CVE-2018-25032 on u-boot zlib

[Tom Rini]

On Thu, Apr 21, 2022 at 06:31:44AM +0000, Gan, Yau Wai wrote:

> This is to report that CVE is detected during u-boot scanning. Sending to open mailing list as get_maintainer suggested.
> 
> The current zlib version used in u-boot contains CVE-2018-25032 [1].
> Corresponding fix in zlib mainline has been addressed in v1.2.12 [2].
> It is required to upgrade zlib in u-boot to that version or later to mitigate the CVE.
> 
> [1] https://www.cve.org/CVERecord?id=CVE-2018-25032
> [2] https://github.com/madler/zlib/commit/5c44459c3b28a9bd3283aaceab7c615f8020c531

Please note that by default, no U-Boot binary is vulnerable to this as
we only support using the zlib deflate (so, compress a file, not
uncompress an archive) when CMD_ZIP is enabled.  This is only true of
the sandbox build.

A patch to apply the fix from upstream would be most welcome, all the
same.  Thanks!

-- 
Tom
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