Executive Summary

Informations
Name CVE-2020-36776 First vendor Publication 2024-02-27
Vendor Cve Last vendor Modification 2024-04-10

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 5.5
Base Score 5.5 Environmental Score 5.5
impact SubScore 3.6 Temporal Score 5.5
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

In the Linux kernel, the following vulnerability has been resolved:

thermal/drivers/cpufreq_cooling: Fix slab OOB issue

Slab OOB issue is scanned by KASAN in cpu_power_to_freq(). If power is limited below the power of OPP0 in EM table, it will cause slab out-of-bound issue with negative array index.

Return the lowest frequency if limited power cannot found a suitable OPP in EM table to fix this issue.

Backtrace: [] die+0x104/0x5ac [] bug_handler+0x64/0xd0 [] brk_handler+0x160/0x258 [] do_debug_exception+0x248/0x3f0 [] el1_dbg+0x14/0xbc [] __kasan_report+0x1dc/0x1e0 [] kasan_report+0x10/0x20 [] __asan_report_load8_noabort+0x18/0x28 [] cpufreq_power2state+0x180/0x43c [] power_actor_set_power+0x114/0x1d4 [] allocate_power+0xaec/0xde0 [] power_allocator_throttle+0x3ec/0x5a4 [] handle_thermal_trip+0x160/0x294 [] thermal_zone_device_check+0xe4/0x154 [] process_one_work+0x5e4/0xe28 [] worker_thread+0xa4c/0xfac [] kthread+0x33c/0x358 [] ret_from_fork+0xc/0x18

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36776

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-129 Improper Validation of Array Index

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 3424

Sources (Detail)

https://git.kernel.org/stable/c/34ab17cc6c2c1ac93d7e5d53bb972df9a968f085
https://git.kernel.org/stable/c/6bf443acf6ca4f666d0e4225614ba9993a3aa1a9
https://git.kernel.org/stable/c/876a5f33e5d961d879c5436987c09b3d9ef70379
https://git.kernel.org/stable/c/c24a20912eef00587416628149c438e885eb1304
Source Url

Alert History

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0
1
2
Date Informations
2024-04-11 00:27:49
  • Multiple Updates
2024-02-28 17:27:37
  • Multiple Updates
2024-02-28 00:27:27
  • First insertion