CVE-2021-42739

Updated: 2026-01-19 02:44:14.923319

Description:

The firewire subsystem in the Linux kernel through 5.14.13 has a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandles bounds checking.


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x MEDIUM 4.6
CVSS Version 3.x MEDIUM 6.7

Status

OS name Project name Version Score Severity Status Errata Last updated

Statement

AlmaLinux 9.2 ESU kernel 5.14.0 6.7 MEDIUM Ignored 2023-11-21 04:12:24 This flaw is exploitable only locally and requires high privileges, and it targets a very specific c...
CentOS 6 ELS kernel 2.6.32 6.7 MEDIUM Ignored 2022-04-06 12:47:37 Ignored due to low severity
CentOS 7 ELS kernel 3.10.0 6.7 MEDIUM Already Fixed 2023-09-19 09:30:05
CentOS 8.4 ELS kernel 4.18.0 6.7 MEDIUM Ignored 2024-06-24 10:38:53 Ignored due to low severity
CentOS 8.5 ELS kernel 4.18.0 6.7 MEDIUM Ignored 2024-06-24 10:38:07 Ignored due to low severity
CentOS Stream 8 ELS kernel 4.18.0 6.7 MEDIUM Ignored 2024-05-24 14:19:03 Ignored due to low severity
CloudLinux 6 ELS kernel 2.6.32 6.7 MEDIUM Ignored 2022-04-06 12:47:37 Ignored due to low severity
CloudLinux 7 ELS kernel 3.10.0 6.7 MEDIUM Ignored 2024-09-06 12:12:14 Ignored due to low severity
Oracle Linux 6 ELS kernel 2.6.32 6.7 MEDIUM Ignored 2022-11-30 10:08:50 Ignored due to low severity
Ubuntu 16.04 ELS linux-hwe 4.15.0 6.7 MEDIUM Ignored 2022-09-28 08:02:42 Ignored due to low severity
Total: 12