CVE-2019-20795

MEDIUM
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

iproute2 before 5.1.0 has a use-after-free in get_netnsid_from_name in ip/ipnetns.c. NOTE: security relevance may be limited to certain uses of setuid that, although not a default, are sometimes a configuration option offered to end users. Even when setuid is used, other factors (such as C library configuration) may block exploitability.

References

https://bugzilla.suse.com/show_bug.cgi?id=1171452

https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit/?id=9bf2c538a0eb10d66e2365a655bf6c52f5ba3d10

https://security.gentoo.org/glsa/202008-06

https://usn.ubuntu.com/4357-1/

Details

Source: MITRE

Published: 2020-05-09

Updated: 2020-09-10

Type: CWE-416

Risk Information

CVSS v2

Base Score: 2.1

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 4.4

Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 0.8

Severity: MEDIUM

Tenable Plugins

View all (3 total)

IDNameProductFamilySeverity
139441GLSA-202008-06 : iproute2: Denial of serviceNessusGentoo Local Security Checks
medium
136698Photon OS 3.0: Iproute2 PHSA-2020-3.0-0091NessusPhotonOS Local Security Checks
medium
136606Ubuntu 18.04 LTS : IPRoute vulnerability (USN-4357-1)NessusUbuntu Local Security Checks
medium