Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2018-10938

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
27/08/2018
Last modified:
03/10/2019

Description

A flaw was found in the Linux kernel present since v4.0-rc1 and through v4.13-rc4. A crafted network packet sent remotely by an attacker may force the kernel to enter an infinite loop in the cipso_v4_optptr() function in net/ipv4/cipso_ipv4.c leading to a denial-of-service. A certain non-default configuration of LSM (Linux Security Module) and NetLabel should be set up on a system before an attacker could leverage this flaw.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.90 MEDIUM
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.90
Severity 3.x
MEDIUM
Vector 2.0
AV:N/AC:M/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.10 HIGH
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0
7.10
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:4.0:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.0:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.0:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.0:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.1:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.1:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.1:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.1:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.1:rc6:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools