CVE-2018-6954
- Source
- https://cve.org/CVERecord?id=CVE-2018-6954
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-6954.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2018-6954
- Downstream
- Related
- Published
- 2018-02-13T20:29:00.547Z
- Modified
- 2026-03-20T11:26:13.207111Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
systemd-tmpfiles in systemd through 237 mishandles symlinks present in non-terminal path components, which allows local users to obtain ownership of arbitrary files via vectors involving creation of a directory and a file under that directory, and later replacing that directory with a symlink. This occurs even if the fs.protected_symlinks sysctl is turned on.
- References
-
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- https://usn.ubuntu.com/3816-1/
- https://usn.ubuntu.com/3816-2/
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00062.html
- https://github.com/systemd/systemd/issues/7986
Affected packages
Git / github.com/systemd/systemd
Affected versions
Other
001
002
003
004
005
006
007
008
009
010
011
012
013
014
015
016
017
018
019
020
021
022
023
024
025
026
027
028
029
030
031
032
033
034
035
036
037
038
039
040
042
043
044
045
046
047
048
049
050
051
052
053
054
055
056
057
058
059
060
061
062
064
174
175
176
177
178
179
180
181
182
v1
v10
v11
v12
v13
v14
v15
v16
v17
v18
v183
v184
v185
v186
v187
v188
v189
v19
v190
v191
v192
v193
v194
v195
v196
v197
v198
v199
v2
v20
v200
v201
v202
v203
v204
v205
v206
v207
v208
v209
v21
v210
v211
v212
v213
v214
v215
v216
v217
v218
v219
v22
v220
v221
v222
v223
v224
v225
v226
v227
v228
v229
v23
v230
v231
v232
v233
v234
v235
v236
v237
v24
v25
v26
v27
v28
v29
v3
v30
v31
v32
v33
v34
v35
v36
v37
v38
v39
v4
v40
v41
v42
v43
v44
v5
v6
v7
v8
v9
Database specific
source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-6954.json"
unresolved_ranges
[
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "16.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "18.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "18.10"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "42.3"
}
]
}
]