Date: Mon, 15 Jun 2020 17:03:12 -0600 From: "Jason A. Donenfeld" <Jason@...c4.com> To: oss-security <oss-security@...ts.openwall.com> Cc: cve-assign@...re.org Subject: Re: lockdown bypass on mainline kernel for loading unsigned modules Hi Mitre, People are requesting a CVE to track this and are poking me to poke you to assign one. Note that this would be for a *different* CVE than the one I requested for the Ubuntu vulnerability a minute ago. This vulnerability here affects a different set of kernels and uses a different vector. Jason On Mon, Jun 15, 2020 at 4:26 AM Jason A. Donenfeld <Jason@...c4.com> wrote: > > Hi everyone, > > Yesterday, I found a lockdown bypass in Ubuntu 18.04's kernel using > ACPI table tricks via the efi ssdt variable . Today I found another > one that's a bit easier to exploit and appears to be unpatched on > mainline, using acpi_configfs to inject an ACPI table. The tricks are > basically the same as the first one, but this one appears to be > unpatched, at least on my test machine. Explanation is in the header > of the PoC: > > https://git.zx2c4.com/american-unsigned-language/tree/american-unsigned-language-2.sh > > I need to get some sleep, but if nobody posts a patch in the > meanwhile, I'll try to post a fix tomorrow. > > Jason > >  https://www.openwall.com/lists/oss-security/2020/06/14/1
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