5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
30.7%
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.
Author | Note |
---|---|
cascardo | Adding a CAPI controller with CMTP requires CAP_NET_ADMIN in the initial namespace (init_ns). Other ISDN controllers that use CAPI have been removed upstream. |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux-azure-4.15 | < 4.15.0-1129.142 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-azure-5.11 | < 5.11.0-1023.24~20.04.1 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-azure-5.4 | < 5.4.0-1065.68~18.04.1 | UNKNOWN |
ubuntu | 22.04 | noarch | linux-azure-fde | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-azure-fde | < 5.4.0-1065.68 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-bluefield | < 5.4.0-1023.26 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-dell300x | < 4.15.0-1033.38 | UNKNOWN |
ubuntu | 21.04 | noarch | linux-gcp | < 5.11.0-1024.26 | UNKNOWN |
ubuntu | 21.10 | noarch | linux-gcp | < 5.13.0-1008.9 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-gcp | < 4.15.0-1114.128~16.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only | UNKNOWN |
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.15
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-43389
git.kernel.org/linus/1f3e2e97c003f80c4b087092b225c8787ff91e4d
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1f3e2e97c003f80c4b087092b225c8787ff91e4d
launchpad.net/bugs/cve/CVE-2021-43389
lore.kernel.org/netdev/CAFcO6XOvGQrRTaTkaJ0p3zR7y7nrAWD79r48=L_BbOyrK9X-vA@mail.gmail.com/
nvd.nist.gov/vuln/detail/CVE-2021-43389
seclists.org/oss-sec/2021/q4/39
security-tracker.debian.org/tracker/CVE-2021-43389
ubuntu.com/security/notices/USN-5139-1
ubuntu.com/security/notices/USN-5165-1
ubuntu.com/security/notices/USN-5208-1
ubuntu.com/security/notices/USN-5209-1
ubuntu.com/security/notices/USN-5210-1
ubuntu.com/security/notices/USN-5218-1
ubuntu.com/security/notices/USN-5343-1
www.openwall.com/lists/oss-security/2021/10/19/1
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
30.7%