CVE-2024-26763

HIGH
Published Apr 3, 2024 Modified Mar 18, 2025 CWE-787

Description

In the Linux kernel, the following vulnerability has been resolved: dm-crypt: don't modify the data when using authenticated encryption It was said that authenticated encryption could produce invalid tag when the data that is being encrypted is modified [1]. So, fix this problem by copying the data into the clone bio first and then encrypt them inside the clone bio. This may reduce performance, but it is needed to prevent the user from corrupting the device by writing data with O_DIRECT and modifying them at the same time. [1] https://lore.kernel.org/all/[email protected]/T/

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CVSS v3.1 Score

7.1
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Weakness Type (CWE)

CWE-787 Out-of-bounds Write

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
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
debian debian_linux

References

Advisories & Patches

https://git.kernel.org/stable/c/0dccbb93538fe89a86c6de31d4b1c8c560848eaa https://git.kernel.org/stable/c/1a4371db68a31076afbe56ecce34fbbe6c80c529 https://git.kernel.org/stable/c/3c652f6fa1e1f9f02c3fbf359d260ad153ec5f90 https://git.kernel.org/stable/c/43a202bd552976497474ae144942e32cc5f34d7e https://git.kernel.org/stable/c/50c70240097ce41fe6bce6478b80478281e4d0f7 https://git.kernel.org/stable/c/64ba01a365980755732972523600a961c4266b75 https://git.kernel.org/stable/c/d9e3763a505e50ba3bd22846f2a8db99429fb857 https://git.kernel.org/stable/c/e08c2a8d27e989f0f5b0888792643027d7e691e6 https://git.kernel.org/stable/c/0dccbb93538fe89a86c6de31d4b1c8c560848eaa https://git.kernel.org/stable/c/1a4371db68a31076afbe56ecce34fbbe6c80c529 https://git.kernel.org/stable/c/3c652f6fa1e1f9f02c3fbf359d260ad153ec5f90 https://git.kernel.org/stable/c/43a202bd552976497474ae144942e32cc5f34d7e https://git.kernel.org/stable/c/50c70240097ce41fe6bce6478b80478281e4d0f7 https://git.kernel.org/stable/c/64ba01a365980755732972523600a961c4266b75 https://git.kernel.org/stable/c/d9e3763a505e50ba3bd22846f2a8db99429fb857 https://git.kernel.org/stable/c/e08c2a8d27e989f0f5b0888792643027d7e691e6

Frequently Asked Questions

What is CVE-2024-26763? +
In the Linux kernel, the following vulnerability has been resolved: dm-crypt: don't modify the data when using authenticated encryption It was said that authenticated encryption could produce invalid tag when the data that is being encrypted is modified [1]. So, fix this problem by copying the data into the clone bio first and then encrypt them inside the clone bio. This may reduce performance, but it is needed to prevent the user from corrupting the device by writing data with O_DIRECT and modifying them at the same time. [1] https://lore.kernel.org/all/[email protected]/T/ It has a CVSS v3.1 base score of 7.1 (HIGH).
How severe is CVE-2024-26763? +
CVE-2024-26763 has a CVSS v3.1 score of 7.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2024-26763? +
CVE-2024-26763 affects products from debian, linux, specifically: debian_linux, linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-26763? +
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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