CVE-2021-42739
6.7 MEDIUMThe firewire subsystem in the Linux kernel through 5.14.13 has a buffer overflow related to drivers/media/firewire/firedtv-avc.c and driv...
Published: 2021-10-20 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 6.7 MEDIUM
- Vector
- CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-787
Affected products
| Vendor | Product |
|---|---|
| debian | communications_cloud_native_core_binding_support_function, communications_cloud_native_core_network_exposure_function, communications_cloud_native_core_policy |
| fedoraproject | communications_cloud_native_core_binding_support_function, communications_cloud_native_core_network_exposure_function, communications_cloud_native_core_policy |
| linux | communications_cloud_native_core_binding_support_function, communications_cloud_native_core_network_exposure_function, communications_cloud_native_core_policy |
| oracle | communications_cloud_native_core_binding_support_function, communications_cloud_native_core_network_exposure_function, communications_cloud_native_core_policy |
| starwindsoftware | communications_cloud_native_core_binding_support_function, communications_cloud_native_core_network_exposure_function, communications_cloud_native_core_policy |
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-42739
- [Other]https://bugzilla.redhat.com/show_bug.cgi?id=1951739
- [Other]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=35d2969ea3c7d32aee78066b1f3cf61a0d935a4e
- [Other]https://lore.kernel.org/linux-media/YHaulytonFcW+lyZ%40mwanda/
- [Other]https://seclists.org/oss-sec/2021/q2/46
- [Patch]https://www.oracle.com/security-alerts/cpujul2022.html
- [Other]https://www.starwindsoftware.com/security/sw-20220804-0001/
- [Other]https://bugzilla.redhat.com/show_bug.cgi?id=1951739
- [Other]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=35d2969ea3c7d32aee78066b1f3cf61a0d935a4e
- [Other]https://lore.kernel.org/linux-media/YHaulytonFcW+lyZ%40mwanda/
- [Other]https://seclists.org/oss-sec/2021/q2/46
- [Patch]https://www.oracle.com/security-alerts/cpujul2022.html
- [Other]https://www.starwindsoftware.com/security/sw-20220804-0001/
Related CVEs
Same vendor
- CVE-2026-35273 — Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Updates Environment Management) (9.8 CRITICAL)
- CVE-2026-49975 — Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP ... (7.5 HIGH)
- CVE-2026-46273 — In the Linux kernel, the following vulnerability has been resolved: ibmveth: Disable GSO for packets with small MSS Some physical adapt... (8.6 HIGH)
- CVE-2026-46272 — In the Linux kernel, the following vulnerability has been resolved: coresight: tmc-etr: Fix race condition between sysfs and perf mode ... (4.7 MEDIUM)
- CVE-2026-46271 — In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: do WoW offloads only on primary link In case of multi... (7.8 HIGH)
Same CWE
- CVE-2026-47750 — stable-diffusion.cpp is a pure C/C++ library for running diffusion model (Stable Diffusion, Flux, Wan, Qwen Image, Z-Image, and more) inf... (7.8 HIGH)
- CVE-2026-47747 — stable-diffusion.cpp is a pure C/C++ library for running diffusion model (Stable Diffusion, Flux, Wan, Qwen Image, Z-Image, and more) inf... (7.8 HIGH)
- CVE-2026-47749 — stable-diffusion.cpp is a pure C/C++ library for running diffusion model (Stable Diffusion, Flux, Wan, Qwen Image, Z-Image, and more) inf... (7.8 HIGH)
- CVE-2026-12314 — Memory safety bug fixed in Thunderbird 152 (7.5 HIGH)
- CVE-2026-12310 — Memory safety bug fixed in Thunderbird 152 (7.5 HIGH)