CVE-2019-7303 EXPLOIT
7.5
HIGH · CVSS 3.1 · EPSS 3.7% (pctl 89)
Patch early
A public exploit exists.
Description
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.
Scoring
| CVSS | 7.5 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| EPSS | 3.7% — more likely to be exploited than 89% of all CVEs |
| Weakness | CWE-628 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2019-04-23 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| canonical | snapd |
| canonical | ubuntu linux |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | snap - seccomp BBlacklist for TIOCSTI can be Circumvented | 2019-03-22 |
References
→ the Explorer · watch your stack · NVD