CVE-2021-42739

MediumCVSS 6.7/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 6.7/10CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://bugzilla.redhat.com/show_bug.cgi?id=1951739Issue Tracking, Mitigation, Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=35d2969ea3c7d32aee78066b1f3cf61a0d935a4e
https://lore.kernel.org/linux-media/YHaulytonFcW+lyZ%40mwanda/
https://seclists.org/oss-sec/2021/q2/46
https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
https://www.starwindsoftware.com/security/sw-20220804-0001/Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1951739Issue Tracking, Mitigation, Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=35d2969ea3c7d32aee78066b1f3cf61a0d935a4e
https://lore.kernel.org/linux-media/YHaulytonFcW+lyZ%40mwanda/
https://seclists.org/oss-sec/2021/q2/46
https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
https://www.starwindsoftware.com/security/sw-20220804-0001/Third Party Advisory

Timeline

Published: Oct 20, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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