CVE-2021-42739
MEDIUM
6.7
CVSS Score
Published: October 20, 2021 at 12:00 AM UTC
Updated: June 17, 2026 at 04:10 AM UTC
8 products affected across 5 vendorsLinux KernelDebian LinuxFedora
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Severity
MEDIUM6.7
Exploit prediction
EPSS 0.5%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%v ≤ 5.14.13
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (6)
Issue TrackingMitigationThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1951739x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://www.oracle.com/security-alerts/cpujul2022.htmlThird Party Advisory
Source: [email protected]
https://www.starwindsoftware.com/security/sw-20220804-0001/CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-787
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