CVE-2018-1120
MEDIUM 5.3EPSS 7.2%
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).
- Affected
- [UNKNOWN] · kernel
- CVSS v3.0 NVD
- 5.3 MEDIUM
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H - CVSS v3.0 REDHAT
- 2.8 LOW
CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L - CVSS v2.0 NVD
- 3.5 LOW
AV:N/AC:M/Au:S/C:N/I:N/A:P - EPSS
- 7.20% chance of exploitation in the next 30 days, 94th percentile
- Published
- 2018-06-20
- Updated
- 2024-08-05
Proof-of-concept exploits (1)
ExploitDB entries (1)
Security advisories
- http://www.securityfocus.com/bid/104229
- https://access.redhat.com/errata/RHSA-2018:2948
- https://access.redhat.com/errata/RHSA-2018:3083
- https://access.redhat.com/errata/RHSA-2018:3096
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1120
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7f7ccc2ccc2…
- https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html
- https://security.gentoo.org/glsa/201805-14
- https://usn.ubuntu.com/3752-1
- https://usn.ubuntu.com/3752-2
- https://usn.ubuntu.com/3752-3
- https://usn.ubuntu.com/3910-1
- https://usn.ubuntu.com/3910-2