CVE-2023-42669

A vulnerability was found in Samba's "rpcecho" development server, a non-Windows RPC server used to test Samba's DCE/RPC stack elements. This vulnerability stems from an RPC function that can be blocked indefinitely. The issue arises because the "rpcecho" service operates with only one worker in the main RPC task, allowing calls to the "rpcecho" server to be blocked for a specified time, causing service disruptions. This disruption is triggered by a "sleep()" call in the "dcesrvechoTestSleep()" function under specific conditions. Authenticated users or attackers can exploit this vulnerability to make calls to the "rpcecho" server, requesting it to block for a specified duration, effectively disrupting most services and leading to a complete denial of service on the AD DC. The DoS affects all other services as "rpcecho" runs in the main RPC task.

References

Affected packages

Git / github.com/samba-team/samba

Affected ranges

Type

GIT

Repo

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

Events

Introduced

df33344d8eb40221d60c99931690703a11d91bc2

Fixed

7ec207cd4146919e4ee88e5522647c169baf6922

Introduced

a597a8767fabfe85ee0bcf869407e770a0c3e184

Fixed

f1c0d4f1feb8105d22307e29150e0b7d59b5fed9

Introduced

b7921852ad6ac048abbbe577b9faced2d694c685

Fixed

d9e90993b4049bac99227c8f3c8823df45f7f46d

Introduced

Last affected

4fba936a8ab9afbdb7eaf2789d57850fbec35a77

Database specific

{
    "versions": [
        {
            "introduced": "4.0.0"
        },
        {
            "fixed": "4.17.12"
        },
        {
            "introduced": "4.18.0"
        },
        {
            "fixed": "4.18.8"
        },
        {
            "introduced": "4.19.0"
        },
        {
            "fixed": "4.19.1"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "3.0"
        }
    ]
}

Affected versions

ldb-1.*

ldb-1.1.0

ldb-1.1.10

ldb-1.1.11

ldb-1.1.12

ldb-1.1.13

ldb-1.1.14

ldb-1.1.15

ldb-1.1.16

ldb-1.1.17

ldb-1.1.18

ldb-1.1.19

ldb-1.1.2

ldb-1.1.20

ldb-1.1.21

ldb-1.1.22

ldb-1.1.23

ldb-1.1.25

ldb-1.1.26

ldb-1.1.27

ldb-1.1.28

ldb-1.1.29

ldb-1.1.3

ldb-1.1.30

ldb-1.1.31

ldb-1.1.4

ldb-1.1.5

ldb-1.1.6

ldb-1.1.8

ldb-1.1.9

ldb-1.2.0

ldb-1.2.1

ldb-1.2.2

ldb-1.3.0

ldb-1.3.1

ldb-1.3.2

ldb-1.4.0

ldb-1.4.1

ldb-1.5.0

ldb-1.5.1

ldb-1.5.2

ldb-1.6.1

ldb-1.6.2

ldb-1.6.3

ldb-2.*

ldb-2.0.5

ldb-2.1.0

ldb-2.1.1

ldb-2.2.0

ldb-2.4.0

ldb-2.5.0

ldb-2.6.0

ldb-2.6.1

ldb-2.6.2

ldb-2.7.2

samba-4.*

samba-4.0.0alpha10

samba-4.0.0alpha17

samba-4.0.0alpha18

samba-4.0.0alpha19

samba-4.0.0alpha20

samba-4.0.0alpha21

samba-4.0.0alpha6

samba-4.0.0alpha7

samba-4.0.0alpha8

samba-4.0.0alpha9

samba-4.0.0beta1

samba-4.0.0beta2

samba-4.0.0beta3

samba-4.0.0beta4

samba-4.0.0beta5

samba-4.0.0beta6

samba-4.0.0beta7

samba-4.0.0beta8

samba-4.0.0rc1

samba-4.10.0rc1

samba-4.11.0rc1

samba-4.12.0rc1

samba-4.13.0rc1

samba-4.14.0rc1

samba-4.15.0rc1

samba-4.16.0rc1

samba-4.17.0

samba-4.17.0rc1

samba-4.17.0rc2

samba-4.17.0rc3

samba-4.17.0rc4

samba-4.17.0rc5

samba-4.17.1

samba-4.17.10

samba-4.17.11

samba-4.17.2

samba-4.17.4

samba-4.17.5

samba-4.17.6

samba-4.17.7

samba-4.17.8

samba-4.17.9

samba-4.18.0

samba-4.18.1

samba-4.18.2

samba-4.18.3

samba-4.18.4

samba-4.18.6

samba-4.18.7

samba-4.19.0

samba-4.2.0rc1

samba-4.3.0rc1

samba-4.4.0rc1

samba-4.5.0rc1

samba-4.6.0rc1

samba-4.7.0rc1

samba-4.8.0rc1

samba-4.9.0rc1

Other

samba-misc-tags/samba-3-0-split

talloc-1.*

talloc-1.3.1

talloc-2.*

talloc-2.0.0

talloc-2.0.7

talloc-2.0.8

talloc-2.1.0

talloc-2.1.1

talloc-2.1.10

talloc-2.1.11

talloc-2.1.12

talloc-2.1.13

talloc-2.1.14

talloc-2.1.15

talloc-2.1.16

talloc-2.1.2

talloc-2.1.3

talloc-2.1.4

talloc-2.1.5

talloc-2.1.6

talloc-2.1.7

talloc-2.1.8

talloc-2.1.9

talloc-2.2.0

talloc-2.3.0

talloc-2.3.1

talloc-2.3.2

talloc-2.3.3

talloc-2.3.4

tdb-1.*

tdb-1.1.5

tdb-1.2.0

tdb-1.2.1

tdb-1.2.10

tdb-1.2.11

tdb-1.2.12

tdb-1.2.13

tdb-1.3.0

tdb-1.3.1

tdb-1.3.10

tdb-1.3.11

tdb-1.3.12

tdb-1.3.13

tdb-1.3.14

tdb-1.3.15

tdb-1.3.16

tdb-1.3.17

tdb-1.3.18

tdb-1.3.2

tdb-1.3.3

tdb-1.3.4

tdb-1.3.5

tdb-1.3.6

tdb-1.3.7

tdb-1.3.8

tdb-1.3.9

tdb-1.4.0

tdb-1.4.1

tdb-1.4.2

tdb-1.4.3

tdb-1.4.4

tdb-1.4.5

tdb-1.4.6

tdb-1.4.7

tevent-0.*

tevent-0.10.0

tevent-0.10.1

tevent-0.10.2

tevent-0.11.0

tevent-0.12.0

tevent-0.12.1

tevent-0.13.0

tevent-0.9.11

tevent-0.9.12

tevent-0.9.13

tevent-0.9.14

tevent-0.9.15

tevent-0.9.16

tevent-0.9.17

tevent-0.9.18

tevent-0.9.19

tevent-0.9.20

tevent-0.9.21

tevent-0.9.22

tevent-0.9.23

tevent-0.9.24

tevent-0.9.25

tevent-0.9.26

tevent-0.9.27

tevent-0.9.28

tevent-0.9.29

tevent-0.9.30

tevent-0.9.31

tevent-0.9.32

tevent-0.9.33

tevent-0.9.34

tevent-0.9.35

tevent-0.9.36

tevent-0.9.37

tevent-0.9.38

tevent-0.9.39

tevent-0.9.8

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-42669.json"

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "9.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "9.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "9.0_s390x"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "9.0_s390x"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "9.0_ppc64le"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "9.0_ppc64le"
            }
        ]
    }
]