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Message-ID: <72a6e741-1420-d21d-11cc-2592598e53f4@canonical.com>
Date: Fri, 22 Sep 2023 07:42:22 -0400
From: Marc Deslauriers <marc.deslauriers@...onical.com>
To: oss-security@...ts.openwall.com, Hanno Böck
<hanno@...eck.de>
Subject: Re: CVE-2023-4863: libwebp: Heap buffer overflow in
WebP Codec
On 2023-09-22 01:28, Hanno Böck wrote:
> On Thu, 21 Sep 2023 22:52:50 +0200
> Solar Designer <solar@...nwall.com> wrote:
>
>> However, another maybe-important one also made it into 1.3.2:
>>
>> commit 95ea5226c870449522240ccff26f0b006037c520
>> Author: Vincent Rabaud <vrabaud@...gle.com>
>> Date: Mon Sep 11 16:06:08 2023 +0200
>>
>> Fix invalid incremental decoding check.
>
> It does not look to me that this fix is in 1.3.2:
> https://github.com/webmproject/libwebp/commits/v1.3.2
>
> I've seen this commit as well and have been wondering for a few days if
> we'll hear about abother libwebp issue soon.
>
We (Ubuntu) didn't include that second commit in our libwebp updates, and I
don't believe Red Hat/Fedora did either. If that second commit does have a
security impact, it probably needs a different CVE to clear up confusion.
Marc.
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