procps-ng up to 3.3.14 strncat memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in procps-ng up to 3.3.14. Affected by this vulnerability is the function strncat. The manipulation results in memory corruption. This vulnerability is known as CVE-2018-1125. It is possible to launch the attack remotely. Furthermore, an exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in procps-ng up to 3.3.14. It has been classified as critical. Affected is the function strncat. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

procps-ng before version 3.3.15 is vulnerable to a stack buffer overflow in pgrep. This vulnerability is mitigated by FORTIFY, as it involves strncat() to a stack-allocated string. When pgrep is compiled with FORTIFY (as on Red Hat Enterprise Linux and Fedora), the impact is limited to a crash.

The bug was discovered 05/17/2018. The weakness was published 05/23/2018 with Qualys as confirmed mailinglist post (oss-sec). The advisory is shared for download at seclists.org. This vulnerability is traded as CVE-2018-1125 since 12/04/2017. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 110094 (Ubuntu 14.04 LTS / 16.04 LTS / 17.10 / 18.04 LTS : procps vulnerabilities (USN-3658-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171725 (SUSE Enterprise Linux Security Update for procps (SUSE-SU-2018:2451-2)).

Upgrading to version 3.3.15 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (44806), Tenable (110094) and SecurityFocus (BID 104214†). Similar entries are available at VDB-118115, VDB-118116, VDB-118137 and VDB-118138. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.2

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 4.4
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 110094
Nessus Name: Ubuntu 14.04 LTS / 16.04 LTS / 17.10 / 18.04 LTS : procps vulnerabilities (USN-3658-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 56355
OpenVAS Name: Debian Security Advisory DSA 4208-1 (procps - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: procps-ng 3.3.15

Timelineinfo

12/04/2017 🔍
05/17/2018 +164 days 🔍
05/17/2018 +0 days 🔍
05/23/2018 +5 days 🔍
05/23/2018 +0 days 🔍
05/23/2018 +0 days 🔍
05/24/2018 +1 days 🔍
05/24/2018 +0 days 🔍
12/18/2025 +2764 days 🔍

Sourcesinfo

Advisory: USN-3658-1
Organization: Qualys
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-1125 (🔍)
GCVE (CVE): GCVE-0-2018-1125
GCVE (VulDB): GCVE-100-118140

OVAL: 🔍

SecurityFocus: 104214 - Procps-ng Procps Multiple Security Vulnerabilities

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 05/24/2018 08:54
Updated: 12/18/2025 00:05
Changes: 05/24/2018 08:54 (77), 02/08/2020 11:49 (8), 03/17/2023 06:54 (4), 03/17/2023 07:04 (12), 12/18/2025 00:05 (15)
Complete: 🔍
Cache ID: 216::103

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