Linux Kernel 3.18 modify_user_hw_breakpoint 7pk error

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Linux Kernel 3.18. The impacted element is the function modify_user_hw_breakpoint. The manipulation leads to 7pk error. This vulnerability is traded as CVE-2018-1000199. An attack has to be approached locally. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel 3.18 (Operating System). It has been rated as critical. This issue affects the function modify_user_hw_breakpoint. The manipulation with an unknown input leads to a 7pk error vulnerability. Using CWE to declare the problem leads to CWE-388. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The Linux Kernel version 3.18 contains a dangerous feature vulnerability in modify_user_hw_breakpoint() that can result in crash and possibly memory corruption. This attack appear to be exploitable via local code execution and the ability to use ptrace. This vulnerability appears to have been fixed in git commit f67b15037a7a50c57f72e69a6d59941ad90a0f0f.

The bug was discovered 05/01/2018. The weakness was shared 05/24/2018 with Qihoo 360 Vulcan Team (Website). The advisory is shared at lkml.org. The identification of this vulnerability is CVE-2018-1000199 since 04/17/2018. An attack has to be approached locally. A simple authentication is required for exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 10 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 109762 (SUSE SLES12 Security Update : kernel (SUSE-SU-2018:1226-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 157744 (Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2018-4145)).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (109762), SecurityFocus (BID 103603†) and CERT Bund (WID-SEC-2022-0532). The entries VDB-80982, VDB-81408, VDB-82955 and VDB-82956 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Oracle Linux
  • Debian Linux
  • Open Source Linux Kernel
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle VM
  • NetApp FAS
  • Avaya Aura Communication Manager
  • Avaya Aura Session Manager
  • Avaya Aura Application Enablement Services
  • Avaya Aura System Manager
  • Avaya Aura Experience Portal
  • NetApp AFF

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: 7pk error
CWE: CWE-388
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 109762
Nessus Name: SUSE SLES12 Security Update : kernel (SUSE-SU-2018:1226-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 58191
OpenVAS Name: Debian LTS Advisory ([SECURITY] [DLA 1369-1] linux security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/10/2018 🔍
04/17/2018 +7 days 🔍
05/01/2018 +14 days 🔍
05/11/2018 +10 days 🔍
05/14/2018 +3 days 🔍
05/24/2018 +9 days 🔍
05/24/2018 +0 days 🔍
05/25/2018 +1 days 🔍
09/14/2025 +2669 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2018:1318
Organization: Qihoo 360 Vulcan Team
Status: Confirmed

CVE: CVE-2018-1000199 (🔍)
GCVE (CVE): GCVE-0-2018-1000199
GCVE (VulDB): GCVE-100-118169

OVAL: 🔍

SecurityFocus: 103603 - Microsoft Internet Explorer Scripting Engine CVE-2018-1000 Information Disclosure Vulnerability
SecurityTracker: 1040806
CERT Bund: WID-SEC-2022-0532 - Linux Kernel: Mehrere Schwachstellen

See also: 🔍

Entryinfo

Created: 05/25/2018 08:18
Updated: 09/14/2025 03:47
Changes: 05/25/2018 08:18 (76), 02/08/2020 15:31 (6), 03/17/2023 08:21 (5), 09/14/2025 03:47 (22)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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