CVE-2019-20795
iproute: use-after-free in get_netnsid_from_name in ip/ipnetns.c
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 5, 2019
Updated · October 14, 2026
Description
A use-after-free flaw was found in iproute in the network namespace management component of the ip command-line utility. This flaw allows a local attacker to crash the program while displaying network namespaces. The highest threat from this vulnerability is to system availability.
Statement
This issue affects the versions of iproute as shipped with Red Hat Enterprise Linux 7. Red Hat Enterprise Linux 8 is not affected by this flaw.
This flaw has been rated as having a security impact of Low, and is not currently planned to be addressed in future updates of Red Hat Enterprise Linux 5 and Red Hat Enterprise Linux 6. Red Hat Enterprise Linux 5 is now in the Extended Life Phase of the support and maintenance life cycle. Red Hat Enterprise Linux 6 is now in the Maintenance Support 2 Phase of the support and maintenance life cycle. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-416 · Use After Free