Vulnerability Details : CVE-2022-41849
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.
Vulnerability category: Memory Corruption
Exploit prediction scoring system (EPSS) score for CVE-2022-41849
Probability of exploitation activity in the next 30 days: 0.06%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 21 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2022-41849
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
4.2
|
MEDIUM | CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
0.5
|
3.6
|
NIST |
CWE ids for CVE-2022-41849
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The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.Assigned by: nvd@nist.gov (Primary)
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Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-41849
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https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5610bcfe8693c02e2e4c8b31427f1bdbdecc839c
fbdev: smscufx: Fix use-after-free in ufx_ops_open() - kernel/git/torvalds/linux.git - Linux kernel source tree
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https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html
[SECURITY] [DLA 3244-1] linux-5.10 security updateMailing List;Third Party Advisory
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https://lore.kernel.org/all/20220925133243.GA383897@ubuntu/T/
[PATCH v3] video: fbdev: smscufx: Fix use-after-free in ufx_ops_open()Mailing List;Patch;Vendor Advisory
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https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html
[SECURITY] [DLA 3245-1] linux security updateMailing List;Third Party Advisory
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https://lore.kernel.org/all/20220925133243.GA383897%40ubuntu/T/
[PATCH v3] video: fbdev: smscufx: Fix use-after-free in ufx_ops_open()
Products affected by CVE-2022-41849
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*