Vulnerability in Canonical Snapd
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. 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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.037 (89.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.037 · newest: 0.037 · change: 0.000
Affected products
- Canonical Snapd — versions unspecified
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
Weakness classification (CWE)
Public proof-of-concept exploits
References
- usn.ubuntu.com/3917-1/ (Third Party Advisory)
- www.exploit-db.com/exploits/46594 (Exploit, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-7303?
- CVE-2019-7303 is a high-severity vulnerability in Canonical Snapd, classified under CWE-628. CVSS score: 7.5/10. Published 2019-04-23.
- How severe is CVE-2019-7303?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2019-7303 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.