CVE-2018-10938

HIGH

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.

References

http://seclists.org/oss-sec/2018/q3/179

http://www.securityfocus.com/bid/105154

http://www.securitytracker.com/id/1041569

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10938

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=40413955ee265a5e42f710940ec78f5450d49149

https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html

https://usn.ubuntu.com/3797-1/

https://usn.ubuntu.com/3797-2/

https://www.debian.org/security/2018/dsa-4308

Details

Source: MITRE

Published: 2018-08-27

Updated: 2018-11-06

Type: CWE-399

Risk Information

CVSS v2.0

Base Score: 7.1

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 8.6

Severity: HIGH

CVSS v3.0

Base Score: 5.9

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

Impact Score: 3.6

Exploitability Score: 2.2

Severity: MEDIUM