Vulnerability in Linux

CVE-2021-47215

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: kTLS, Fix crash in RX resync flow For the TLS RX resync flow, we maintain a list of TLS contexts that require some attention, to communicate their resync information to the HW. Here we fix list corruptions, by protecting the entries against movements coming from resync_handle_seq_match(), until their resync handling in napi is fully completed.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (41.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-47215: held from 0.005 to 0.005.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000

Affected products

  • Linux — versions e9ce991bce5bacf71641bd0f72f4b7c589529f40, 5.13, 0
  • Linux Kernel — versions 5.16

References

Frequently asked questions

What is CVE-2021-47215?
CVE-2021-47215 is a critical-severity vulnerability in Linux. CVSS score: 9.8/10. Published 2024-04-10.
How severe is CVE-2021-47215?
Critical severity. CVSS v3 base score is 9.8 out of 10.