Vulnerability CVE-2021-43389
Published: 2021-11-04

Description:
An issue was discovered in the Linux kernel before 5.14.15. There is an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c.

Type:

CWE-125

 (Out-of-bounds Read)

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
2.1/10
2.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Redhat -> Enterprise linux 
Linux -> Linux kernel 

 References:
https://lore.kernel.org/netdev/CAFcO6XOvGQrRTaTkaJ0p3zR7y7nrAWD79r48=L_BbOyrK9X-vA@mail.gmail.com/
https://seclists.org/oss-sec/2021/q4/39
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1f3e2e97c003f80c4b087092b225c8787ff91e4d
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.15
https://bugzilla.redhat.com/show_bug.cgi?id=2013180
http://www.openwall.com/lists/oss-security/2021/11/05/1
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