CVE-2021-3760

Description

A flaw was found in the Linux kernel. A use-after-free vulnerability in the NFC stack can lead to a threat to confidentiality, integrity, and system availability.

CVSS Metrics

• v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
• v2.0•HIGH•Score: 7.2AV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 0.14%• Percentile: 33%

Techniques & Countermeasures

• CWE-416•Use After Free

  The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected Systems

• debian•debian_linux

  9.0

• fedoraproject•fedora

  34

• linux•linux_kernel

  ≥ 4.0, < 4.4.290 | ≥ 4.5, < 4.9.288 | ≥ 4.10, < 4.14.253 | ≥ 4.15, < 4.19.214 | ≥ 4.20, < 5.4.156 | ≥ 5.5, < 5.10.76 | ≥ 5.11, < 5.14.15

• netapp•h300e

  na

• netapp•h300s_firmware

  na

• netapp•h410c_firmware

  na

• netapp•h410s_firmware

  na

• netapp•h500e

  na

• netapp•h500s_firmware

  na

• netapp•h700e

  na

• netapp•h700s_firmware

  na

References (4)

• https://bugzilla.redhat.com/show_bug.cgi?id=2000585
• https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
• https://www.debian.org/security/2022/dsa-5096
• https://security.netapp.com/advisory/ntap-20220318-0007/