Medium severity · published Oct 20, 2021
CVE-2021-42739
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…
6.7
CVSS
0.5%
EPSS
No
On KEV
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
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 41% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
through 5.14.13 · source: NVD
CC
Communications Cloud Native Core Binding Support Function · Oracle
22.1.3 · source: NVD
CC
Communications Cloud Native Core Network Exposure Function · Oracle
22.1.1 · source: NVD
CC
Communications Cloud Native Core Policy · Oracle
22.2.0 · source: NVD
DL
Debian Linux · Debian
9.0 · source: NVD
FE
Fedora · Fedoraproject
33; 34; 35 · source: NVD
SS
Starwind San & Nas · Starwindsoftware
v8r12 · source: NVD
SV
Starwind Virtual San · Starwindsoftware
v8r13 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-42739
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-42739
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1951739
git.kernel.org
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=35d2969ea3c7d32aee78066b1f3cf61a0d935a4e
lore.kernel.org
https://lore.kernel.org/linux-media/YHaulytonFcW+lyZ%40mwanda/
seclists.org
https://seclists.org/oss-sec/2021/q2/46
Patch
https://www.oracle.com/security-alerts/cpujul2022.html
Third Party Advisory
https://www.starwindsoftware.com/security/sw-20220804-0001/
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