procps-ng up to 3.3.14 proc/alloc.* integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in procps-ng up to 3.3.14. This impacts an unknown function of the file proc/alloc.*. The manipulation results in integer overflow. This vulnerability is identified as CVE-2018-1126. The attack can be executed remotely. Additionally, an exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in procps-ng up to 3.3.14. Affected is an unknown code block of the file proc/alloc.*. The manipulation with an unknown input leads to a integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

procps-ng before version 3.3.15 is vulnerable to an incorrect integer size in proc/alloc.* leading to truncation/integer overflow issues. This flaw is related to CVE-2018-1124.

The bug was discovered 05/17/2018. The weakness was released 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-2018-1126 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), EUVD (EUVD-2018-11770) and SecurityFocus (BID 104214†). Entries connected to this vulnerability are available at VDB-118115, VDB-118137, VDB-118138 and VDB-118140. 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: 7.3
VulDB Meta Temp Score: 7.1

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

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 4.8
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
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: 54750
OpenVAS Name: Fedora Update for procps-ng FEDORA-2018-de5de06754
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 🔍
05/23/2018 +0 days 🔍
05/24/2018 +1 days 🔍
12/17/2025 +2764 days 🔍

Sourcesinfo

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

CVE: CVE-2018-1126 (🔍)
GCVE (CVE): GCVE-0-2018-1126
GCVE (VulDB): GCVE-100-118116
EUVD: 🔍

OVAL: 🔍

SecurityFocus: 104214 - Procps-ng Procps Multiple Security Vulnerabilities
SecurityTracker: 1041057

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

Entryinfo

Created: 05/23/2018 19:23
Updated: 12/17/2025 22:33
Changes: 05/23/2018 19:23 (77), 02/08/2020 09:25 (8), 03/14/2023 20:52 (5), 03/14/2023 21:00 (12), 03/14/2023 21:08 (1), 12/17/2025 22:33 (15)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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