CVE-2018-1120
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…
- 2.8LowCVSS base score
- 7.1%Exploitation in 30 daysEPSS · top 5.7% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
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).
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it. A reference of the record is tagged as an exploit.
Show the exploits2
Exploit-DB1 entry
- Procps-ng - Multiple Vulnerabilities (Exploit-DB entry) (opens in a new tab)
EDB-ID 44806local, linuxpublished 30 May 2018Not verified
References tagged exploit1 reference
- 44806 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By redhat
- 7 months later
· 7 months later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.0 | Low2.8 | CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L |
| NVDNVD · Modified | 3.0 | Medium5.3 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 7.1% · top 5.7% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.8.
Affected products
References
References15
- USN-3752-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2018:3083 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 104229 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- USN-3752-3 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- GLSA-201805-14 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- 44806 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- USN-3910-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7f7ccc2ccc2e70c6054685f5e3522efa81556830 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1120 (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-3910-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- [debian-lts-announce] 20180718 [SECURITY] [DLA 1423-1] linux-4.9 new package (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2018:2948 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- [oss-security] 20180517 Qualys Security Advisory - Procps-ng Audit Report (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-3752-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2018:3096 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2018-11764 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-1120)Record last updated .