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Alpine Linux: CVE-2024-6874: Vulnerability in Multiple Components

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Alpine Linux: CVE-2024-6874: Vulnerability in Multiple Components

Severity
3
CVSS
(AV:N/AC:M/Au:S/C:P/I:N/A:N)
Published
07/24/2024
Created
08/23/2024
Added
08/22/2024
Modified
09/12/2024

Description

libcurl's URL API function [curl_url_get()](https://curl.se/libcurl/c/curl_url_get.html) offers punycode conversions, to and from IDN. Asking to convert a name that is exactly 256 bytes, libcurl ends up reading outside of a stack based buffer when built to use the *macidn* IDN backend. The conversion function then fills up the provided buffer exactly - but does not null terminate the string. This flaw can lead to stack contents accidently getting returned as part of the converted string.

Solution(s)

  • alpine-linux-upgrade-curl

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