CVE-2018-7273
In the Linux kernel through 4.15.4, the floppy driver reveals the addresses of kernel functions...
In the Linux kernel through 4.15.4, the floppy driver reveals the addresses of kernel functions and global variables using printk calls within the function show_floppy in drivers/block/floppy.c. An attacker can read this information from dmesg and use the addresses to find the locations of kernel code and data and bypass kernel security protections such as KASLR.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
In the Linux kernel through 4.15.4, the floppy driver reveals the addresses of kernel functions and global variables using printk calls within the function show_floppy in drivers/block/floppy.c. An attacker can read this information from dmesg and use the addresses to find the locations of kernel code and data and bypass kernel security protections such as KASLR.
- Record
CVE-2018-7273- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 4.9 Medium
AV:L/AC:L/Au:N/C:C/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
CVE List No score
In the Linux kernel through 4.15.4, the floppy driver reveals the addresses of kernel functions and global variables using printk calls within the function show_floppy in drivers/block/floppy.c. An attacker can read this information from dmesg and use the addresses to find the locations of kernel code and data and bypass kernel security protections such as KASLR.
- Record
CVE-2018-7273- Updated
- 2026-11-02
EUVDEUVD-2018-19008 No score
In the Linux kernel through 4.15.4, the floppy driver reveals the addresses of kernel functions and global variables using printk calls within the function show_floppy in drivers/block/floppy.c. An attacker can read this information from dmesg and use the addresses to find the locations of kernel code and data and bypass kernel security protections such as KASLR.
- Record
EUVD-2018-19008- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-749m-f23f-j6rq
In the Linux kernel through 4.15.4, the floppy driver reveals the addresses of kernel functions...
In the Linux kernel through 4.15.4, the floppy driver reveals the addresses of kernel functions and global variables using printk calls within the function show_floppy in drivers/block/floppy.c. An attacker can read this information from dmesg and use the addresses to find the locations of kernel code and data and bypass kernel security protections such as KASLR.
- Record
GHSA-749m-f23f-j6rq- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
OSV
In the Linux kernel through 4.15.4, the floppy driver reveals the addresses of kernel functions and global variables using printk calls within the function show_floppy in drivers/block/floppy.c. An attacker can read this information from dmesg and use the addresses to find the locations of kernel code and data and bypass kernel security protections such as KASLR.
- Record
CVE-2018-7273- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2018-7273
In the Linux kernel through 4.15.4, the floppy driver reveals the addresses of kernel functions and global variables using printk calls within the function show_floppy in drivers/block/floppy.c. An attacker can read this information from dmesg and use the addresses to find the locations of kernel code and data and bypass kernel security protections such as KASLR.
- Record
DEBIAN-CVE-2018-7273- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2018-7273
In the Linux kernel through 4.15.4, the floppy driver reveals the addresses of kernel functions and global variables using printk calls within the function show_floppy in drivers/block/floppy.c. An attacker can read this information from dmesg and use the addresses to find the locations of kernel code and data and bypass kernel security protections such as KASLR.
- Record
UBUNTU-CVE-2018-7273- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-06
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
linuxDebian:12 |
before 4.15.4-1 | 4.15.4-1 |
linuxDebian:13 |
before 4.15.4-1 | 4.15.4-1 |
linuxDebian:14 |
before 4.15.4-1 | 4.15.4-1 |
linuxUbuntu:Pro:14.04:LTS |
All versions, plus listed versions 3.11.0-12.193.12.0-1.33.12.0-2.53.12.0-2.73.12.0-3.8 Show 45 moreShow less3.12.0-3.93.12.0-4.103.12.0-4.123.12.0-5.133.12.0-7.153.13.0-1.163.13.0-2.173.13.0-3.183.13.0-4.193.13.0-5.203.13.0-6.233.13.0-7.253.13.0-7.263.13.0-8.273.13.0-8.283.13.0-10.303.13.0-11.313.13.0-12.323.13.0-13.333.13.0-14.343.13.0-15.353.13.0-16.363.13.0-17.373.13.0-18.383.13.0-19.393.13.0-19.403.13.0-20.423.13.0-21.433.13.0-22.443.13.0-23.453.13.0-24.463.13.0-24.473.13.0-27.503.13.0-29.533.13.0-30.543.13.0-30.553.13.0-32.573.13.0-33.583.13.0-34.603.13.0-35.623.13.0-36.633.13.0-37.643.13.0-39.663.13.0-40.693.13.0-41.70 |
None known |
linux-awsUbuntu:Pro:14.04:LTS |
All versions, plus listed versions 4.4.0-1002.24.4.0-1003.34.4.0-1005.54.4.0-1006.64.4.0-1009.9 Show 45 moreShow less4.4.0-1010.104.4.0-1011.114.4.0-1012.124.4.0-1014.144.4.0-1016.164.4.0-1017.174.4.0-1019.194.4.0-1022.224.4.0-1023.234.4.0-1024.254.4.0-1025.264.4.0-1027.304.4.0-1028.314.4.0-1029.324.4.0-1031.344.4.0-1032.354.4.0-1034.374.4.0-1036.394.4.0-1037.404.4.0-1038.414.4.0-1039.424.4.0-1040.434.4.0-1042.454.4.0-1044.474.4.0-1045.484.4.0-1046.504.4.0-1048.524.4.0-1050.544.4.0-1052.564.4.0-1054.584.4.0-1055.594.4.0-1056.604.4.0-1058.624.4.0-1059.634.4.0-1060.644.4.0-1061.654.4.0-1062.664.4.0-1064.684.4.0-1065.694.4.0-1066.704.4.0-1067.714.4.0-1073.774.4.0-1074.784.4.0-1075.794.4.0-1076.80 |
None known |
linux-lts-xenialUbuntu:Pro:14.04:LTS |
All versions, plus listed versions 4.4.0-13.29~14.04.14.4.0-14.30~14.04.24.4.0-15.31~14.04.14.4.0-18.34~14.04.14.4.0-21.37~14.04.1 Show 45 moreShow less4.4.0-22.39~14.04.14.4.0-22.40~14.04.14.4.0-24.43~14.04.14.4.0-28.47~14.04.14.4.0-31.50~14.04.14.4.0-34.53~14.04.14.4.0-36.55~14.04.14.4.0-38.57~14.04.14.4.0-42.62~14.04.14.4.0-45.66~14.04.14.4.0-47.68~14.04.14.4.0-51.72~14.04.14.4.0-53.74~14.04.14.4.0-57.78~14.04.14.4.0-59.80~14.04.14.4.0-62.83~14.04.14.4.0-63.84~14.04.24.4.0-64.85~14.04.14.4.0-66.87~14.04.14.4.0-67.88~14.04.14.4.0-70.91~14.04.14.4.0-71.92~14.04.14.4.0-72.93~14.04.14.4.0-75.96~14.04.14.4.0-78.99~14.04.24.4.0-79.100~14.04.14.4.0-81.104~14.04.14.4.0-83.106~14.04.14.4.0-87.110~14.04.14.4.0-89.112~14.04.14.4.0-91.114~14.04.14.4.0-92.115~14.04.14.4.0-93.116~14.04.14.4.0-96.119~14.04.14.4.0-97.120~14.04.14.4.0-98.121~14.04.14.4.0-101.124~14.04.14.4.0-103.126~14.04.14.4.0-104.127~14.04.14.4.0-108.131~14.04.14.4.0-109.132~14.04.14.4.0-111.134~14.04.14.4.0-112.135~14.04.14.4.0-116.140~14.04.14.4.0-119.143~14.04.1 |
None known |
linux-azureUbuntu:16.04:LTS |
before 4.15.0-1013.13~16.04.2, plus listed versions 4.11.0-1009.94.11.0-1011.114.11.0-1013.134.11.0-1014.144.11.0-1015.15 Show 10 moreShow less4.11.0-1016.164.13.0-1005.74.13.0-1006.84.13.0-1007.94.13.0-1009.124.13.0-1011.144.13.0-1012.154.13.0-1014.174.13.0-1016.194.13.0-1018.21 |
4.15.0-1013.13~16.04.2 |
linux-gcpUbuntu:16.04:LTS |
before 4.15.0-1014.14~16.04.1, plus listed versions 4.10.0-1004.44.10.0-1006.64.10.0-1007.74.10.0-1008.84.10.0-1009.9 Show 10 moreShow less4.13.0-1002.54.13.0-1006.94.13.0-1007.104.13.0-1008.114.13.0-1011.154.13.0-1012.164.13.0-1013.174.13.0-1015.194.13.0-1017.214.13.0-1019.23 |
4.15.0-1014.14~16.04.1 |
linux-hweUbuntu:16.04:LTS |
before 4.15.0-24.26~16.04.1, plus listed versions 4.8.0-36.36~16.04.14.8.0-39.42~16.04.14.8.0-41.44~16.04.14.8.0-42.45~16.04.14.8.0-44.47~16.04.1 Show 29 moreShow less4.8.0-45.48~16.04.14.8.0-46.49~16.04.14.8.0-49.52~16.04.14.8.0-51.54~16.04.14.8.0-52.55~16.04.14.8.0-53.56~16.04.14.8.0-54.57~16.04.14.8.0-56.61~16.04.14.8.0-58.63~16.04.14.10.0-27.30~16.04.24.10.0-28.32~16.04.24.10.0-30.34~16.04.14.10.0-32.36~16.04.14.10.0-33.37~16.04.14.10.0-35.39~16.04.14.10.0-37.41~16.04.14.10.0-38.42~16.04.14.10.0-40.44~16.04.14.10.0-42.46~16.04.14.13.0-26.29~16.04.24.13.0-31.34~16.04.14.13.0-32.35~16.04.14.13.0-36.40~16.04.14.13.0-37.42~16.04.14.13.0-38.43~16.04.14.13.0-39.44~16.04.14.13.0-41.46~16.04.14.13.0-43.48~16.04.14.13.0-45.50~16.04.1 |
4.15.0-24.26~16.04.1 |
linuxUbuntu:Pro:16.04:LTS |
before 4.4.0-222.255, plus listed versions 4.2.0-16.194.2.0-17.214.2.0-19.234.3.0-1.104.3.0-2.11 Show 45 moreShow less4.3.0-5.164.3.0-6.174.3.0-7.184.4.0-2.164.4.0-4.194.4.0-6.214.4.0-7.224.4.0-8.234.4.0-9.244.4.0-10.254.4.0-11.264.4.0-12.284.4.0-13.294.4.0-14.304.4.0-15.314.4.0-16.324.4.0-17.334.4.0-18.344.4.0-21.374.4.0-22.394.4.0-22.404.4.0-24.434.4.0-28.474.4.0-31.504.4.0-34.534.4.0-36.554.4.0-38.574.4.0-42.624.4.0-43.634.4.0-45.664.4.0-47.684.4.0-51.724.4.0-53.744.4.0-57.784.4.0-59.804.4.0-62.834.4.0-63.844.4.0-64.854.4.0-65.864.4.0-66.874.4.0-67.884.4.0-70.914.4.0-71.924.4.0-72.934.4.0-75.96 |
4.4.0-222.255 |
linux-awsUbuntu:Pro:16.04:LTS |
before 4.4.0-1138.152, plus listed versions 4.4.0-1001.104.4.0-1003.124.4.0-1004.134.4.0-1007.164.4.0-1009.18 Show 45 moreShow less4.4.0-1011.204.4.0-1012.214.4.0-1013.224.4.0-1016.254.4.0-1017.264.4.0-1018.274.4.0-1020.294.4.0-1022.314.4.0-1026.354.4.0-1028.374.4.0-1030.394.4.0-1031.404.4.0-1032.414.4.0-1035.444.4.0-1037.464.4.0-1038.474.4.0-1039.484.4.0-1041.504.4.0-1043.524.4.0-1044.534.4.0-1047.564.4.0-1048.574.4.0-1049.584.4.0-1050.594.4.0-1052.614.4.0-1054.634.4.0-1055.644.4.0-1057.664.4.0-1060.694.4.0-1061.704.4.0-1062.714.4.0-1063.724.4.0-1065.754.4.0-1066.764.4.0-1067.774.4.0-1069.794.4.0-1070.804.4.0-1072.824.4.0-1073.834.4.0-1074.844.4.0-1075.854.4.0-1077.874.4.0-1079.894.4.0-1081.914.4.0-1083.93 |
4.4.0-1138.152 |
linux-kvmUbuntu:Pro:16.04:LTS |
before 4.4.0-1103.112, plus listed versions 4.4.0-1004.94.4.0-1007.124.4.0-1008.134.4.0-1009.144.4.0-1010.15 Show 45 moreShow less4.4.0-1012.174.4.0-1013.184.4.0-1015.204.4.0-1017.224.4.0-1019.244.4.0-1020.254.4.0-1021.264.4.0-1023.284.4.0-1026.314.4.0-1027.324.4.0-1029.344.4.0-1031.374.4.0-1032.384.4.0-1033.394.4.0-1035.414.4.0-1036.424.4.0-1037.434.4.0-1038.444.4.0-1039.454.4.0-1040.464.4.0-1041.474.4.0-1043.494.4.0-1044.504.4.0-1046.524.4.0-1047.534.4.0-1048.554.4.0-1051.584.4.0-1052.594.4.0-1054.614.4.0-1056.634.4.0-1058.654.4.0-1059.664.4.0-1060.674.4.0-1062.694.4.0-1063.704.4.0-1064.714.4.0-1065.724.4.0-1066.734.4.0-1068.754.4.0-1069.764.4.0-1070.774.4.0-1071.784.4.0-1075.824.4.0-1076.834.4.0-1077.84 |
4.4.0-1103.112 |
linux-snapdragonUbuntu:18.04:LTS |
before 4.15.0-1053.57, plus listed versions 4.4.0-1077.824.4.0-1078.834.4.0-1079.844.4.0-1081.86 |
4.15.0-1053.57 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Linux Kernel < 4.15.4 - 'show_floppy' KASLR Address Leak | 2018-03-22 |
| PoC in GitHub | jedai47/CVE-2018-7273 | 2023-04-07 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-7273 is a medium vulnerability (CVSS 5.5) in Linux Kernel, published February 21, 2018. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.76%, the 78th percentile. Fixed in linux 4.15.4-1.
References
Left out here: 491 versions. The JSON record has them.