-17-rel
mutt-1-3-18-rel
mutt-1-3-19-rel
mutt-1-3-2-rel
mutt-1-3-20-rel
mutt-1-3-21-rel
mutt-1-3-22-1-rel
mutt-1-3-22-rel
mutt-1-3-23-1-rel
mutt-1-3-23-2-rel
mutt-1-3-23-rel
mutt-1-3-24-rel
mutt-1-3-25-rel
mutt-1-3-26-rel
mutt-1-3-27-rel
mutt-1-3-3-rel
mutt-1-3-4-rel
mutt-1-3-5-rel
mutt-1-3-6-rel
mutt-1-3-7-rel
mutt-1-3-8-rel
mutt-1-3-9-rel
mutt-1-3-rel
mutt-1-5-1-rel
mutt-1-5-10-rel
mutt-1-5-11-rel
mutt-1-5-12-rel
mutt-1-5-13-rel
mutt-1-5-14-rel
mutt-1-5-15-rel
mutt-1-5-16-rel
mutt-1-5-17-rel
mutt-1-5-18-rel
mutt-1-5-19-rel
mutt-1-5-2-rel
mutt-1-5-20-rel
mutt-1-5-21-rel
mutt-1-5-22-rel
mutt-1-5-23-rel
mutt-1-5-24-rel
mutt-1-5-3-rel
mutt-1-5-4-rel
mutt-1-5-5-1-rel
mutt-1-5-5-rel
mutt-1-5-6-rel
mutt-1-5-7-rel
mutt-1-5-8-rel
mutt-1-5-9-rel
mutt-1-6-1-rel
mutt-1-6-2-rel
mutt-1-6-rel
mutt-1-7-1-rel
mutt-1-7-2-rel
mutt-1-7-rel
mutt-1-8-1-rel
mutt-1-8-2-rel
mutt-1-8-3-rel
mutt-1-8-rel
mutt-1-9-1-rel
mutt-1-9-2-rel
mutt-1-9-3-rel
mutt-1-9-4-rel
mutt-1-9-5-rel
mutt-1-9-rel
mutt-2-0-1-rel
mutt-2-0-rel
post-type-punning-patch
pre-type-punning-patch

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-28896.json"
vanir_signatures 
[
    {
        "signature_version": "v1",
        "source": "https://gitlab.com/muttmua/mutt@04b06aaa3e0cc0022b9b01dbca2863756ebbf59a",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "97681317069022648633321322422684727806",
                "36785202708057762196942193442338311117",
                "253597231540842366146788943724371966919",
                "230559841208464531920669666737772608998",
                "280466068186791739870138129894669237743",
                "262021813882487199219046830141767096521"
            ]
        },
        "target": {
            "file": "imap/imap.c"
        },
        "signature_type": "Line",
        "deprecated": false,
        "id": "CVE-2020-28896-22711cd6"
    },
    {
        "signature_version": "v1",
        "source": "https://gitlab.com/muttmua/mutt@04b06aaa3e0cc0022b9b01dbca2863756ebbf59a",
        "digest": {
            "length": 1763.0,
            "function_hash": "4204636771050573989830569457519837991"
        },
        "target": {
            "file": "imap/imap.c",
            "function": "imap_open_connection"
        },
        "signature_type": "Function",
        "deprecated": false,
        "id": "CVE-2020-28896-9803c123"
    }
]