Improper input validation in Mit Universal Turing Machine
CVE-2021-32471
Insufficient input validation in the Marvin Minsky 1967 implementation of the Universal Turing Machine allows program users to execute arbitrary code via crafted data. For example, a tape head may have an unexpected location after the processing of input composed of As and Bs (instead of 0s and 1s). NOTE: the discoverer states "this vulnerability has no real-world implications."
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (56.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- arxiv.org/abs/2105.02124 (Third Party Advisory)
- github.com/intrinsic-propensity/turing-machine (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-32471?
- CVE-2021-32471 is a high-severity vulnerability in Mit Universal Turing Machine, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2021-05-10.
- How severe is CVE-2021-32471?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-32471 known to be exploited?
- 12 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.