Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 5.14.13 |
| Fedoraproject | Fedora | 33 |
| Debian | Debian Linux | 9.0 |
| Starwindsoftware | Starwind San \& Nas | v8r12 |
| Starwindsoftware | Starwind Virtual San | v8r13 |
| Oracle | Communications Cloud Native Core Binding Support Function | 22.1.3 |
| Oracle | Communications Cloud Native Core Network Exposure Function | 22.1.1 |
| Oracle | Communications Cloud Native Core Policy | 22.2.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1951739Issue TrackingMitigationThird Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=35
- https://lore.kernel.org/linux-media/YHaulytonFcW+lyZ%40mwanda/
- https://seclists.org/oss-sec/2021/q2/46
- https://www.oracle.com/security-alerts/cpujul2022.htmlPatchThird Party Advisory
- https://www.starwindsoftware.com/security/sw-20220804-0001/Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1951739Issue TrackingMitigationThird Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=35
- https://lore.kernel.org/linux-media/YHaulytonFcW+lyZ%40mwanda/
- https://seclists.org/oss-sec/2021/q2/46
- https://www.oracle.com/security-alerts/cpujul2022.htmlPatchThird Party Advisory
- https://www.starwindsoftware.com/security/sw-20220804-0001/Third Party Advisory
FAQ
What is CVE-2021-42739?
CVE-2021-42739 is a vulnerability with a CVSS score of 6.7 (MEDIUM). 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 ...
How severe is CVE-2021-42739?
CVE-2021-42739 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-42739?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Fedoraproject Fedora, Debian Debian Linux, Starwindsoftware Starwind San \& Nas, Starwindsoftware Starwind Virtual San.