CVE-2021-43389
Advisory lineage Upstream: 0 Downstream: 39
Modified
Published: 04 Nov 2021, 18:39
Last modified:04 Aug 2024, 03:55
Vulnerability Summary
Overall Risk (default)
medium
32/100 CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.01% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected
Timeline
04 Nov 2021, 18:39
Published
Vulnerability first disclosed
04 Aug 2024, 03:55
Last Modified
Vulnerability information updated
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.
CVSS Metrics
- v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- v2.0•LOW•Score: 2.1AV:L/AC:L/Au:N/C:N/I:N/A:P
EPSS Trends
Current EPSS score: 0.01%• Percentile: 2%
Techniques & Countermeasures
- CWE-125•Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
Affected Systems
- debian•debian_linux
9.0 | 10.0
- linux•linux_kernel
< 5.14.15
- 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
- redhat•enterprise_linux
8.0
References (10)
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.15
- https://seclists.org/oss-sec/2021/q4/39
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1f3e2e97c003f80c4b087092b225c8787ff91e4d
- https://lore.kernel.org/netdev/CAFcO6XOvGQrRTaTkaJ0p3zR7y7nrAWD79r48=L_BbOyrK9X-vA%40mail.gmail.com/
- http://www.openwall.com/lists/oss-security/2021/11/05/1
- https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
- https://www.debian.org/security/2022/dsa-5096
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://bugzilla.redhat.com/show_bug.cgi?id=2013180