Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2022-49548

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
26/02/2025
Last modified:
01/10/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> bpf: Fix potential array overflow in bpf_trampoline_get_progs()<br /> <br /> The cnt value in the &amp;#39;cnt &gt;= BPF_MAX_TRAMP_PROGS&amp;#39; check does not<br /> include BPF_TRAMP_MODIFY_RETURN bpf programs, so the number of<br /> the attached BPF_TRAMP_MODIFY_RETURN bpf programs in a trampoline<br /> can exceed BPF_MAX_TRAMP_PROGS.<br /> <br /> When this happens, the assignment &amp;#39;*progs++ = aux-&gt;prog&amp;#39; in<br /> bpf_trampoline_get_progs() will cause progs array overflow as the<br /> progs field in the bpf_tramp_progs struct can only hold at most<br /> BPF_MAX_TRAMP_PROGS bpf programs.

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:*:*:*:*:*:*:*:* 5.7 (including) 5.10.120 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.11 (including) 5.15.45 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.16 (including) 5.17.13 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.18 (including) 5.18.2 (excluding)

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


References to Advisories, Solutions, and Tools