Use After Free in Iproute2 Project
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.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (31.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 31.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Iproute2 Project
- Canonical Ubuntu Linux — versions 18.04
Weakness classification (CWE)
References
- git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit/ (Patch, Third Party Advisory)
- bugzilla.suse.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- usn.ubuntu.com/4357-1/ (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/202008-06 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-20795?
- CVE-2019-20795 is a medium-severity vulnerability in Iproute2 Project, classified under Use After Free. CVSS score: 4.4/10. Published 2020-05-09.
- How severe is CVE-2019-20795?
- Medium severity. CVSS v3 base score is 4.4 out of 10.