CVE-2020-7957

The IMAP and LMTP components in Dovecot 2.3.9 before 2.3.9.3 mishandle snippet generation when many characters must be read to compute the snippet and a trailing > character exists. This causes a denial of service in which the recipient cannot read all of their messages.

Database specific

{
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "30"
                },
                {
                    "last_affected": "30"
                },
                {
                    "introduced": "31"
                },
                {
                    "last_affected": "31"
                }
            ],
            "cpes": [
                "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*",
                "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*"
            ],
            "source": "CPE_STRING",
            "vendor_product": "fedoraproject:fedora"
        }
    ]
}

References

Affected packages

Git / github.com/dovecot/core

Affected ranges

Type

GIT

Repo

https://github.com/dovecot/core

Events

Introduced

e7f79df9925091027280d88db05fb0135e35e75a

Fixed

9f41b88fafd73dbc2b33965267425813b9c6456b

Database specific

{
    "cpe": "cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "2.3.9"
        },
        {
            "fixed": "2.3.9.3"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

2.*

2.3.9

2.3.9.1

2.3.9.2

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-7957.json"