Path Traversal in Libvirt
CVE-2019-10168
The virConnectBaselineHypervisorCPU() and virConnectCompareHypervisorCPU() libvirt APIs, 4.x.x before 4.10.1 and 5.x.x before 5.4.1, accept an "emulator" argument to specify the program providing emulation for a domain. Since v1.2.19, libvirt will execute that program to probe the domain's capabilities. Read-only clients could specify an arbitrary path for this argument, causing libvirtd to execute a crafted executable with its own privileges.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (44.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Libvirt — versions 4.x.x before 4.10.1, 5.x.x before 5.4.1
- Red Hat Enterprise Linux — versions 7.0, 8.0
- Red Hat Enterprise Linux Desktop — versions 6.0, 7.0
- Red Hat Enterprise Linux Server — versions 6.0, 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.6
- Red Hat Enterprise Linux Server Eus — versions 7.6
- Red Hat Enterprise Linux Server Tus — versions 7.6
- Red Hat Enterprise Linux Workstation — versions 6.0, 7.0
- Red Hat Libvirt
- Red Hat Virtualization — versions 4.3
Weakness classification (CWE)
References
- access.redhat.com/libvirt-privesc-vulnerabilities (Vendor Advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking, Vendor Advisory)
- security.gentoo.org/glsa/202003-18 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-10168?
- CVE-2019-10168 is a high-severity vulnerability in Libvirt, classified under CWE-250. CVSS score: 7.8/10. Published 2019-08-02.
- How severe is CVE-2019-10168?
- High severity. CVSS v3 base score is 7.8 out of 10.