CVE-2019-20795

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.

Score

CVSS 3.1 4.4 Medium

Status

Modified - cve@mitre.org

Published

2020-05-09

Last modified

2026-10-14

Weaknesses

CWE-416

Affected products

• Ubuntu Linux (Canonical)
• Iproute2 (Iproute2 Project)
• Simatic S7-1500 Cpu 1518-4 Pndp Mfp (Siemens)
• Simatic S7-1500 Cpu 1518f-4 Pndp Mfp (Siemens)
• Siplus S7-1500 Cpu 1518-4 Pndp Mfp (Siemens)

References

• https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit/?id=9bf2c538a0eb10d66e2365a655bf6c52f5ba3d10
• https://bugzilla.suse.com/show_bug.cgi?id=1171452
• https://usn.ubuntu.com/4357-1/
• https://security.gentoo.org/glsa/202008-06
• https://cert-portal.siemens.com/productcert/html/ssa-398330.html