vulnerability
Oracle Linux: CVE-2020-15437: ELSA-2021-1578: kernel security, bug fix, and enhancement update (IMPORTANT) (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:L/AC:L/Au:M/C:N/I:N/A:C) | 2020-07-21 | 2021-05-26 | 2024-11-29 |
Severity
4
CVSS
(AV:L/AC:L/Au:M/C:N/I:N/A:C)
Published
2020-07-21
Added
2021-05-26
Modified
2024-11-29
Description
The Linux kernel before version 5.8 is vulnerable to a NULL pointer dereference in drivers/tty/serial/8250/8250_core.c:serial8250_isa_init_ports() that allows local users to cause a denial of service by using the p->serial_in pointer which uninitialized.
A NULL pointer dereference flaw was found in the Linux kernel’s UART 8250 functionality, in the way certain hardware architectures handled situations where default ports (0x2E8, 0x2F8, 0x3E8, 0x3F8) are not available. This flaw allows a local user to crash the system. The highest threat from this vulnerability is to system availability.
A NULL pointer dereference flaw was found in the Linux kernel’s UART 8250 functionality, in the way certain hardware architectures handled situations where default ports (0x2E8, 0x2F8, 0x3E8, 0x3F8) are not available. This flaw allows a local user to crash the system. The highest threat from this vulnerability is to system availability.
Solution
oracle-linux-upgrade-kernel
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