Integer overflow in Vim

CVE-2017-5953

vim before patch 8.0.0322 does not properly validate values for tree length when handling a spell file, which may result in an integer overflow at a memory allocation site and a resultant buffer overflow.

Vulnerability class: Integer Overflow

EPSS: 0.028 (85.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Vim
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2017-5953?
CVE-2017-5953 is a critical-severity vulnerability in Vim, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2017-02-10.
How severe is CVE-2017-5953?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2017-5953 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.