Buffer overflow in Xen
CVE-2018-10471
An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (out-of-bounds zero write and hypervisor crash) via unexpected INT 80 processing, because of an incorrect fix for CVE-2017-5754.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (33.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.1% 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
- Xen
- Debian Linux — versions 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/104003 (VDB Entry, Third Party Advisory, vdb-entry)
- security.gentoo.org/glsa/201810-06 (vendor-advisory)
- xenbits.xen.org/xsa/advisory-259.html (Mitigation, Vendor Advisory)
- www.debian.org/security/2018/dsa-4201 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2018/10/msg00009.html (mailing-list)
Frequently asked questions
- What is CVE-2018-10471?
- CVE-2018-10471 is a medium-severity vulnerability in Xen, classified under Out-of-bounds Write. CVSS score: 6.5/10. Published 2018-04-27.
- How severe is CVE-2018-10471?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2018-10471 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.