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Public proof of conceptFix available

CVE-2018-1124

A public proof of concept exists; no exploitation attested.

  • Published2018-05-23
  • WeaknessCWE-122 · CWE-190 · CWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

procps-ng before version 3.3.15 is vulnerable to multiple integer overflows leading to a heap corruption in file2strvec function. This allows a privilege escalation for a local attacker who can create entries in procfs by starting processes, which could result in crashes or arbitrary code execution in proc utilities run by other users.

Timeline

dates in UTC
  1. 2018-05-30Exploit-DB entryExploit-DB

Versions per branch

NVD
Canonical ubuntu linux
BranchAffectedFixed in
14.4= 14.04no fix published
16.4= 16.04no fix published
17.10= 17.10no fix published
18.4= 18.04no fix published
Debian debian linux
BranchAffectedFixed in
7.0= 7.0no fix published
8.0= 8.0no fix published
9.0= 9.0no fix published
Redhat enterprise linux
BranchAffectedFixed in
6.0= 6.0no fix published
7.0= 7.0no fix published
7.5= 7.5no fix published

6 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As redhat, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • [UNKNOWN] procps-ng
    Affected
    • = procps-ng 3.3.15no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2019-10-26

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • imgbasedRed Hat:enterprise_linux:7::hypervisorall versions · fixed in 0:1.0.17-0.1.el7evand 1 other package
  • procpsUbuntu:18.04:LTSall versions · fixed in 2:3.3.12-3ubuntu1.1
  • procpsUbuntu:16.04:LTSall versions · fixed in 2:3.3.10-4ubuntu2.4
  • procpsUbuntu:14.04:LTSall versions · fixed in 1:3.3.9-1ubuntu2.3
  • procpsSUSE:OpenStack Cloud 7all versions · fixed in 3.3.9-11.18.1
  • procpsSUSE:Linux Enterprise Software Development Kit 12 SP4all versions · fixed in 3.3.9-11.18.1
  • procpsSUSE:Linux Enterprise Software Development Kit 12 SP3all versions · fixed in 3.3.9-11.11.1
  • procpsSUSE:Linux Enterprise Software Development Kit 12 SP3all versions · fixed in 3.3.9-11.14.1

52 more package ranges on OSV.dev

Vendor advisories

  • CVE-2018-1124 Red Hat Product Security273 products fixed · 1 known affected

    procps: Integer overflows leading to heap overflow in file2strvec

    procps.src as a component of Red Hat Enterprise Linux 5

  • RHSA-2019:2401 Red Hat Product Security35 products fixed

    Red Hat Security Advisory: procps-ng security update

  • RHSA-2019:1944 Red Hat Product Security43 products fixed

    Red Hat Security Advisory: procps-ng security update

  • RHSA-2018:2268 Red Hat Product Security18 products fixed

    Red Hat Security Advisory: procps security update

  • RHSA-2018:2267 Red Hat Product Security34 products fixed

    Red Hat Security Advisory: procps security update

  • RHSA-2018:1820 Red Hat Product Security8 products fixed

    Red Hat Security Advisory: Red Hat Virtualization security, bug fix, and enhancement update

2 more advisories

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security RHSA-2019:2401 · 35 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
  2. Vendor fix Red Hat Product Security RHSA-2018:1820 · 8 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
  3. No fix planned, says the vendor Red Hat Product Security CVE-2018-1124 · 1 productWill not fix

Detection

read 2026-11-09 09:28 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-44806
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionnone2025-12-17
  • NVDCVSS 3.17.8read 2026-10-23
  • CNACVSS 3.07.3known since 2026-10-23
  • NVDCVSS 2.04.6read 2026-10-23
  • CNAweakness (CWE)CWE-122, CWE-190known since 2026-10-23
  • NVDweakness (CWE)CWE-190, CWE-787read 2026-10-23
  • FIRST EPSSEPSS score1.9 %2026-11-08
  • Exploit-DBdetectionread 2026-11-09
  • OSVaffected packages—
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2018-05-23
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-6m7w-m36x-76pq

Frequently asked questions

What is CVE-2018-1124?

procps-ng before version 3.3.15 is vulnerable to multiple integer overflows leading to a heap corruption in file2strvec function. This allows a privilege escalation for a local attacker who can create entries in procfs by starting processes, which could result in crashes or arbitrary code execution in proc utilities run by other users.

Is CVE-2018-1124 actively exploited?

Active exploitation of CVE-2018-1124 has not been confirmed. Its EPSS score was 1.9% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-1124?

CVE-2018-1124 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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