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CVE-2018-5995

The pcpu_embed_first_chunk function in mm/percpu.c in the Linux kernel through 4.14.14 allows...

5.5 MediumFix available

The pcpu_embed_first_chunk function in mm/percpu.c in the Linux kernel through 4.14.14 allows local users to obtain sensitive address information by reading dmesg data from a "pages/cpu" printk call.

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

0.41%Down 0.5 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 5.5

The pcpu_embed_first_chunk function in mm/percpu.c in the Linux kernel through 4.14.14 allows local users to obtain sensitive address information by reading dmesg data from a "pages/cpu" printk call.

Record
CVE-2018-5995
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0
2.1 LowAV:L/AC:L/Au:N/C:P/I:N/A:N
Weakness
CWE-200
Updated
2026-11-02
CVE List No score

The pcpu_embed_first_chunk function in mm/percpu.c in the Linux kernel through 4.14.14 allows local users to obtain sensitive address information by reading dmesg data from a "pages/cpu" printk call.

Record
CVE-2018-5995
Updated
2026-11-02
EUVDEUVD-2018-17760 No score

The pcpu_embed_first_chunk function in mm/percpu.c in the Linux kernel through 4.14.14 allows local users to obtain sensitive address information by reading dmesg data from a "pages/cpu" printk call.

Record
EUVD-2018-17760
Updated
2026-11-03
GitHub AdvisoriesGHSA-8cxx-w4mr-45j5 5.5

The pcpu_embed_first_chunk function in mm/percpu.c in the Linux kernel through 4.14.14 allows...

The pcpu_embed_first_chunk function in mm/percpu.c in the Linux kernel through 4.14.14 allows local users to obtain sensitive address information by reading dmesg data from a "pages/cpu" printk call.

Record
GHSA-8cxx-w4mr-45j5
CVSS 3.0
5.5 MediumCVSS: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 5.5

The pcpu_embed_first_chunk function in mm/percpu.c in the Linux kernel through 4.14.14 allows local users to obtain sensitive address information by reading dmesg data from a "pages/cpu" printk call.

Record
CVE-2018-5995
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVDEBIAN-CVE-2018-5995 5.5

The pcpu_embed_first_chunk function in mm/percpu.c in the Linux kernel through 4.14.14 allows local users to obtain sensitive address information by reading dmesg data from a "pages/cpu" printk call.

Record
DEBIAN-CVE-2018-5995
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVUBUNTU-CVE-2018-5995 5.5

The pcpu_embed_first_chunk function in mm/percpu.c in the Linux kernel through 4.14.14 allows local users to obtain sensitive address information by reading dmesg data from a "pages/cpu" printk call.

Record
UBUNTU-CVE-2018-5995
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVUSN-5343-1 No score

linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities

Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the Linux kernel did not properly restrict access to the cgroups v1 release_agent feature. A local attacker could use this to gain administrative privileges. (CVE-2022-0492)

It was discovered that the aufs file system in the Linux kernel did not properly restrict mount namespaces, when mounted with the non-default allow_userns option set. A local attacker could use this to gain administrative privileges. (CVE-2016-2853)

It was discovered that the aufs file system in the Linux kernel did not properly maintain POSIX ACL xattr data, when mounted with the non-default allow_userns option. A local attacker could possibly use this to gain elevated privileges. (CVE-2016-2854)

It was discovered that the f2fs file system in the Linux kernel did not properly validate metadata in some situations. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-19449)

It was discovered that the XFS file system implementation in the Linux kernel did not properly validate meta data in some circumstances. An attacker could use this to construct a malicious XFS image that, when mounted, could cause a denial of service. (CVE-2020-12655)

Kiyin (尹亮) discovered that the NFC LLCP protocol implementation in the Linux kernel contained a reference counting error. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-25670)

Kiyin (尹亮) discovered that the NFC LLCP protocol implementation in the Linux kernel did not properly deallocate memory in certain error situations. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2020-25671, CVE-2020-25672)

Kiyin (尹亮) discovered that the NFC LLCP protocol implementation in the Linux kernel did not properly handle error conditions in some situations, leading to an infinite loop. A local attacker could use this to cause a denial of service. (CVE-2020-25673)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation incorrectly handled EAPOL frames from unauthenticated senders. A physically proximate attacker could inject malicious packets to cause a denial of service (system crash). (CVE-2020-26139)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation could reassemble mixed encrypted and plaintext fragments. A physically proximate attacker could possibly use this issue to inject packets or exfiltrate selected fragments. (CVE-2020-26147)

It was discovered that the BR/EDR pin-code pairing procedure in the Linux kernel was vulnerable to an impersonation attack. A physically proximate attacker could possibly use this to pair to a device without knowledge of the pin-code. (CVE-2020-26555)

It was discovered that the bluetooth subsystem in the Linux kernel did not properly perform access control. An authenticated attacker could possibly use this to expose sensitive information. (CVE-2020-26558, CVE-2021-0129)

It was discovered that the FUSE user space file system implementation in the Linux kernel did not properly handle bad inodes in some situations. A local attacker could possibly use this to cause a denial of service. (CVE-2020-36322)

It was discovered that the Infiniband RDMA userspace connection manager implementation in the Linux kernel contained a race condition leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possible execute arbitrary code. (CVE-2020-36385)

It was discovered that the DRM subsystem in the Linux kernel contained double-free vulnerabilities. A privileged attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-20292)

It was discovered that a race condition existed in the timer implementation in the Linux kernel. A privileged attacker could use…

Record
USN-5343-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
linux
Debian:12
before 4.15.4-1
4.15.4-1
linux
Debian:13
before 4.15.4-1
4.15.4-1
linux
Debian:14
before 4.15.4-1
4.15.4-1
linux
Debian:8
before 3.16.68-1, plus listed versions
3.16.36-13.16.36-1+deb8u13.16.36-1+deb8u1~bpo70+13.16.36-1+deb8u23.16.36-1+deb8u2~bpo70+1
Show 45 moreShow less
3.16.39-13.16.39-1+deb8u13.16.39-1+deb8u1~bpo70+13.16.39-1+deb8u1~bpo70+1+gcc4.43.16.39-1+deb8u23.16.39-1~bpo70+13.16.43-13.16.43-23.16.43-2+deb8u13.16.43-2+deb8u23.16.43-2+deb8u33.16.43-2+deb8u43.16.43-2+deb8u53.16.48-13.16.51-13.16.51-23.16.51-33.16.51-3+deb8u13.16.56-13.16.56-1+deb8u13.16.57-13.16.57-23.16.59-13.16.64-13.16.64-23.16.7-ckt11-13.16.7-ckt11-1+deb8u13.16.7-ckt11-1+deb8u23.16.7-ckt11-1+deb8u2~bpo70+13.16.7-ckt11-1+deb8u33.16.7-ckt11-1+deb8u3~bpo70+13.16.7-ckt11-1+deb8u43.16.7-ckt11-1+deb8u4~bpo70+13.16.7-ckt11-1+deb8u53.16.7-ckt11-1+deb8u63.16.7-ckt11-1+deb8u6~bpo70+13.16.7-ckt11-1~bpo70+13.16.7-ckt17-13.16.7-ckt20-13.16.7-ckt20-1+deb8u13.16.7-ckt20-1+deb8u23.16.7-ckt20-1+deb8u2~bpo70+13.16.7-ckt20-1+deb8u33.16.7-ckt20-1+deb8u3~bpo70+13.16.7-ckt20-1+deb8u4
3.16.68-1
linux-4.9
Debian:8
before 4.9.168-1+deb9u5~deb8u1, plus listed versions
4.9.110-1~deb8u14.9.144-3.1~deb8u14.9.168-1~deb8u1
4.9.168-1+deb9u5~deb8u1
linux
Debian:9
before 4.9.168-1+deb9u5, plus listed versions
4.9.107-14.9.110-14.9.110-24.9.110-34.9.110-3+deb9u1
Show 45 moreShow less
4.9.110-3+deb9u24.9.110-3+deb9u34.9.110-3+deb9u44.9.110-3+deb9u54.9.110-3+deb9u64.9.130-14.9.130-24.9.135-14.9.144-14.9.144-24.9.144-34.9.144-3.14.9.161-14.9.168-14.9.168-1+deb9u24.9.168-1+deb9u34.9.168-1+deb9u44.9.30-24.9.30-2+deb9u14.9.30-2+deb9u24.9.30-2+deb9u2~bpo8+14.9.30-2+deb9u34.9.30-2+deb9u44.9.30-2+deb9u54.9.30-2+deb9u5~bpo8+14.9.47-14.9.51-14.9.51-1~bpo8+14.9.65-14.9.65-24.9.65-34.9.65-3+deb9u14.9.65-3+deb9u1~bpo8+14.9.65-3+deb9u24.9.65-3+deb9u2~bpo8+14.9.65-3~bpo8+14.9.80-14.9.80-24.9.82-1+deb9u24.9.82-1+deb9u34.9.82-1+deb9u3~bpo8+14.9.88-14.9.88-1+deb9u14.9.88-1+deb9u1~bpo8+14.9.88-1~bpo8+1
4.9.168-1+deb9u5
linux-aws
Ubuntu:Pro:14.04:LTS
before 4.4.0-1102.107, 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 less
4.4.0-1010.104.4.0-1011.114.4.0-1012.124.4.0-1014.144.4.0-1016.164.4.0-1017.174.4.0-1019.194.4.0-1022.224.4.0-1023.234.4.0-1024.254.4.0-1025.264.4.0-1027.304.4.0-1028.314.4.0-1029.324.4.0-1031.344.4.0-1032.354.4.0-1034.374.4.0-1036.394.4.0-1037.404.4.0-1038.414.4.0-1039.424.4.0-1040.434.4.0-1042.454.4.0-1044.474.4.0-1045.484.4.0-1046.504.4.0-1048.524.4.0-1050.544.4.0-1052.564.4.0-1054.584.4.0-1055.594.4.0-1056.604.4.0-1058.624.4.0-1059.634.4.0-1060.644.4.0-1061.654.4.0-1062.664.4.0-1064.684.4.0-1065.694.4.0-1066.704.4.0-1067.714.4.0-1073.774.4.0-1074.784.4.0-1075.794.4.0-1076.80
4.4.0-1102.107
linux-lts-xenial
Ubuntu:Pro:14.04:LTS
before 4.4.0-222.255~14.04.1, 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 less
4.4.0-22.39~14.04.14.4.0-22.40~14.04.14.4.0-24.43~14.04.14.4.0-28.47~14.04.14.4.0-31.50~14.04.14.4.0-34.53~14.04.14.4.0-36.55~14.04.14.4.0-38.57~14.04.14.4.0-42.62~14.04.14.4.0-45.66~14.04.14.4.0-47.68~14.04.14.4.0-51.72~14.04.14.4.0-53.74~14.04.14.4.0-57.78~14.04.14.4.0-59.80~14.04.14.4.0-62.83~14.04.14.4.0-63.84~14.04.24.4.0-64.85~14.04.14.4.0-66.87~14.04.14.4.0-67.88~14.04.14.4.0-70.91~14.04.14.4.0-71.92~14.04.14.4.0-72.93~14.04.14.4.0-75.96~14.04.14.4.0-78.99~14.04.24.4.0-79.100~14.04.14.4.0-81.104~14.04.14.4.0-83.106~14.04.14.4.0-87.110~14.04.14.4.0-89.112~14.04.14.4.0-91.114~14.04.14.4.0-92.115~14.04.14.4.0-93.116~14.04.14.4.0-96.119~14.04.14.4.0-97.120~14.04.14.4.0-98.121~14.04.14.4.0-101.124~14.04.14.4.0-103.126~14.04.14.4.0-104.127~14.04.14.4.0-108.131~14.04.14.4.0-109.132~14.04.14.4.0-111.134~14.04.14.4.0-112.135~14.04.14.4.0-116.140~14.04.14.4.0-119.143~14.04.1
4.4.0-222.255~14.04.1
linux
Ubuntu: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 less
3.12.0-3.93.12.0-4.103.12.0-4.123.12.0-5.133.12.0-7.153.13.0-1.163.13.0-2.173.13.0-3.183.13.0-4.193.13.0-5.203.13.0-6.233.13.0-7.253.13.0-7.263.13.0-8.273.13.0-8.283.13.0-10.303.13.0-11.313.13.0-12.323.13.0-13.333.13.0-14.343.13.0-15.353.13.0-16.363.13.0-17.373.13.0-18.383.13.0-19.393.13.0-19.403.13.0-20.423.13.0-21.433.13.0-22.443.13.0-23.453.13.0-24.463.13.0-24.473.13.0-27.503.13.0-29.533.13.0-30.543.13.0-30.553.13.0-32.573.13.0-33.583.13.0-34.603.13.0-35.623.13.0-36.633.13.0-37.643.13.0-39.663.13.0-40.693.13.0-41.70
None known
linux-azure
Ubuntu: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 less
4.11.0-1016.164.13.0-1005.74.13.0-1006.84.13.0-1007.94.13.0-1009.124.13.0-1011.144.13.0-1012.154.13.0-1014.174.13.0-1016.194.13.0-1018.21
4.15.0-1013.13~16.04.2
Show 6 moreShow less
Affected packages
PackageAffectedFixed
linux-gcp
Ubuntu: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 less
4.13.0-1002.54.13.0-1006.94.13.0-1007.104.13.0-1008.114.13.0-1011.154.13.0-1012.164.13.0-1013.174.13.0-1015.194.13.0-1017.214.13.0-1019.23
4.15.0-1014.14~16.04.1
linux-hwe
Ubuntu: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 less
4.8.0-45.48~16.04.14.8.0-46.49~16.04.14.8.0-49.52~16.04.14.8.0-51.54~16.04.14.8.0-52.55~16.04.14.8.0-53.56~16.04.14.8.0-54.57~16.04.14.8.0-56.61~16.04.14.8.0-58.63~16.04.14.10.0-27.30~16.04.24.10.0-28.32~16.04.24.10.0-30.34~16.04.14.10.0-32.36~16.04.14.10.0-33.37~16.04.14.10.0-35.39~16.04.14.10.0-37.41~16.04.14.10.0-38.42~16.04.14.10.0-40.44~16.04.14.10.0-42.46~16.04.14.13.0-26.29~16.04.24.13.0-31.34~16.04.14.13.0-32.35~16.04.14.13.0-36.40~16.04.14.13.0-37.42~16.04.14.13.0-38.43~16.04.14.13.0-39.44~16.04.14.13.0-41.46~16.04.14.13.0-43.48~16.04.14.13.0-45.50~16.04.1
4.15.0-24.26~16.04.1
linux
Ubuntu: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 less
4.3.0-5.164.3.0-6.174.3.0-7.184.4.0-2.164.4.0-4.194.4.0-6.214.4.0-7.224.4.0-8.234.4.0-9.244.4.0-10.254.4.0-11.264.4.0-12.284.4.0-13.294.4.0-14.304.4.0-15.314.4.0-16.324.4.0-17.334.4.0-18.344.4.0-21.374.4.0-22.394.4.0-22.404.4.0-24.434.4.0-28.474.4.0-31.504.4.0-34.534.4.0-36.554.4.0-38.574.4.0-42.624.4.0-43.634.4.0-45.664.4.0-47.684.4.0-51.724.4.0-53.744.4.0-57.784.4.0-59.804.4.0-62.834.4.0-63.844.4.0-64.854.4.0-65.864.4.0-66.874.4.0-67.884.4.0-70.914.4.0-71.924.4.0-72.934.4.0-75.96
4.4.0-222.255
linux-aws
Ubuntu: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 less
4.4.0-1011.204.4.0-1012.214.4.0-1013.224.4.0-1016.254.4.0-1017.264.4.0-1018.274.4.0-1020.294.4.0-1022.314.4.0-1026.354.4.0-1028.374.4.0-1030.394.4.0-1031.404.4.0-1032.414.4.0-1035.444.4.0-1037.464.4.0-1038.474.4.0-1039.484.4.0-1041.504.4.0-1043.524.4.0-1044.534.4.0-1047.564.4.0-1048.574.4.0-1049.584.4.0-1050.594.4.0-1052.614.4.0-1054.634.4.0-1055.644.4.0-1057.664.4.0-1060.694.4.0-1061.704.4.0-1062.714.4.0-1063.724.4.0-1065.754.4.0-1066.764.4.0-1067.774.4.0-1069.794.4.0-1070.804.4.0-1072.824.4.0-1073.834.4.0-1074.844.4.0-1075.854.4.0-1077.874.4.0-1079.894.4.0-1081.914.4.0-1083.93
4.4.0-1138.152
linux-kvm
Ubuntu: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 less
4.4.0-1012.174.4.0-1013.184.4.0-1015.204.4.0-1017.224.4.0-1019.244.4.0-1020.254.4.0-1021.264.4.0-1023.284.4.0-1026.314.4.0-1027.324.4.0-1029.344.4.0-1031.374.4.0-1032.384.4.0-1033.394.4.0-1035.414.4.0-1036.424.4.0-1037.434.4.0-1038.444.4.0-1039.454.4.0-1040.464.4.0-1041.474.4.0-1043.494.4.0-1044.504.4.0-1046.524.4.0-1047.534.4.0-1048.554.4.0-1051.584.4.0-1052.594.4.0-1054.614.4.0-1056.634.4.0-1058.654.4.0-1059.664.4.0-1060.674.4.0-1062.694.4.0-1063.704.4.0-1064.714.4.0-1065.724.4.0-1066.734.4.0-1068.754.4.0-1069.764.4.0-1070.774.4.0-1071.784.4.0-1075.824.4.0-1076.834.4.0-1077.84
4.4.0-1103.112
linux-snapdragon
Ubuntu: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

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-5995 is a medium vulnerability (CVSS 5.5) in Linux Kernel, published August 7, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.41%, the 35th percentile. Fixed in linux 4.15.4-1.

References

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This page doesn't list everything

Left out here: 390 versions and the rest of 1 source description. The JSON record has them.

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