Vulnerability Details : CVE-2023-52567
In the Linux kernel, the following vulnerability has been resolved:
serial: 8250_port: Check IRQ data before use
In case the leaf driver wants to use IRQ polling (irq = 0) and
IIR register shows that an interrupt happened in the 8250 hardware
the IRQ data can be NULL. In such a case we need to skip the wake
event as we came to this path from the timer interrupt and quite
likely system is already awake.
Without this fix we have got an Oops:
serial8250: ttyS0 at I/O 0x3f8 (irq = 0, base_baud = 115200) is a 16550A
...
BUG: kernel NULL pointer dereference, address: 0000000000000010
RIP: 0010:serial8250_handle_irq+0x7c/0x240
Call Trace:
? serial8250_handle_irq+0x7c/0x240
? __pfx_serial8250_timeout+0x10/0x10
Vulnerability category: Memory Corruption
Products affected by CVE-2023-52567
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.6:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.6:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.6:rc3:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-52567
0.01%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-52567
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST | 2024-12-11 |
CWE ids for CVE-2023-52567
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2023-52567
-
https://git.kernel.org/stable/c/e14afa4450cb7e4cf93e993a765801203d41d014
serial: 8250_port: Check IRQ data before use - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/bf3c728e3692cc6d998874f0f27d433117348742
serial: 8250_port: Check IRQ data before use - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/3345cc5f02f1fb4c4dcb114706f2210d879ab933
serial: 8250_port: Check IRQ data before use - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/c334650150c29234b0923476f51573ae1b2f252a
serial: 8250_port: Check IRQ data before use - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/cce7fc8b29961b64fadb1ce398dc5ff32a79643b
serial: 8250_port: Check IRQ data before use - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/2b837f13a818f96304736453ac53b66a70aaa4f2
serial: 8250_port: Check IRQ data before use - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/e14f68a48fd445a083ac0750fafcb064df5f18f7
serial: 8250_port: Check IRQ data before use - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/ee5732caaffba3a37e753fdb89b4958db9a61847
serial: 8250_port: Check IRQ data before use - kernel/git/stable/linux.git - Linux kernel stable treePatch
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