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CVE-2022-41849

Good to know:

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Date: September 29, 2022

drivers/video/fbdev/smscufx.c in the Linux kernel through 5.19.12 has a race condition and resultant use-after-free if a physically proximate attacker removes a USB device while calling open(), aka a race condition between ufx_ops_open and ufx_usb_disconnect.

Language: C

Severity Score

Related Resources (9)

https://security-tracker.debian.org/tracker/CVE-2022-41849
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5610bcfe8693c02e2e4c8b31427f1bdbdecc839c
https://nvd.nist.gov/vuln/detail/CVE-2022-41849
https://lore.kernel.org/all/20220925133243.GA383897@ubuntu/T/
https://lore.kernel.org/all/20220925133243.GA383897%40ubuntu/T/
https://people.canonical.com/~ubuntu-security/cve/CVE-2022-41849
https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html
https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html
https://www.mend.io/vulnerability-database/CVE-2022-41849

Severity Score

Weakness Type (CWE)

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-362

Use After Free

CWE-416

Top Fix

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Upgrade Version

Upgrade to version linux-yocto - 4.8.26+gitAUTOINC+1c60e003c7_27efc3ba68;linux-yocto - 4.10+gitAUTOINC+805ea440c7_b259a5d744;linux-libc-headers - 5.14

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CVSS v3.1

Base Score:
Attack Vector (AV): PHYSICAL
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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