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CVE-2018-1123

38
FAUCET Score

CVE-2018-1123 is a denial-of-service vulnerability affecting procps-ng versions prior to 3.3.15, specifically impacting the 'ps' utility through a mmap buffer overflow. This flaw, present in various Canonical and Debian Linux distributions, can lead to a system crash due to an inbuilt guard page, limiting the impact to a temporary denial of service. With a CVSS v3 score of 7.5 (HIGH), it is easily exploitable over the network with low attack complexity and no user interaction, resulting in high availability impact. While not listed in CISA's KEV catalog and lacking Metasploit or Nuclei exploits, an ExploitDB entry (EDB-44806) exists, though there is minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.3.15CPE matchmatch criteria
cpe:2.3:a:procps-ng_project:procps-ng:*:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
17.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

3.9LOW

CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
1.3
Impact Score
2.5
CvssVersion
3.0

Exploit Intelligence

EPSS Score
9.08%
Probability of exploitation in next 30 days
EPSS Percentile
94.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-44806 · May 30, 2018
This CVE's current EPSS score of 0.0908 is in the 92nd percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: procps
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: procps
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: procps-ng

Vendor Advisories (1)

redhatCVE-2018-1123Low

procps: denial of service in ps via mmap buffer overflow

May 17, 2018

References

lists.opensuse.org / opensuse-security-announce/2019-10/msg00058.html
lists.opensuse.org / opensuse-security-announce/2019-10/msg00059.html
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
seclists.org / oss-sec/2018/q2/122
Mailing ListThird Party Advisory
lists.apache.org / thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
lists.apache.org / thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
lists.debian.org / debian-lts-announce/2018/05/msg00021.html
Third Party Advisory
security.gentoo.org / glsa/201805-14
Third Party Advisory
usn.ubuntu.com / 3658-1
Third Party Advisory
usn.ubuntu.com / 3658-3
Third Party Advisory
debian.org / security/2018/dsa-4208
Third Party Advisory
exploit-db.com / exploits/44806
Third Party AdvisoryVDB Entry
qualys.com / 2018/05/17/procps-ng-audit-report-advisory.txt
ExploitThird Party Advisory
securityfocus.com / bid/104214
Third Party AdvisoryVDB Entry