CVE-2020-27840

A flaw was found in samba. Spaces used in a string around a domain name (DN), while supposed to be ignored, can cause invalid DN strings with spaces to instead write a zero-byte into out-of-bounds memory, resulting in a crash. The highest threat from this vulnerability is to system availability.

Database specific

{
    "unresolved_ranges": [
        {
            "cpe": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "10.0"
                }
            ],
            "source": "CPE_FIELD"
        },
        {
            "cpe": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "9.0"
                }
            ],
            "source": "CPE_FIELD"
        },
        {
            "cpe": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "32"
                }
            ],
            "source": "CPE_FIELD"
        },
        {
            "cpe": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "33"
                }
            ],
            "source": "CPE_FIELD"
        },
        {
            "cpe": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "34"
                }
            ],
            "source": "CPE_FIELD"
        }
    ]
}

References

Affected packages

Git / github.com/samba-team/samba

Affected ranges

Type

GIT

Repo

https://github.com/samba-team/samba

Events

Introduced

df33344d8eb40221d60c99931690703a11d91bc2

Fixed

bb2f64babf1a2bfb780d0325e859f796d0ce1647

Introduced

3fe82c204f0d88cb6db50b7bd1f798b591a918f8

Fixed

440b75fda7092b88b1986759c40f95ed65c2da24

Introduced

9b49519cae3e967af9ea48dc5fcfb6c145e31db4

Fixed

ed4a04eca53906ab7d69667545b414fa84fe5404

Database specific

{
    "cpe": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "4.0.0"
        },
        {
            "fixed": "4.12.13"
        },
        {
            "introduced": "4.13.0"
        },
        {
            "fixed": "4.13.6"
        },
        {
            "introduced": "4.14.0"
        },
        {
            "fixed": "4.14.1"
        }
    ],
    "source": "CPE_FIELD"
}

Affected versions

samba-4.*

samba-4.13.0

samba-4.13.2

samba-4.13.3

samba-4.13.4

samba-4.13.5

samba-4.14.0

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-27840.json"