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CVE-2021-42739

Published: Oct 20, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-787
NVD MITRE
6.7CVSSMEDIUM
EPSS Score
0.4%
Top 64.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:LAC:LPR:HUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-787

Affected Products

Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
SUSE Linux Enterprise Point of ServiceNovell Inc.
On-prem
Operating Systems / linux-distro
FedoraFedora Project
On-premOS
Operating Systems / linux-distro
SUSE Manager ProxyNovell Inc.
On-prem
Operating Systems / linux-distro
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
novell inc.commercialUSOperating Systems
fedora projectoss-projectUSOperating Systemsaka fedora
and 11 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://nvd.nist.gov/vuln/detail/CVE-2021-42739
nvd.nist.gov
https://bugzilla.redhat.com/show_bug.cgi?id=1951739
bugzilla.redhat.com
https://lore.kernel.org/linux-media/YHaulytonFcW+lyZ@mwanda/
lore.kernel.org
and 14 more references View all →

Timeline

Published
Oct 20, 2021
Last Updated
Nov 21, 2024

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