CVE-2023-52440
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-52440
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52440.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-52440
- Downstream
- Published
- 2024-02-21T07:21:00Z
- Modified
- 2025-10-21T14:41:42.148448Z
- Summary
- ksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix slub overflow in ksmbddecodentlmsspauthblob()
If authblob->SessionKey.Length is bigger than session key size(CIFSKEYSIZE), slub overflow can happen in key exchange codes. cifsarc4crypt copy to session key array from SessionKey from client.
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/30fd6521b2fbd9b767e438e31945e5ea3e3a2fba
- https://git.kernel.org/stable/c/4b081ce0d830b684fdf967abc3696d1261387254
- https://git.kernel.org/stable/c/7f1d6cb0eb6af3a8088dc24b7ddee9a9711538c4
- https://git.kernel.org/stable/c/bd554ed4fdc3d38404a1c43d428432577573e809
- https://git.kernel.org/stable/c/ecd7e1c562cb08e41957fcd4b0e404de5ab38e20
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
-
Introduced0626e6641f6b467447c81dd7678a69c66f7746cfFixedbd554ed4fdc3d38404a1c43d428432577573e809
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0626e6641f6b467447c81dd7678a69c66f7746cfFixed30fd6521b2fbd9b767e438e31945e5ea3e3a2fba
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0626e6641f6b467447c81dd7678a69c66f7746cfFixed7f1d6cb0eb6af3a8088dc24b7ddee9a9711538c4
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0626e6641f6b467447c81dd7678a69c66f7746cfFixedecd7e1c562cb08e41957fcd4b0e404de5ab38e20
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0626e6641f6b467447c81dd7678a69c66f7746cfFixed4b081ce0d830b684fdf967abc3696d1261387254
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
v6.1.6
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
v6.4.2
v6.4.3
v6.4.4
v6.4.5
v6.4.6
v6.4.7
v6.4.8
v6.4.9
v6.5
v6.5-rc1
v6.5-rc2
v6.5-rc3
v6.5-rc4
v6.5-rc5
v6.5-rc6
v6.5-rc7
v6.5.1
Database specific
vanir_signatures
[
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@7f1d6cb0eb6af3a8088dc24b7ddee9a9711538c4",
"target": {
"function": "ksmbd_decode_ntlmssp_auth_blob",
"file": "fs/smb/server/auth.c"
},
"digest": {
"function_hash": "259104588973119408851970349259310254599",
"length": 1661.0
},
"deprecated": false,
"id": "CVE-2023-52440-008d1194",
"signature_version": "v1",
"signature_type": "Function"
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@7f1d6cb0eb6af3a8088dc24b7ddee9a9711538c4",
"target": {
"file": "fs/smb/server/auth.c"
},
"digest": {
"line_hashes": [
"251406686089145232965878494299903029945",
"28322161599429104013922309979157720534",
"64368445861305142492554626759117400657"
],
"threshold": 0.9
},
"deprecated": false,
"id": "CVE-2023-52440-0aa23ae6",
"signature_version": "v1",
"signature_type": "Line"
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@30fd6521b2fbd9b767e438e31945e5ea3e3a2fba",
"target": {
"file": "fs/smb/server/auth.c"
},
"digest": {
"line_hashes": [
"251406686089145232965878494299903029945",
"28322161599429104013922309979157720534",
"64368445861305142492554626759117400657"
],
"threshold": 0.9
},
"deprecated": false,
"id": "CVE-2023-52440-29598a5e",
"signature_version": "v1",
"signature_type": "Line"
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@bd554ed4fdc3d38404a1c43d428432577573e809",
"target": {
"file": "fs/ksmbd/auth.c"
},
"digest": {
"line_hashes": [
"251406686089145232965878494299903029945",
"28322161599429104013922309979157720534",
"64368445861305142492554626759117400657"
],
"threshold": 0.9
},
"deprecated": false,
"id": "CVE-2023-52440-300e8d27",
"signature_version": "v1",
"signature_type": "Line"
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ecd7e1c562cb08e41957fcd4b0e404de5ab38e20",
"target": {
"file": "fs/smb/server/auth.c"
},
"digest": {
"line_hashes": [
"251406686089145232965878494299903029945",
"28322161599429104013922309979157720534",
"64368445861305142492554626759117400657"
],
"threshold": 0.9
},
"deprecated": false,
"id": "CVE-2023-52440-47065012",
"signature_version": "v1",
"signature_type": "Line"
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ecd7e1c562cb08e41957fcd4b0e404de5ab38e20",
"target": {
"function": "ksmbd_decode_ntlmssp_auth_blob",
"file": "fs/smb/server/auth.c"
},
"digest": {
"function_hash": "259104588973119408851970349259310254599",
"length": 1661.0
},
"deprecated": false,
"id": "CVE-2023-52440-85941bf1",
"signature_version": "v1",
"signature_type": "Function"
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@4b081ce0d830b684fdf967abc3696d1261387254",
"target": {
"function": "ksmbd_decode_ntlmssp_auth_blob",
"file": "fs/smb/server/auth.c"
},
"digest": {
"function_hash": "259104588973119408851970349259310254599",
"length": 1661.0
},
"deprecated": false,
"id": "CVE-2023-52440-9a87dd94",
"signature_version": "v1",
"signature_type": "Function"
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@bd554ed4fdc3d38404a1c43d428432577573e809",
"target": {
"function": "ksmbd_decode_ntlmssp_auth_blob",
"file": "fs/ksmbd/auth.c"
},
"digest": {
"function_hash": "259104588973119408851970349259310254599",
"length": 1661.0
},
"deprecated": false,
"id": "CVE-2023-52440-cdecf3f6",
"signature_version": "v1",
"signature_type": "Function"
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@30fd6521b2fbd9b767e438e31945e5ea3e3a2fba",
"target": {
"function": "ksmbd_decode_ntlmssp_auth_blob",
"file": "fs/smb/server/auth.c"
},
"digest": {
"function_hash": "259104588973119408851970349259310254599",
"length": 1661.0
},
"deprecated": false,
"id": "CVE-2023-52440-f2e95566",
"signature_version": "v1",
"signature_type": "Function"
},
{
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@4b081ce0d830b684fdf967abc3696d1261387254",
"target": {
"file": "fs/smb/server/auth.c"
},
"digest": {
"line_hashes": [
"251406686089145232965878494299903029945",
"28322161599429104013922309979157720534",
"64368445861305142492554626759117400657"
],
"threshold": 0.9
},
"deprecated": false,
"id": "CVE-2023-52440-fcd3df3f",
"signature_version": "v1",
"signature_type": "Line"
}
]