CVE-2023-52442

See a problem?
Please try reporting it to the source first.
Source
https://nvd.nist.gov/vuln/detail/CVE-2023-52442
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52442.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-52442
Downstream
Published
2024-02-21T07:21:01Z
Modified
2025-10-21T14:36:08.337936Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
ksmbd: validate session id and tree id in compound request
Details

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: validate session id and tree id in compound request

smb2_get_msg() in smb2getksmbdtcon() and smb2checkusersession() will always return the first request smb2 header in a compound request. if SMB2_TREE_CONNECT_HE is the first command in compound request, will return 0, i.e. The tree id check is skipped. This patch use ksmbdreqbuf_next() to get current command in compound.

References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0626e6641f6b467447c81dd7678a69c66f7746cf
Fixed
017d85c94f02090a87f4a473dbe0d6ee0da72693
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0626e6641f6b467447c81dd7678a69c66f7746cf
Fixed
becb5191d1d5fdfca0198a2e37457bbbf4fe266f
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0626e6641f6b467447c81dd7678a69c66f7746cf
Fixed
4c2b350b2e269e3fd17bbfa42de1b42775b777ac
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0626e6641f6b467447c81dd7678a69c66f7746cf
Fixed
3df0411e132ee74a87aa13142dfd2b190275332e

Affected versions

v5.*

v5.13
v5.13-rc2
v5.13-rc3
v5.13-rc4
v5.13-rc5
v5.13-rc6
v5.13-rc7
v5.14
v5.14-rc1
v5.14-rc2
v5.14-rc3
v5.14-rc4
v5.14-rc5
v5.14-rc6
v5.14-rc7
v5.15
v5.15-rc1
v5.15-rc2
v5.15-rc3
v5.15-rc4
v5.15-rc5
v5.15-rc6
v5.15-rc7
v5.15.1
v5.15.10
v5.15.100
v5.15.101
v5.15.102
v5.15.103
v5.15.104
v5.15.105
v5.15.106
v5.15.107
v5.15.108
v5.15.109
v5.15.11
v5.15.110
v5.15.111
v5.15.112
v5.15.113
v5.15.114
v5.15.115
v5.15.116
v5.15.117
v5.15.118
v5.15.119
v5.15.12
v5.15.120
v5.15.121
v5.15.122
v5.15.123
v5.15.124
v5.15.125
v5.15.126
v5.15.127
v5.15.128
v5.15.129
v5.15.13
v5.15.130
v5.15.131
v5.15.132
v5.15.133
v5.15.134
v5.15.135
v5.15.136
v5.15.137
v5.15.138
v5.15.139
v5.15.14
v5.15.140
v5.15.141
v5.15.142
v5.15.143
v5.15.144
v5.15.15
v5.15.16
v5.15.17
v5.15.18
v5.15.19
v5.15.2
v5.15.20
v5.15.21
v5.15.22
v5.15.23
v5.15.24
v5.15.25
v5.15.26
v5.15.27
v5.15.28
v5.15.29
v5.15.3
v5.15.30
v5.15.31
v5.15.32
v5.15.33
v5.15.34
v5.15.35
v5.15.36
v5.15.37
v5.15.38
v5.15.39
v5.15.4
v5.15.40
v5.15.41
v5.15.42
v5.15.43
v5.15.44
v5.15.45
v5.15.46
v5.15.47
v5.15.48
v5.15.49
v5.15.5
v5.15.50
v5.15.51
v5.15.52
v5.15.53
v5.15.54
v5.15.55
v5.15.56
v5.15.57
v5.15.58
v5.15.59
v5.15.6
v5.15.60
v5.15.61
v5.15.62
v5.15.63
v5.15.64
v5.15.65
v5.15.66
v5.15.67
v5.15.68
v5.15.69
v5.15.7
v5.15.70
v5.15.71
v5.15.72
v5.15.73
v5.15.74
v5.15.75
v5.15.76
v5.15.77
v5.15.78
v5.15.79
v5.15.8
v5.15.80
v5.15.81
v5.15.82
v5.15.83
v5.15.84
v5.15.85
v5.15.86
v5.15.87
v5.15.88
v5.15.89
v5.15.9
v5.15.90
v5.15.91
v5.15.92
v5.15.93
v5.15.94
v5.15.95
v5.15.96
v5.15.97
v5.15.98
v5.15.99
v5.16
v5.16-rc1
v5.16-rc2
v5.16-rc3
v5.16-rc4
v5.16-rc5
v5.16-rc6
v5.16-rc7
v5.16-rc8
v5.17
v5.17-rc1
v5.17-rc2
v5.17-rc3
v5.17-rc4
v5.17-rc5
v5.17-rc6
v5.17-rc7
v5.17-rc8
v5.18
v5.18-rc1
v5.18-rc2
v5.18-rc3
v5.18-rc4
v5.18-rc5
v5.18-rc6
v5.18-rc7
v5.19
v5.19-rc1
v5.19-rc2
v5.19-rc3
v5.19-rc4
v5.19-rc5
v5.19-rc6
v5.19-rc7
v5.19-rc8

v6.*

v6.0
v6.0-rc1
v6.0-rc2
v6.0-rc3
v6.0-rc4
v6.0-rc5
v6.0-rc6
v6.0-rc7
v6.1
v6.1-rc1
v6.1-rc2
v6.1-rc3
v6.1-rc4
v6.1-rc5
v6.1-rc6
v6.1-rc7
v6.1-rc8
v6.1.1
v6.1.10
v6.1.11
v6.1.12
v6.1.13
v6.1.14
v6.1.15
v6.1.16
v6.1.17
v6.1.18
v6.1.19
v6.1.2
v6.1.20
v6.1.21
v6.1.22
v6.1.23
v6.1.24
v6.1.25
v6.1.26
v6.1.27
v6.1.28
v6.1.29
v6.1.3
v6.1.30
v6.1.31
v6.1.32
v6.1.33
v6.1.34
v6.1.35
v6.1.36
v6.1.37
v6.1.38
v6.1.39
v6.1.4
v6.1.40
v6.1.41
v6.1.42
v6.1.43
v6.1.44
v6.1.45
v6.1.46
v6.1.47
v6.1.48
v6.1.49
v6.1.5
v6.1.50
v6.1.51
v6.1.52
v6.1.6
v6.1.7
v6.1.8
v6.1.9
v6.2
v6.2-rc1
v6.2-rc2
v6.2-rc3
v6.2-rc4
v6.2-rc5
v6.2-rc6
v6.2-rc7
v6.2-rc8
v6.3
v6.3-rc1
v6.3-rc2
v6.3-rc3
v6.3-rc4
v6.3-rc5
v6.3-rc6
v6.3-rc7
v6.4
v6.4-rc1
v6.4-rc2
v6.4-rc3
v6.4-rc4
v6.4-rc5
v6.4-rc6
v6.4-rc7
v6.4.1
v6.4.10
v6.4.11
v6.4.12
v6.4.13
v6.4.14
v6.4.15
v6.4.2
v6.4.3
v6.4.4
v6.4.5
v6.4.6
v6.4.7
v6.4.8
v6.4.9
v6.5-rc1

Database specific

vanir_signatures

[
    {
        "target": {
            "file": "fs/ksmbd/smb2pdu.c"
        },
        "signature_type": "Line",
        "signature_version": "v1",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "314114778691861352691674272884650686939",
                "179009439859036761731800321911301527446",
                "267162110132818310050397398542124695644",
                "162870346127257452803088579265055313640",
                "311276446047388058347008046600828830845",
                "115445420372303393940333194945109082892",
                "152673160142468479804102473929354208428",
                "212351798938790602370690937317829209410",
                "279237330481759816117039500920709714247",
                "166774823524589010815061065065793710948",
                "294927928926202382067799527596989942926",
                "43875435953798234382464620393324090427",
                "219312813918507647594387712390533084115",
                "213704572000106640034690912336866395587",
                "234221029696074978106873631474513060955",
                "122483738730445111454614983940718707477",
                "296708006196616508043373078362061838631",
                "173366342123958216362156539005887912033",
                "324227619158098997701440529815423841192",
                "245475756017105683870186484593627044875"
            ]
        },
        "deprecated": false,
        "id": "CVE-2023-52442-19394e17",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@017d85c94f02090a87f4a473dbe0d6ee0da72693"
    },
    {
        "target": {
            "file": "fs/smb/server/smb2pdu.c"
        },
        "signature_type": "Line",
        "signature_version": "v1",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "314114778691861352691674272884650686939",
                "179009439859036761731800321911301527446",
                "267162110132818310050397398542124695644",
                "162870346127257452803088579265055313640",
                "311276446047388058347008046600828830845",
                "115445420372303393940333194945109082892",
                "152673160142468479804102473929354208428",
                "212351798938790602370690937317829209410",
                "279237330481759816117039500920709714247",
                "166774823524589010815061065065793710948",
                "294927928926202382067799527596989942926",
                "43875435953798234382464620393324090427",
                "219312813918507647594387712390533084115",
                "213704572000106640034690912336866395587",
                "234221029696074978106873631474513060955",
                "122483738730445111454614983940718707477",
                "296708006196616508043373078362061838631",
                "173366342123958216362156539005887912033",
                "324227619158098997701440529815423841192",
                "245475756017105683870186484593627044875"
            ]
        },
        "deprecated": false,
        "id": "CVE-2023-52442-3cf74a4d",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@becb5191d1d5fdfca0198a2e37457bbbf4fe266f"
    },
    {
        "target": {
            "function": "smb2_check_user_session",
            "file": "fs/smb/server/smb2pdu.c"
        },
        "signature_type": "Function",
        "signature_version": "v1",
        "digest": {
            "function_hash": "141438921182275685870922538477746800091",
            "length": 861.0
        },
        "deprecated": false,
        "id": "CVE-2023-52442-42ca3b6f",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@4c2b350b2e269e3fd17bbfa42de1b42775b777ac"
    },
    {
        "target": {
            "function": "smb2_get_ksmbd_tcon",
            "file": "fs/smb/server/smb2pdu.c"
        },
        "signature_type": "Function",
        "signature_version": "v1",
        "digest": {
            "function_hash": "203093626701630813101085817769052565625",
            "length": 951.0
        },
        "deprecated": false,
        "id": "CVE-2023-52442-54ae3d3c",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@4c2b350b2e269e3fd17bbfa42de1b42775b777ac"
    },
    {
        "target": {
            "file": "fs/smb/server/smb2pdu.c"
        },
        "signature_type": "Line",
        "signature_version": "v1",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "314114778691861352691674272884650686939",
                "179009439859036761731800321911301527446",
                "267162110132818310050397398542124695644",
                "162870346127257452803088579265055313640",
                "311276446047388058347008046600828830845",
                "115445420372303393940333194945109082892",
                "152673160142468479804102473929354208428",
                "212351798938790602370690937317829209410",
                "279237330481759816117039500920709714247",
                "166774823524589010815061065065793710948",
                "294927928926202382067799527596989942926",
                "43875435953798234382464620393324090427",
                "219312813918507647594387712390533084115",
                "213704572000106640034690912336866395587",
                "234221029696074978106873631474513060955",
                "122483738730445111454614983940718707477",
                "296708006196616508043373078362061838631",
                "173366342123958216362156539005887912033",
                "324227619158098997701440529815423841192",
                "245475756017105683870186484593627044875"
            ]
        },
        "deprecated": false,
        "id": "CVE-2023-52442-5ceafd87",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@4c2b350b2e269e3fd17bbfa42de1b42775b777ac"
    },
    {
        "target": {
            "function": "smb2_check_user_session",
            "file": "fs/ksmbd/smb2pdu.c"
        },
        "signature_type": "Function",
        "signature_version": "v1",
        "digest": {
            "function_hash": "141438921182275685870922538477746800091",
            "length": 861.0
        },
        "deprecated": false,
        "id": "CVE-2023-52442-5f1aec8e",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@017d85c94f02090a87f4a473dbe0d6ee0da72693"
    },
    {
        "target": {
            "function": "smb2_check_user_session",
            "file": "fs/smb/server/smb2pdu.c"
        },
        "signature_type": "Function",
        "signature_version": "v1",
        "digest": {
            "function_hash": "141438921182275685870922538477746800091",
            "length": 861.0
        },
        "deprecated": false,
        "id": "CVE-2023-52442-622300a7",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@3df0411e132ee74a87aa13142dfd2b190275332e"
    },
    {
        "target": {
            "function": "smb2_get_ksmbd_tcon",
            "file": "fs/ksmbd/smb2pdu.c"
        },
        "signature_type": "Function",
        "signature_version": "v1",
        "digest": {
            "function_hash": "203093626701630813101085817769052565625",
            "length": 951.0
        },
        "deprecated": false,
        "id": "CVE-2023-52442-6d5e7f6f",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@017d85c94f02090a87f4a473dbe0d6ee0da72693"
    },
    {
        "target": {
            "function": "smb2_check_user_session",
            "file": "fs/smb/server/smb2pdu.c"
        },
        "signature_type": "Function",
        "signature_version": "v1",
        "digest": {
            "function_hash": "141438921182275685870922538477746800091",
            "length": 861.0
        },
        "deprecated": false,
        "id": "CVE-2023-52442-83a4b897",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@becb5191d1d5fdfca0198a2e37457bbbf4fe266f"
    },
    {
        "target": {
            "file": "fs/smb/server/smb2pdu.c"
        },
        "signature_type": "Line",
        "signature_version": "v1",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "314114778691861352691674272884650686939",
                "179009439859036761731800321911301527446",
                "267162110132818310050397398542124695644",
                "162870346127257452803088579265055313640",
                "311276446047388058347008046600828830845",
                "115445420372303393940333194945109082892",
                "152673160142468479804102473929354208428",
                "212351798938790602370690937317829209410",
                "279237330481759816117039500920709714247",
                "166774823524589010815061065065793710948",
                "294927928926202382067799527596989942926",
                "43875435953798234382464620393324090427",
                "219312813918507647594387712390533084115",
                "213704572000106640034690912336866395587",
                "234221029696074978106873631474513060955",
                "122483738730445111454614983940718707477",
                "296708006196616508043373078362061838631",
                "173366342123958216362156539005887912033",
                "324227619158098997701440529815423841192",
                "245475756017105683870186484593627044875"
            ]
        },
        "deprecated": false,
        "id": "CVE-2023-52442-b820e9da",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@3df0411e132ee74a87aa13142dfd2b190275332e"
    },
    {
        "target": {
            "function": "smb2_get_ksmbd_tcon",
            "file": "fs/smb/server/smb2pdu.c"
        },
        "signature_type": "Function",
        "signature_version": "v1",
        "digest": {
            "function_hash": "203093626701630813101085817769052565625",
            "length": 951.0
        },
        "deprecated": false,
        "id": "CVE-2023-52442-e9e2d45b",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@3df0411e132ee74a87aa13142dfd2b190275332e"
    },
    {
        "target": {
            "function": "smb2_get_ksmbd_tcon",
            "file": "fs/smb/server/smb2pdu.c"
        },
        "signature_type": "Function",
        "signature_version": "v1",
        "digest": {
            "function_hash": "203093626701630813101085817769052565625",
            "length": 951.0
        },
        "deprecated": false,
        "id": "CVE-2023-52442-fe8bf065",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@becb5191d1d5fdfca0198a2e37457bbbf4fe266f"
    }
]

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.15.0
Fixed
5.15.145
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.53
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.4.16