Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.14.15 |
| Redhat | Enterprise Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
| 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 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2021/11/05/1Mailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2013180Issue TrackingPatchThird Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.15Mailing ListRelease NotesThird Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1fMailing ListPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/12/msg00012.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/03/msg00012.htmlMailing ListThird Party Advisory
- https://lore.kernel.org/netdev/CAFcO6XOvGQrRTaTkaJ0p3zR7y7nrAWD79r48=L_BbOyrK9X-
- https://seclists.org/oss-sec/2021/q4/39ExploitMailing ListThird Party Advisory
- https://www.debian.org/security/2022/dsa-5096Third Party Advisory
- https://www.oracle.com/security-alerts/cpujul2022.htmlPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/11/05/1Mailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2013180Issue TrackingPatchThird Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.15Mailing ListRelease NotesThird Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1fMailing ListPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/12/msg00012.htmlMailing ListThird Party Advisory
FAQ
What is CVE-2021-43389?
CVE-2021-43389 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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.
How severe is CVE-2021-43389?
CVE-2021-43389 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-43389?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Redhat Enterprise Linux, Debian Debian Linux, Oracle Communications Cloud Native Core Binding Support Function, Oracle Communications Cloud Native Core Network Exposure Function.