Public Date:
1575465: CVE-2018-1124 procps-ng, procps: Integer overflows leading to heap overflow in file2strvec
Multiple integer overflows leading to heap corruption flaws were discovered in file2strvec(). These vulnerabilities can lead to privilege escalation for a local attacker who can create entries in procfs by starting processes, which will lead to crashes or arbitrary code execution in proc utilities run by other users (eg pgrep, pkill, pidof, w).

Find out more about CVE-2018-1124 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v3 metrics

CVSS3 Base Score 7.3
CVSS3 Base Metrics CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity Impact High
Availability Impact High

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux Server TUS (v. 6.6) (procps) RHSA-2018:2268 2018-07-26
Red Hat Enterprise Linux Update Services for SAP Solutions 7.3 (procps-ng) RHSA-2019:2401 2019-08-07
Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts RHSA-2018:1820 2018-06-11
Red Hat Enterprise Linux Advanced Update Support 6.6 (procps) RHSA-2018:2268 2018-07-26
Red Hat Enterprise Linux Extended Update Support 7.4 (procps-ng) RHSA-2019:1944 2019-07-30
Red Hat Enterprise Linux 7 (procps-ng) RHSA-2018:1700 2018-05-23
Red Hat Enterprise Linux Extended Update Support 6.7 (procps) RHSA-2018:2267 2018-07-26
Red Hat Enterprise Linux 6 (procps) RHSA-2018:1777 2018-05-31
Red Hat Enterprise Linux 7.3 Telco Extended Update Support (procps-ng) RHSA-2019:2401 2019-08-07
Red Hat Enterprise Linux Advanced Update Support 7.3 (procps-ng) RHSA-2019:2401 2019-08-07

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 8 procps-ng Not affected
Red Hat Enterprise Linux 5 procps Will not fix
Unless explicitly stated as not affected, all previous versions of packages in any minor update stream of a product listed here should be assumed vulnerable, although may not have been subject to full analysis.


Red Hat would like to thank Qualys Research Labs for reporting this issue.

External References

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