[Buildroot] [PATCH 2020.02.x] package/redis: security bump to version 5.0.11 (CVE-2021-21309)
peter at korsgaard.com
Sat Mar 13 16:06:14 UTC 2021
>>>>> "Thomas" == Thomas De Schampheleire <patrickdepinguin at gmail.com> writes:
> From: Thomas De Schampheleire <thomas.de_schampheleire at nokia.com>
> An integer overflow bug in 32-bit Redis version 4.0 or newer could be
> exploited to corrupt the heap and potentially result with remote code
> Redis 4.0 or newer uses a configurable limit for the maximum supported
> bulk input size. By default, it is 512MB which is a safe value for all
> If the limit is significantly increased, receiving a large request from
> a client may trigger several integer overflow scenarios, which would
> result with buffer overflow and heap corruption. We believe this could
> in certain conditions be exploited for remote code execution.
> By default, authenticated Redis users have access to all configuration
> parameters and can therefore use the “CONFIG SET proto-max-bulk-len” to
> change the safe default, making the system vulnerable.
> This problem only affects 32-bit Redis (on a 32-bit system, or as a
> 32-bit executable running on a 64-bit system).
> The problem is fixed in version 6.2, and the fix is back ported to
> 6.0.11 and 5.0.11. Make sure you use one of these versions if you're
> running 32-bit Redis.
> Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire at nokia.com>
> NOTE: this only applies to 2020.02.x.
> - For 2020.11.x a bump to 6.0.11 or later is needed (e.g. backport commit cbd5f7e3a9331).
> - For 2021.02, 6.0.12 is used which already contains the fix.
Committed to 2020.02.x after updating to 5.0.12 as pointed out by
Bye, Peter Korsgaard
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