Buffer overflow in Linux Kernel
CVE-2020-12659
An issue was discovered in the Linux kernel before 5.6.7. xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) because of a lack of headroom validation.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (53.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Linux Kernel
- NetApp Active Iq Unified Manager
- NetApp Aff Baseboard Management Controller — versions a700s
- NetApp Cloud Backup
- NetApp Hci Baseboard Management Controller — versions h300s, h410c, h410s
- NetApp Solidfire Baseboard Management Controller
- NetApp Solidfire \& Hci Management Node
- NetApp Steelstore Cloud Integrated Storage
Weakness classification (CWE)
References
- bugzilla.kernel.org/show_bug.cgi (Exploit, Issue Tracking, Vendor Advisory)
- github.com/torvalds/linux/commit/99e3a236dd43d06c65af0a2ef9cb44306aef6e02 (Patch, Third Party Advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Third Party Advisory)
- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.7 (Release Notes, Vendor Advisory)
- security.netapp.com/advisory/ntap-20200608-0001/ (Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html (vendor-advisory, Mailing List, VDB Entry, Third Party Advisory)
- usn.ubuntu.com/4388-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4389-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4387-1/ (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-12659?
- CVE-2020-12659 is a medium-severity vulnerability in Linux Kernel, classified under Out-of-bounds Write. CVSS score: 6.7/10. Published 2020-05-05.
- How severe is CVE-2020-12659?
- Medium severity. CVSS v3 base score is 6.7 out of 10.