Date: Fri, 22 Sep 2023 16:50:44 +0200 From: Vincent Rabaud <vrabaud@...gle.com> To: Solar Designer <solar@...nwall.com> Cc: oss-security@...ts.openwall.com Subject: Re: CVE-2023-4863: libwebp: Heap buffer overflow in WebP Codec Hi, we have commented on that here: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=62136#c7 On Fri, Sep 22, 2023 at 12:54 PM Solar Designer <solar@...nwall.com> wrote: > On Fri, Sep 22, 2023 at 07:28:17AM +0200, Hanno B??ck 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. > > Oh, you're correct - this commit is _not_ in 1.3.2. > > I was looking at the main branch and wrongly assumed that all I see in > there before: > > commit ca332209cb5567c9b249c86788cb2dbf8847e760 (tag: v1.3.2, origin/1.3.2) > > is in 1.3.2. However, that commit tagged 1.3.2 got into main as part of > a merge commit, by which point main already had other commits including > 95ea5226c870449522240ccff26f0b006037c520 that were not in 1.3.2 branch/tag. > > So there may be 1 to 3 commits fixing more security issues after 1.3.2. > > Thank you for correcting me! > > Alexander >
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