Medium severity · published Jul 21, 2021
CVE-2021-37159
hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a…
6.4
CVSS
0.4%
EPSS
No
On KEV
Description
hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.
CVSS vector
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Physical
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
through 5.13.4 · 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
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-37159
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-37159
bugzilla.suse.com
https://bugzilla.suse.com/show_bug.cgi?id=1188601
git.kernel.org
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a6ecfb39ba9d7316057cea823b196b734f6b18ca
git.kernel.org
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dcb713d53e2eadf42b878c12a471e74dc6ed3145
Mailing List
https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html
Mailing List
https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210819-0003/
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