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CVE-2018-1126

30
FAUCET Score

CVE-2018-1126 is a critical vulnerability affecting procps-ng versions prior to 3.3.15, stemming from an incorrect integer size in proc/alloc.* that can lead to truncation or integer overflow issues. This flaw impacts various distributions including Canonical, Debian, Red Hat, and Schneider Electric products. With a CVSS score of 9.8, it presents a severe risk, allowing unauthenticated attackers to achieve high confidentiality, integrity, and availability impacts over the network with low attack complexity. Despite its critical severity, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.3.15CPE matchmatch criteria
cpe:2.3:a:procps-ng_project:procps-ng:*:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.8MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
1.3
Impact Score
3.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.99%
Probability of exploitation in next 30 days
EPSS Percentile
78.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0199 is in the 67th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (10)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: procps-0:3.2.8-45.el6_9.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.6 Advanced Update SupportFixed in: procps-0:3.2.8-30.el6_6.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.6 Telco Extended Update SupportFixed in: procps-0:3.2.8-30.el6_6.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.7 Extended Update SupportFixed in: procps-0:3.2.8-35.el6_7.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: procps-ng-0:3.3.10-17.el7_5.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.4 Extended Update SupportFixed in: procps-ng-0:3.3.10-16.el7_4.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization 4 for Red Hat Enterprise Linux 7Fixed in: imgbased-0:1.0.17-0.1.el7ev
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization 4 for Red Hat Enterprise Linux 7Fixed in: redhat-release-virtualization-host-0:4.2-3.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization 4 for Red Hat Enterprise Linux 7Fixed in: redhat-virtualization-host-0:4.2-20180531.0
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: procps

Vendor Advisories (1)

redhatCVE-2018-1126Moderate

procps: incorrect integer size in proc/alloc.* leading to truncation / integer overflow issues

May 17, 2018

References

lists.opensuse.org / opensuse-security-announce/2019-10/msg00058.html
lists.opensuse.org / opensuse-security-announce/2019-10/msg00059.html
access.redhat.com / errata/RHSA-2018:1700
Third Party Advisory
access.redhat.com / errata/RHSA-2018:1777
Third Party Advisory
access.redhat.com / errata/RHSA-2018:1820
Third Party Advisory
access.redhat.com / errata/RHSA-2018:2267
Third Party Advisory
access.redhat.com / errata/RHSA-2018:2268
Third Party Advisory
access.redhat.com / errata/RHSA-2019:1944
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
seclists.org / oss-sec/2018/q2/122
Mailing ListThird Party Advisory
help.ecostruxureit.com / display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0
Third Party Advisory
lists.debian.org / debian-lts-announce/2018/05/msg00021.html
Third Party Advisory
usn.ubuntu.com / 3658-1
Third Party Advisory
usn.ubuntu.com / 3658-2
Third Party Advisory
debian.org / security/2018/dsa-4208
Third Party Advisory
qualys.com / 2018/05/17/procps-ng-audit-report-advisory.txt
ExploitThird Party Advisory
securityfocus.com / bid/104214
Third Party AdvisoryVDB Entry
securitytracker.com / id/1041057
Third Party AdvisoryVDB Entry