vulnerability
Alpine Linux: CVE-2024-6874: Out-of-bounds Read
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 3 | (AV:N/AC:M/Au:S/C:P/I:N/A:N) | Jul 24, 2024 | Aug 22, 2024 | Oct 14, 2024 |
Severity
3
CVSS
(AV:N/AC:M/Au:S/C:P/I:N/A:N)
Published
Jul 24, 2024
Added
Aug 22, 2024
Modified
Oct 14, 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.
[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
alpine-linux-upgrade-curl
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