On Tue, Aug 11, 2026 at 12:26 PM Steve McIntyre <[email protected]> wrote: > > Adding the GRUB upstream development list on this too; the information > is already public in the Debian BTS so there's no point trying to keep > thie embargoed. > > On Tue, Aug 11, 2026 at 10:20:10AM +0200, Bastien Roucaries wrote: > >Le mardi 11 août 2026, 06:19:06 heure d’été d’Europe centrale Carlos > >Henrique Lima Melara a écrit : > >> Control: found -1 2.14~git20250718.0e36779-1 > >> > >> Hi, > >> > >> On Mon, Aug 10, 2026 at 09:50:59PM +0200, Bastien Roucaries wrote: > >> > > >> > CVE-2025-13151 (libtasn1 - off-by-one in asn1_expand_octet_string, fixed > >> > in > >> > 4.20.0) > >> > > >> > The fix changes: > >> > char name[2 * ASN1_MAX_NAME_SIZE + 1] > >> > > >> > to: > >> > char name[2 * ASN1_MAX_NAME_SIZE + 2] > >> > > >> > This applies to two functions: asn1_expand_any_defined_by and > >> > asn1_expand_octet_string. > >> > > >> > Grub2 vendor libtasn1 internally and show a partial fix - > >> > asn1_expand_any_defined_by has been updated (+ 2 present) but > >> > asn1_expand_octet_string still carries the vulnerable version (+ 1): > >> > - grub2 (grub-core/lib/libtasn1/lib/decoding.c) > >> > asn1_expand_any_defined_by: patched > >> > asn1_expand_octet_string: VULNERABLE > >> > Note: grub2 carries two separate embedded copies (libtasn1 and > >> > libtasn1-grub) > >> > > >> > Thanks to Gajendra Nath Soren > >> > >> This embedded copy was added in 9a26abbc368 (grub-2.14-rc1), so it only > >> (possibly) affects forky/sid. > > > >Can we report upstream ? > > > >rouca > >> > >> Cheers, > >> Charles > >> > >
Thanks for the heads-up. I created a task on the new GRUB issue tracker. https://gitlab.freedesktop.org/gnu-grub/grub/-/work_items/66
