It looks like the cause is the HTTP chunk handling. Testing of this code
showed a couple of buffer overruns, which are now fixed in snapd-glib
1.40.
** Also affects: gnome-software (Ubuntu Cosmic)
Importance: Medium
Status: Confirmed
** Also affects: gnome-software (Ubuntu Bionic)
Importance: Undecided
Status: New
** Changed in: gnome-software (Ubuntu Cosmic)
Status: Confirmed => Fix Committed
** Changed in: gnome-software (Ubuntu Bionic)
Status: New => Triaged
** Changed in: gnome-software (Ubuntu Bionic)
Importance: Undecided => High
** Changed in: gnome-software (Ubuntu Cosmic)
Importance: Medium => High
** Changed in: gnome-software (Ubuntu Cosmic)
Assignee: (unassigned) => Robert Ancell (robert-ancell)
** Changed in: gnome-software (Ubuntu Bionic)
Assignee: (unassigned) => Robert Ancell (robert-ancell)
** Changed in: gnome-software (Ubuntu Bionic)
Status: Triaged => In Progress
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https://bugs.launchpad.net/bugs/1740865
Title:
gnome-software (5) g_realloc → g_array_maybe_expand → g_array_set_size
→ g_byte_array_set_size → read_cb
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