+ Thomas Grainger Thanks Mike for reporting it.
In resume, there is a MR which would solve this https://gitlab.freedesktop.org/gnu-grub/grub/-/merge_requests/177 Thomas, correct me if I am wrong? On Tue, Aug 11, 2026 at 2:56 PM Mike Gilbert <[email protected]> wrote: > 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 > > _______________________________________________ > Grub-devel mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/grub-devel > >
