CVE-2023-4091

A vulnerability was discovered in Samba, where the flaw allows SMB clients to truncate files, even with read-only permissions when the Samba VFS module "aclxattr" is configured with "aclxattr:ignore system acls = yes". The SMB protocol allows opening files when the client requests read-only access but then implicitly truncates the opened file to 0 bytes if the client specifies a separate OVERWRITE create disposition request. The issue arises in configurations that bypass kernel file system permissions checks, relying solely on Samba's permissions.

Database specific

{
    "cna_assigner": "redhat",
    "cwe_ids": [
        "CWE-276"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/4xxx/CVE-2023-4091.json"
}

References

Affected packages

Git / github.com/samba-team/samba

Affected ranges

Type

GIT

Repo

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

Events

Introduced

Fixed

7ec207cd4146919e4ee88e5522647c169baf6922

Introduced

a597a8767fabfe85ee0bcf869407e770a0c3e184

Fixed

f1c0d4f1feb8105d22307e29150e0b7d59b5fed9

Introduced

b7921852ad6ac048abbbe577b9faced2d694c685

Fixed

d9e90993b4049bac99227c8f3c8823df45f7f46d

Database specific

{
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "4.17.12"
        },
        {
            "introduced": "4.18.0"
        },
        {
            "fixed": "4.18.8"
        },
        {
            "introduced": "4.19.0"
        },
        {
            "fixed": "4.19.1"
        }
    ],
    "cpe": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*"
}

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

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/osv-test-cve-osv-conversion/osv-output/CVE-2023-4091.json"