Linux Kernel up to 4.15.7 Netfilter Subsystem arp_tables.c null pointer dereference

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3.5$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 4.15.7. This vulnerability affects unknown code of the file net/ipv4/netfilter/arp_tables.c of the component Netfilter Subsystem. The manipulation leads to null pointer dereference. This vulnerability is traded as CVE-2018-1065. An attack has to be approached locally. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 4.15.7 (Operating System). It has been rated as problematic. This issue affects some unknown processing of the file net/ipv4/netfilter/arp_tables.c of the component Netfilter Subsystem. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. The summary by CVE is:

The netfilter subsystem in the Linux kernel through 4.15.7 mishandles the case of a rule blob that contains a jump but lacks a user-defined chain, which allows local users to cause a denial of service (NULL pointer dereference) by leveraging the CAP_NET_RAW or CAP_NET_ADMIN capability, related to arpt_do_table in net/ipv4/netfilter/arp_tables.c, ipt_do_table in net/ipv4/netfilter/ip_tables.c, and ip6t_do_table in net/ipv6/netfilter/ip6_tables.c.

The bug was discovered 03/05/2018. The weakness was shared 03/02/2018 by Mohamed Ghannam (Website). The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2018-1065 since 12/04/2017. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 109518 (Debian DSA-4188-1 : linux - security update (Spectre)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 237034 (Red Hat Update for kernel-alt (RHSA-2018:2948)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (109518), SecurityFocus (BID 102507†) and CERT Bund (WID-SEC-2022-0532). The entries VDB-109193, VDB-110288, VDB-110931 and VDB-110932 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.6
VulDB Meta Temp Score: 3.5

VulDB Base Score: 2.5
VulDB Temp Score: 2.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.7
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
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: 109518
Nessus Name: Debian DSA-4188-1 : linux - security update (Spectre)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 63700
OpenVAS Name: Fedora Update for kernel FEDORA-2018-2bce10900e
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: git.kernel.org

Timelineinfo

12/04/2017 🔍
01/02/2018 +29 days 🔍
03/02/2018 +59 days 🔍
03/02/2018 +0 days 🔍
03/03/2018 +1 days 🔍
03/05/2018 +2 days 🔍
05/01/2018 +57 days 🔍
05/02/2018 +1 days 🔍
09/14/2025 +2692 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2018:2948
Researcher: Mohamed Ghannam
Status: Confirmed

CVE: CVE-2018-1065 (🔍)
GCVE (CVE): GCVE-0-2018-1065
GCVE (VulDB): GCVE-100-114029

OVAL: 🔍

SecurityFocus: 102507 - Linux Kernel 'net/rds/rdma.c' Local Denial of Service Vulnerability
SecurityTracker: 1040446
CERT Bund: WID-SEC-2022-0532 - Linux Kernel: Mehrere Schwachstellen

See also: 🔍

Entryinfo

Created: 03/03/2018 10:07
Updated: 09/14/2025 03:47
Changes: 03/03/2018 10:07 (77), 01/10/2020 09:00 (6), 02/16/2023 15:24 (6), 09/14/2025 03:47 (21)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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