CVE-2019-20795
iproute2 before 5.1.0 has a use-after-free in get_netnsid_from_name in ip/ipnetns.c.
Does this matter?
Lower severity and a low EPSS score (0.40%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 4.4 MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.40% probability · 34th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- iproute2 project/iproute2 · canonical/ubuntu linux
- Source
- cve@mitre.org
EPSS 0.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://bugzilla.suse.com/show_bug.cgi?id=1171452Issue Tracking, Third Party Advisory
- https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit/?id=9bf2c538a0eb10d66e2365a655bf6c52f5ba3d10Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202008-06Third Party Advisory
- https://usn.ubuntu.com/4357-1/Third Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1171452Issue Tracking, Third Party Advisory
- https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit/?id=9bf2c538a0eb10d66e2365a655bf6c52f5ba3d10Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202008-06Third Party Advisory
- https://usn.ubuntu.com/4357-1/Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.