Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2024-46741

Severity CVSS v4.0:
Pending analysis
Type:
CWE-415 Double Free
Publication date:
18/09/2024
Last modified:
20/09/2024

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> misc: fastrpc: Fix double free of &amp;#39;buf&amp;#39; in error path<br /> <br /> smatch warning:<br /> drivers/misc/fastrpc.c:1926 fastrpc_req_mmap() error: double free of &amp;#39;buf&amp;#39;<br /> <br /> In fastrpc_req_mmap() error path, the fastrpc buffer is freed in<br /> fastrpc_req_munmap_impl() if unmap is successful.<br /> <br /> But in the end, there is an unconditional call to fastrpc_buf_free().<br /> So the above case triggers the double free of fastrpc buf.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
7.80
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2 (including) 6.6.51 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7 (including) 6.10.10 (excluding)
cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc6:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools