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Alpine Linux: CVE-2023-45664: Double Free

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Alpine Linux: CVE-2023-45664: Double Free

Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
10/20/2023
Created
08/23/2024
Added
08/22/2024
Modified
10/02/2024

Description

stb_image is a single file MIT licensed library for processing images. A crafted image file can trigger `stbi__load_gif_main_outofmem` attempt to double-free the out variable. This happens in `stbi__load_gif_main` because when the `layers * stride` value is zero the behavior is implementation defined, but common that realloc frees the old memory and returns null pointer. Since it attempts to double-free the memory a few lines below the first “free”, the issue can be potentially exploited only in a multi-threaded environment. In the worst case this may lead to code execution.

Solution(s)

  • alpine-linux-upgrade-stb

References

  • https://attackerkb.com/topics/cve-2023-45664
  • CVE - 2023-45664
  • https://security.alpinelinux.org/vuln/CVE-2023-45664
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