CVE-2023-52615

MEDIUM
Published Mar 18, 2024 Modified Dec 12, 2024 CWE-667

Description

In the Linux kernel, the following vulnerability has been resolved: hwrng: core - Fix page fault dead lock on mmap-ed hwrng There is a dead-lock in the hwrng device read path. This triggers when the user reads from /dev/hwrng into memory also mmap-ed from /dev/hwrng. The resulting page fault triggers a recursive read which then dead-locks. Fix this by using a stack buffer when calling copy_to_user.

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CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-667 CWE-667

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

https://git.kernel.org/stable/c/26cc6d7006f922df6cc4389248032d955750b2a0 https://git.kernel.org/stable/c/5030d4c798863ccb266563201b341a099e8cdd48 https://git.kernel.org/stable/c/6822a14271786150e178869f1495cc03e74c5029 https://git.kernel.org/stable/c/78aafb3884f6bc6636efcc1760c891c8500b9922 https://git.kernel.org/stable/c/aa8aa16ed9adf1df05bb339d588cf485a011839e https://git.kernel.org/stable/c/c6a8111aacbfe7a8a70f46cc0de8eed00561693c https://git.kernel.org/stable/c/eafd83b92f6c044007a3591cbd476bcf90455990 https://git.kernel.org/stable/c/ecabe8cd456d3bf81e92c53b074732f3140f170d https://git.kernel.org/stable/c/26cc6d7006f922df6cc4389248032d955750b2a0 https://git.kernel.org/stable/c/5030d4c798863ccb266563201b341a099e8cdd48 https://git.kernel.org/stable/c/6822a14271786150e178869f1495cc03e74c5029 https://git.kernel.org/stable/c/78aafb3884f6bc6636efcc1760c891c8500b9922 https://git.kernel.org/stable/c/aa8aa16ed9adf1df05bb339d588cf485a011839e https://git.kernel.org/stable/c/c6a8111aacbfe7a8a70f46cc0de8eed00561693c https://git.kernel.org/stable/c/eafd83b92f6c044007a3591cbd476bcf90455990 https://git.kernel.org/stable/c/ecabe8cd456d3bf81e92c53b074732f3140f170d https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html

Frequently Asked Questions

What is CVE-2023-52615? +
In the Linux kernel, the following vulnerability has been resolved: hwrng: core - Fix page fault dead lock on mmap-ed hwrng There is a dead-lock in the hwrng device read path. This triggers when the user reads from /dev/hwrng into memory also mmap-ed from /dev/hwrng. The resulting page fault triggers a recursive read which then dead-locks. Fix this by using a stack buffer when calling copy_to_user. It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2023-52615? +
CVE-2023-52615 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2023-52615? +
CVE-2023-52615 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2023-52615? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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