Libtpms: libtpms: heap out-of-bounds read in tpm2 state unmarshalling via unchecked block_skip_read() blocksize

• azl3 libtpms 0.9.6-8 on Azure Linux 3.0

• azl3 libtpms 0.9.6-9 on Azure Linux 3.0

SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.

1. Oct 2, 2026 at 12:40 PM UTC
   • The vendor changed the advisory's last-updated date.
2. Sep 27, 2026 at 11:11 PM UTC
   • Added affected products: azl3 libtpms 0.9.6-9 on Azure Linux 3.0.
   • Added fixed versions: 0.9.6-9.
   • The vendor changed its remediation guidance.

1. Sep 9, 2026 at 1:02 AM UTC
   Published by Microsoft Security Response Center

   The publication date reported by the vendor.

2. Sep 9, 2026 at 7:25 AM UTC
   Added to SecurityAlert

   We collected the advisory from the official source.

3. Oct 2, 2026 at 3:47 AM UTC
   Updated by Microsoft Security Response Center

   The vendor changed the advisory after it was first published.

4. Oct 28, 2026 at 3:45 AM UTC
   Confirmed at the source

   Our collector saw this advisory during a later source check.