Use After Free in Linux Kernel

CVE-2020-8649

There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vgacon_invert_region function in drivers/video/console/vgacon.c.

Vulnerability class: Use-After-Free

EPSS: 0.005 (39.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (Exploit, x_refsource_MISC, Issue Tracking, Vendor Advisory)
  • cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_SUSE)
  • cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
  • cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
  • cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
  • cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)

Frequently asked questions

What is CVE-2020-8649?
CVE-2020-8649 is a medium-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 5.9/10. Published 2020-02-06.
How severe is CVE-2020-8649?
Medium severity. CVSS v3 base score is 5.9 out of 10.
Is CVE-2020-8649 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.