Vulnerability in Linux Kernel
CVE-2020-12768
An issue was discovered in the Linux kernel before 5.6. svm_cpu_uninit in arch/x86/kvm/svm.c has a memory leak, aka CID-d80b64ff297e. NOTE: third parties dispute this issue because it's a one-time leak at the boot, the size is negligible, and it can't be triggered at will
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (30.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.8% 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
- Linux Kernel
- Canonical Ubuntu Linux — versions 18.04, 19.10, 20.04
- Debian Linux — versions 10.0
Weakness classification (CWE)
References
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Mailing List, Vendor Advisory)
- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6 (Patch, Mailing List, Vendor Advisory)
- bugzilla.suse.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- www.debian.org/security/2020/dsa-4699 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4413-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4411-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/4412-1/ (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-12768?
- CVE-2020-12768 is a medium-severity vulnerability in Linux Kernel, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.5/10. Published 2020-05-09.
- How severe is CVE-2020-12768?
- Medium severity. CVSS v3 base score is 5.5 out of 10.