CVE-2019-20934

low-risk
Published 2020-11-28

An issue was discovered in the Linux kernel before 5.2.6. On NUMA systems, the Linux fair scheduler has a use-after-free in show_numa_stats() because NUMA fault statistics are inappropriately freed, aka CID-16d51a590a8c.

Do I need to act?

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0.04% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
LOCAL / HIGH complexity

Affected Products (2)

Affected Vendors

Linux

References (6)

Issue Tracking https://bugs.chromium.org/p/project-zero/issues/detail?id=1913
Vendor Advisory https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.6
Patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16...
Issue Tracking https://bugs.chromium.org/p/project-zero/issues/detail?id=1913
Vendor Advisory https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.6
Patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16...
21
/ 100
low-risk
Severity 14/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 7/34 · Low