Re: Inquiry about ARM gcc5 CVE-2023-4039 Patch

[Andrew Pinski <pinskia@gmail.com>]

On Mon, Oct 23, 2023 at 7:54 PM 老小孩老小孩 <arabain@126.com> wrote:
>
> Dear arms,
>
> I hope this message finds you well.
>
> I am writing to inquire about the issue of ARM gcc5 CVE-2023-4039. According to the advisory on GitHub (https://github.com/metaredteam/external-disclosures/security/advisories/GHSA-x7ch-h5rf-w2mf), this bug affects versions from 5.4.0 to the trunk as of May 15, 2023.
>
> However, I noticed that currently, patches are only provided for gcc7 and above, as per the information available on the ARM Security Center (https://developer.arm.com/Arm%20Security%20Center/GCC%20Stack%20Protector%20Vulnerability%20AArch64).
>
> Given the potential impact of this vulnerability, I am particularly interested in a patch for gcc5. Could you please provide information on whether a patch for gcc5 is available or planned? If not, could you suggest any possible workarounds or mitigation strategies for systems that are currently using gcc5?
>
> I appreciate your attention to this matter and look forward to your response.

THIS should NEVER have been a security CVE in the first place.
This is not a security issue with any correct code that GCC will process.
GCC does not consider this a security issue according to its security policy.
See the "Security features implemented in GCC" section of
https://gcc.gnu.org/git/?p=gcc.git;a=blob_plain;f=SECURITY.txt;hb=HEAD
for more information on that policy.

Thanks,
Andrew Pinski

>
> Best regards,