high7.5Public exploit code
CVE-2019-7303
A vulnerability in the seccomp filters of Canonical snapd before version 2.37.4 allows a strict mode snap to insert characters into a terminal on a 64-bit host.
Public exploit code
Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.
- snap - seccomp BBlacklist for TIOCSTI can be Circumvented2019-03-22 · dos · linux · Verified
Impact
A vulnerability in the seccomp filters of Canonical snapd before version 2.37.4 allows a strict mode snap to insert characters into a terminal on a 64-bit host. The seccomp rules were generated to match 64-bit ioctl(2) commands on a 64-bit platform; however, the Linux kernel only uses the lower 32 bits to determine which ioctl(2) commands to run. This issue affects: Canonical snapd versions prior to 2.37.4.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Canonical | Snapd | before 2.37.4 |
| Canonical | Ubuntu Linux | Versions 14.04, 16.04, 18.04, 18.10 |