CVE-2023-52618

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Source
https://nvd.nist.gov/vuln/detail/CVE-2023-52618
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52618.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-52618
Downstream
Related
Published
2024-03-18T10:19:05Z
Modified
2025-10-21T15:01:11.710429Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
block/rnbd-srv: Check for unlikely string overflow
Details

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

block/rnbd-srv: Check for unlikely string overflow

Since "devsearchpath" can technically be as large as PATHMAX, there was a risk of truncation when copying it and a second string into "fullpath" since it was also PATH_MAX sized. The W=1 builds were reporting this warning:

drivers/block/rnbd/rnbd-srv.c: In function 'processmsgopen.isra': drivers/block/rnbd/rnbd-srv.c:616:51: warning: '%s' directive output may be truncated writing up to 254 bytes into a region of size between 0 and 4095 [-Wformat-truncation=] 616 | snprintf(fullpath, PATHMAX, "%s/%s", | ^~ In function 'rnbdsrvgetfullpath', inlined from 'processmsgopen.isra' at drivers/block/rnbd/rnbd-srv.c:721:14: drivers/block/rnbd/rnbd-srv.c:616:17: note: 'snprintf' output between 2 and 4351 bytes into a destination of size 4096 616 | snprintf(fullpath, PATHMAX, "%s/%s", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 617 | devsearchpath, dev_name); | ~~~~~~~~~~~~~~~~~~~~~~~~~~

To fix this, unconditionally check for truncation (as was already done for the case where "%SESSNAME%" was present).

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
2de6c8de192b9341ffa5e84afe1ce6196d4eef41
Fixed
95bc866c11974d3e4a9d922275ea8127ff809cf7
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2de6c8de192b9341ffa5e84afe1ce6196d4eef41
Fixed
f6abd5e17da33eba15df2bddc93413e76c2b55f7
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2de6c8de192b9341ffa5e84afe1ce6196d4eef41
Fixed
af7bbdac89739e2e7380387fda598848d3b7010f
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2de6c8de192b9341ffa5e84afe1ce6196d4eef41
Fixed
5b9ea86e662035a886ccb5c76d56793cba618827
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2de6c8de192b9341ffa5e84afe1ce6196d4eef41
Fixed
a2c6206f18104fba7f887bf4dbbfe4c41adc4339
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2de6c8de192b9341ffa5e84afe1ce6196d4eef41
Fixed
9e4bf6a08d1e127bcc4bd72557f2dfafc6bc7f41

Affected versions

v5.*

v5.10
v5.10-rc1
v5.10-rc2
v5.10-rc3
v5.10-rc4
v5.10-rc5
v5.10-rc6
v5.10-rc7
v5.10.1
v5.10.10
v5.10.100
v5.10.101
v5.10.102
v5.10.103
v5.10.104
v5.10.105
v5.10.106
v5.10.107
v5.10.108
v5.10.109
v5.10.11
v5.10.110
v5.10.111
v5.10.112
v5.10.113
v5.10.114
v5.10.115
v5.10.116
v5.10.117
v5.10.118
v5.10.119
v5.10.12
v5.10.120
v5.10.121
v5.10.122
v5.10.123
v5.10.124
v5.10.125
v5.10.126
v5.10.127
v5.10.128
v5.10.129
v5.10.13
v5.10.130
v5.10.131
v5.10.132
v5.10.133
v5.10.134
v5.10.135
v5.10.136
v5.10.137
v5.10.138
v5.10.139
v5.10.14
v5.10.140
v5.10.141
v5.10.142
v5.10.143
v5.10.144
v5.10.145
v5.10.146
v5.10.147
v5.10.148
v5.10.149
v5.10.15
v5.10.150
v5.10.151
v5.10.152
v5.10.153
v5.10.154
v5.10.155
v5.10.156
v5.10.157
v5.10.158
v5.10.159
v5.10.16
v5.10.160
v5.10.161
v5.10.162
v5.10.163
v5.10.164
v5.10.165
v5.10.166
v5.10.167
v5.10.168
v5.10.169
v5.10.17
v5.10.170
v5.10.171
v5.10.172
v5.10.173
v5.10.174
v5.10.175
v5.10.176
v5.10.177
v5.10.178
v5.10.179
v5.10.18
v5.10.180
v5.10.181
v5.10.182
v5.10.183
v5.10.184
v5.10.185
v5.10.186
v5.10.187
v5.10.188
v5.10.189
v5.10.19
v5.10.190
v5.10.191
v5.10.192
v5.10.193
v5.10.194
v5.10.195
v5.10.196
v5.10.197
v5.10.198
v5.10.199
v5.10.2
v5.10.20
v5.10.200
v5.10.201
v5.10.202
v5.10.203
v5.10.204
v5.10.205
v5.10.206
v5.10.207
v5.10.208
v5.10.209
v5.10.21
v5.10.22
v5.10.23
v5.10.24
v5.10.25
v5.10.26
v5.10.27
v5.10.28
v5.10.29
v5.10.3
v5.10.30
v5.10.31
v5.10.32
v5.10.33
v5.10.34
v5.10.35
v5.10.36
v5.10.37
v5.10.38
v5.10.39
v5.10.4
v5.10.40
v5.10.41
v5.10.42
v5.10.43
v5.10.44
v5.10.45
v5.10.46
v5.10.47
v5.10.48
v5.10.49
v5.10.5
v5.10.50
v5.10.51
v5.10.52
v5.10.53
v5.10.54
v5.10.55
v5.10.56
v5.10.57
v5.10.58
v5.10.59
v5.10.6
v5.10.60
v5.10.61
v5.10.62
v5.10.63
v5.10.64
v5.10.65
v5.10.66
v5.10.67
v5.10.68
v5.10.69
v5.10.7
v5.10.70
v5.10.71
v5.10.72
v5.10.73
v5.10.74
v5.10.75
v5.10.76
v5.10.77
v5.10.78
v5.10.79
v5.10.8
v5.10.80
v5.10.81
v5.10.82
v5.10.83
v5.10.84
v5.10.85
v5.10.86
v5.10.87
v5.10.88
v5.10.89
v5.10.9
v5.10.90
v5.10.91
v5.10.92
v5.10.93
v5.10.94
v5.10.95
v5.10.96
v5.10.97
v5.10.98
v5.10.99
v5.11
v5.11-rc1
v5.11-rc2
v5.11-rc3
v5.11-rc4
v5.11-rc5
v5.11-rc6
v5.11-rc7
v5.12
v5.12-rc1
v5.12-rc1-dontuse
v5.12-rc2
v5.12-rc3
v5.12-rc4
v5.12-rc5
v5.12-rc6
v5.12-rc7
v5.12-rc8
v5.13
v5.13-rc1
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
v5.15.145
v5.15.146
v5.15.147
v5.15.148
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
v5.7
v5.7-rc2
v5.7-rc3
v5.7-rc4
v5.7-rc5
v5.7-rc6
v5.7-rc7
v5.8
v5.8-rc1
v5.8-rc2
v5.8-rc3
v5.8-rc4
v5.8-rc5
v5.8-rc6
v5.8-rc7
v5.9
v5.9-rc1
v5.9-rc2
v5.9-rc3
v5.9-rc4
v5.9-rc5
v5.9-rc6
v5.9-rc7
v5.9-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
v6.1.53
v6.1.54
v6.1.55
v6.1.56
v6.1.57
v6.1.58
v6.1.59
v6.1.6
v6.1.60
v6.1.61
v6.1.62
v6.1.63
v6.1.64
v6.1.65
v6.1.66
v6.1.67
v6.1.68
v6.1.69
v6.1.7
v6.1.70
v6.1.71
v6.1.72
v6.1.73
v6.1.74
v6.1.75
v6.1.76
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
v6.5
v6.5-rc1
v6.5-rc2
v6.5-rc3
v6.5-rc4
v6.5-rc5
v6.5-rc6
v6.5-rc7
v6.6
v6.6-rc1
v6.6-rc2
v6.6-rc3
v6.6-rc4
v6.6-rc5
v6.6-rc6
v6.6-rc7
v6.6.1
v6.6.10
v6.6.11
v6.6.12
v6.6.13
v6.6.14
v6.6.15
v6.6.2
v6.6.3
v6.6.4
v6.6.5
v6.6.6
v6.6.7
v6.6.8
v6.6.9
v6.7
v6.7-rc1
v6.7-rc2
v6.7-rc3
v6.7-rc4
v6.7-rc5
v6.7-rc6
v6.7-rc7
v6.7-rc8
v6.7.1
v6.7.2
v6.7.3

Database specific

vanir_signatures

[
    {
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@5b9ea86e662035a886ccb5c76d56793cba618827",
        "deprecated": false,
        "id": "CVE-2023-52618-0c3a4464",
        "target": {
            "file": "drivers/block/rnbd/rnbd-srv.c"
        },
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "273330646699201112440123503876456027403",
                "65542742487519124618334681437205032393",
                "324861093457860170078311844096904057350",
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                "266327908189811319400985145182073188446",
                "27249522987068765305915968661272998418",
                "204102069374967736240146855889026619209",
                "277468530507599044862950400118054711485",
                "144287318937591180959226178676720841913",
                "212932869080492948558330942555927579845",
                "81485238067882666490670004843000713276",
                "68374074080408453727350143800440497164",
                "127609721231203289631029913564289168863",
                "32221220453907125721865314686231347005",
                "234161195564956127159780872442163473482",
                "130526047687878395557535608912008536453",
                "7708785792748706102119562447211426549",
                "238977144048856442525082886383734206144"
            ]
        },
        "signature_type": "Line"
    },
    {
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@a2c6206f18104fba7f887bf4dbbfe4c41adc4339",
        "deprecated": false,
        "id": "CVE-2023-52618-2ac98da1",
        "target": {
            "function": "rnbd_srv_get_full_path",
            "file": "drivers/block/rnbd/rnbd-srv.c"
        },
        "digest": {
            "function_hash": "23893020271752186270194835550418736937",
            "length": 868.0
        },
        "signature_type": "Function"
    },
    {
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@5b9ea86e662035a886ccb5c76d56793cba618827",
        "deprecated": false,
        "id": "CVE-2023-52618-2cd49ee0",
        "target": {
            "function": "rnbd_srv_get_full_path",
            "file": "drivers/block/rnbd/rnbd-srv.c"
        },
        "digest": {
            "function_hash": "23893020271752186270194835550418736937",
            "length": 868.0
        },
        "signature_type": "Function"
    },
    {
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@f6abd5e17da33eba15df2bddc93413e76c2b55f7",
        "deprecated": false,
        "id": "CVE-2023-52618-6335da52",
        "target": {
            "file": "drivers/block/rnbd/rnbd-srv.c"
        },
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "273330646699201112440123503876456027403",
                "65542742487519124618334681437205032393",
                "324861093457860170078311844096904057350",
                "199832120436666020836970245363701954533",
                "337880496289701797506017679365828017265",
                "266327908189811319400985145182073188446",
                "27249522987068765305915968661272998418",
                "204102069374967736240146855889026619209",
                "277468530507599044862950400118054711485",
                "144287318937591180959226178676720841913",
                "212932869080492948558330942555927579845",
                "81485238067882666490670004843000713276",
                "68374074080408453727350143800440497164",
                "127609721231203289631029913564289168863",
                "32221220453907125721865314686231347005",
                "234161195564956127159780872442163473482",
                "130526047687878395557535608912008536453",
                "7708785792748706102119562447211426549",
                "238977144048856442525082886383734206144"
            ]
        },
        "signature_type": "Line"
    },
    {
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@9e4bf6a08d1e127bcc4bd72557f2dfafc6bc7f41",
        "deprecated": false,
        "id": "CVE-2023-52618-647082c9",
        "target": {
            "file": "drivers/block/rnbd/rnbd-srv.c"
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        "id": "CVE-2023-52618-6d5ff486",
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]

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.8.0
Fixed
5.10.210
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.149
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.77
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.16
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.7.4