Integer overflow in Gmplib Gmp

CVE-2021-43618

GNU Multiple Precision Arithmetic Library (GMP) through 6.2.1 has an mpz/inp_raw.c integer overflow and resultant buffer overflow via crafted input, leading to a segmentation fault on 32-bit platforms.

Vulnerability class: Integer Overflow

EPSS: 0.034 (87.7th percentile) — read the EPSS interpretation.

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:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-43618?
CVE-2021-43618 is a high-severity vulnerability in Gmplib Gmp, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2021-11-15.
How severe is CVE-2021-43618?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2021-43618 known to be exploited?
5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.