[Buildroot] [PATCH 1/1] package/cryptsetup: security bump to version 2.3.4
Peter Korsgaard
peter at korsgaard.com
Fri Oct 30 08:27:52 UTC 2020
>>>>> "Fabrice" == Fabrice Fontaine <fontaine.fabrice at gmail.com> writes:
> Fix CVE-2020-14382: A vulnerability was found in upstream release
> cryptsetup-2.2.0 where, there's a bug in LUKS2 format validation code,
> that is effectively invoked on every device/image presenting itself as
> LUKS2 container. The bug is in segments validation code in file
> 'lib/luks2/luks2_json_metadata.c' in function
> hdr_validate_segments(struct crypt_device *cd, json_object *hdr_jobj)
> where the code does not check for possible overflow on memory allocation
> used for intervals array (see statement "intervals = malloc(first_backup
> * sizeof(*intervals));"). Due to the bug, library can be *tricked* to
> expect such allocation was successful but for far less memory then
> originally expected. Later it may read data FROM image crafted by an
> attacker and actually write such data BEYOND allocated memory.
> https://mirrors.edge.kernel.org/pub/linux/utils/cryptsetup/v2.3/v2.3.4-ReleaseNotes
> Signed-off-by: Fabrice Fontaine <fontaine.fabrice at gmail.com>
Committed to 2020.08.x, thanks.
For 2020.02.x I will instead backport the fixes.
--
Bye, Peter Korsgaard
More information about the buildroot
mailing list