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
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:N/A:H.
EPSS exploit prediction
EPSS: 0.037 (89.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.035 · newest: 0.037 · change: +0.003
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- gmplib.org/list-archives/gmp-bugs/2021-September/005077.html (Exploit, Third Party Advisory)
- bugs.debian.org/994405 (Mailing List, Third Party Advisory)
- gmplib.org/repo/gmp-6.2/rev/561a9c25298e (Patch, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2021/12/msg00001.html (mailing-list, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2022/10/13/3 (mailing-list, Mailing List, Third Party Advisory)
- seclists.org/fulldisclosure/2022/Oct/8 (mailing-list, Mailing List, Third Party Advisory)
- security.netapp.com/advisory/ntap-20221111-0001/ (Third Party Advisory)
- security.gentoo.org/glsa/202309-13 (vendor-advisory)
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.