CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
40.5%
A flaw was found affecting the Linux kernel before version 4.17. By
mmap()ing a FUSE-backed file onto a process’s memory containing command
line arguments (or environment strings), an attacker can cause utilities
from psutils or procps (such as ps, w) or any other program which makes a
read() call to the /proc/<pid>/cmdline (or /proc/<pid>/environ) files to
block indefinitely (denial of service) or for some controlled time (as a
synchronization primitive for other attacks).
Author | Note |
---|---|
mdeslaur | this needs to be fixed in the kernel, not in procps |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | < 4.15.0-33.36 | UNKNOWN |
ubuntu | 16.04 | noarch | linux | < 4.4.0-143.169 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1020.20 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-aws | < 4.4.0-1039.42 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws | < 4.4.0-1077.87 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-azure | < 4.15.0-1022.23 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-azure | < 4.15.0-1022.22~16.04.1 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-azure-edge | < 4.15.0-1022.23 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-azure-edge | < 4.15.0-1022.22~16.04.1 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-gcp | < 4.15.0-1018.19 | UNKNOWN |
www.openwall.com/lists/oss-security/2018/05/17/1
launchpad.net/bugs/cve/CVE-2018-1120
nvd.nist.gov/vuln/detail/CVE-2018-1120
security-tracker.debian.org/tracker/CVE-2018-1120
ubuntu.com/security/notices/USN-3752-1
ubuntu.com/security/notices/USN-3752-2
ubuntu.com/security/notices/USN-3752-3
ubuntu.com/security/notices/USN-3910-1
ubuntu.com/security/notices/USN-3910-2
www.cve.org/CVERecord?id=CVE-2018-1120
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
40.5%